Ari D. Brooks MD, FACS

Surgical morbidity Incremental reduction in the radicality of treatment has resulted in less morbidity symptoms 0f parkinsons disease order quetiapine 300 mg on line. Wound breakdown in treatment 1 best buy quetiapine, wound infections medicine names quetiapine 200 mg sale, lymphocysts medications given during dialysis cheap 300 mg quetiapine visa, lymphoedema treatment yellow tongue generic 100 mg quetiapine overnight delivery, vulvar disfigurement and psychosexual disturbance remain problematic. This is still the case when large excisions are required, but even in these instances, more frequent use of plastic reconstructive techniques results in improved healing and better cosmetic outcomes. In smaller vulvar tumours, wide local excision with separate groin wounds has decreased the wound breakdown rate significantly. Problems with micturition (spraying, angulation of urine, urethral stenosis) are not uncommon if the distal third of the urethra is excised. Surgery for perineal and perianal lesions may give rise to problems with defaecation (constipation, tenesmus and faecal incontinence), localized pain when sitting and coital difficulties (Barton 2003). Occasionally, repeat surgery is needed to excise fibrotic tissue or to widen the stenotic introitus in order to facilitate coitus. Postoperative adjuvant therapy Patients with risk factors for local recurrence, such as a close surgical margin, lymphovascular space permeation, poorly differentiated tumour grade or diffuse infiltrative growth pattern, should be considered for adjuvant external beam radiation therapy to reduce the risk of recurrence (Perez et al 1998, Blake 2003). With regard to the nodal status, no additional treatment is recommended if there is only one microscopically positive lymph node (Hacker et al 1983). However, if two or more metastatic nodes are present, or there is capsular involvement in a single metastatic node, postoperative adjuvant radiotherapy is usually recommended (van der Velden et al 1995). Groin morbidity Lymphocysts and infection are the two most common shortterm groin complications. Despite the routine use of drains and antibiotics, complications are still as high as 66% (Gaarenstroom et al 2003). More troublesome is the longterm complication of lower limb lymphoedema, which is often difficult to treat and can cause significant distress to patients. The incidence of lymphoedema is further increased if adjuvant radiotherapy is given after surgery (Barton 2003). The simplest approach to reduce groin morbidity is less radical surgery and avoidance of double treatment. In 1973, Boronow suggested a combined radiosurgical approach to shrink the tumour preoperatively, aiming to spare this group of patients from exenterative surgery. Subsequent reports (Hacker et al 1984a, Boronow et al 1987) confirmed the feasibility of this function-sparing approach. However, complications are considerable, especially in delayed wound healing, and overall increased treatmentrelated morbidity. However, three patients receiving cisplatin alone showed no response or even progression (Geisler et al 2006). However, all of the studies were small and uncontrolled, and should be interpreted with caution. Advanced Disease Advanced vulvar cancer (T3/T4) is characterized by local extension to neighbouring structures (urethra, vagina, bladder and anus). Regional lymph node metastases are present in over 50% of these patients (Hacker et al 1983). Ultraradical surgery with urinary tract and/or bowel diversion is required for complete excision. Unfortunately, most of these patients are elderly and frail, having significant comorbidities rendering them unsuitable for such extensive surgery. Radiation therapy with or without chemotherapy can shrink some tumours before surgery, sparing them from stoma formation and reducing surgical morbidity (Hacker et al 1984a, Boronow et al 1987). Furthermore, preoperative chemoradiation can result in fixed groin nodes becoming resectable (Montana et al 2000). Radiation therapy with or without concurrent chemotherapy should be considered as an alternative option for patients with advanced vulvar cancer who would otherwise require exenterative surgery. Primary treatment Radiotherapy alone as a treatment for vulvar cancer is not recommended in operable tumours, mainly because of the perceived intolerance of vulvar tissue. However, it is an option in patients who cannot undergo surgery because of advanced disease or comorbidity issues. In selected cases, primary radiotherapy can cure vulvar cancer with acceptable morbidity (Busch et al 1999). Chemotherapy can be added to the regimen, either as a neoadjuvant to reduce tumour bulk or as concomitant chemoradiotherapy to improve cure rates (Moore et al 1998). Although the groin tolerates radiotherapy better than the vulva, primary radiotherapy to treat groin disease is not recommended. One study has reported a higher recurrence rate when comparing radiation therapy with inguinofemoral lymphadenectomy (Stehman et al 1992b). However, this study has been criticized on the basis of suboptimal radiotherapy technique, particularly that the maximum dose did not reach the deep inguinofemoral nodes. More recently, Katz et al (2003) re-evaluated the value of primary radiotherapy for groin disease. Comparable recurrence rates were observed when radiotherapy alone was compared with inguinofemoral lymphadenectomy (15% vs 16. The authors concluded that radiotherapy alone was as effective as surgery in preventing groin recurrence. This study was criticized largely because of difficulties in interpreting the individualized treatment. Although the available data are somewhat confused, radiotherapy appears to be an effective treatment for microscopic (residual) disease in the groin, but less effective when gross disease is present. Recurrences Rouzier et al (2002) identified three patterns of local recurrence: · · · primary site recurrence, defined as within 2 cm of the vulvectomy scar (39%); recurrence remote from the primary tumour site, regarded as reoccurrence of cancer (39%); and skin bridge recurrence (22%). Palliation Patients with advanced disease and distant metastasis might not derive much overall benefit from radical surgery. Chemotherapy the role of chemotherapy in vulvar cancer is either as concomitant therapy with radiation or as a palliative manoeuvre in recurrent or metastatic disease. The anal sphincter and urethra were conserved in these patients during subsequent Tumour size, surgical margins and depth of invasion (Rouzier et al 2002) are risk factors for primary site relapse. It is usually salvageable with repeat surgical excision or radiotherapy (Thomas et al 1989, Hopkins et al 1990). The prognosis is generally good, with more than 60% of patients surviving for more than 3 years. Patients with skin bridge recurrence seldom live for more than 1 year (Rouzier et al 2002). Groin recurrence is seen more often when previous node dissection was omitted, or when positive nodes were present at primary surgery. The prognosis is poor, with more than 90% of patients dying within 1 year (Hacker et al 1984b). Malignant Melanoma Malignant melanoma is the second most common vulvar malignancy, accounting for 5­10% of cases of vulvar cancer. It is a disease of the elderly, occurring in the fifth to seventh decades, and is more common in 621 41 Malignant disease of the vulva and vagina Caucasians. The labia minora, clitoris or inner aspects of the labia majora are the most common sites. A variety of pigmented lesions mimic vulvar melanoma, including vulvar melanosis, different types of nevi and acanthosis nigricans. Three histological subtypes have been described (Ragnarsson-Olding et al 1999a): positive, adjuvant radiotherapy is indicated to reduce the risk of recurrence (Copeland et al 1986). Adenoid cystic carcinoma is a rare variant, characterized by slow growth, with a marked tendency for perineural and local invasion. Approximately 10% of cases are invasive and 4­8% are associated with adenocarcinoma (Fanning et al 1999). The disease predominantly affects postmenopausal Caucasian women, usually presenting with vulvar pruritus and soreness. Thus, it is not uncommon for patients to undergo multiple recurrences and re-excisions over years of surveillance. In the event of finding invasive carcinoma, the patient should be treated with radical vulvectomy and groin node dissection, as for squamous cell carcinoma. The most commonly used are the Clark et al (1969), Breslow (1970) and Chung et al (1975) systems. However, in 1994, a Gynecologic Oncology Group study showed that the American Joint Committee on Cancer melanoma staging system is more accurate in predicting outcome (Phillips et al 1994). However, the available literature suggests no survival difference in patients having a radical vulvectomy, simple vulvectomy or wide local excision (Rose et al 1988, Tasseron et al 1992). The current consensus is to aim for a tumour-free margin of at least 1 cm for tumour less than 1 mm thick, a tumour-free margin of 2 cm for tumours 1­4 mm thick, and a tumour-free margin of at least 1 cm at the subcutaneous layer for all cases. The role of elective regional node dissection is controversial for both cutaneous and vulvar melanoma. A prospective study by the Gynecologic Oncology Group in 1994 failed to find a definite survival benefit for elective lymph node dissection in patients with vulvar melanoma (Phillips et al 1994). Radiotherapy has been suggested for incomplete tumour resection or positive groin/pelvic lymph nodes (Piura 2008). Interferon -2b seems to be a promising adjuvant therapy for cutaneous melanoma (Kirkwood et al 2001), but data in vulvar melanoma are lacking. Vulvar melanoma is usually highly aggressive, with a tendency to recur locally and spread haematogenously to distant organs such as the liver, lung and brain. Reported 5-year survival rates range from 21% to 54% (Podratz et al 1983b, Blessing et al 1991, Ragnarsson-Olding et al 1999b, Verschraegen et al 2001). Verrucous Carcinoma Verrucous carcinoma is a rare variant of squamous cell carcinoma, characterized by local invasion without nodal or distant metastases. The tumour may arise from either the gland or the duct, thus various histological types may occur, including adenocarcinomas, squamous carcinomas, transitional cell carcinomas, adenosquamous carcinomas and adenoid cystic carcinomas. Since most of these lesions are located deep in the vulva, radical excision usually involves removing part of the vagina, levator muscles and the ischiorectal fat in order to achieve an adequate tumourfree margin. Pathology More than 80% of primary vaginal tumours are squamous cell carcinomas; adenocarcinomas are the second most common, accounting for approximately 15% (Grigsby 2002). The remainder are sarcomas, malignant melanomas, small cell carcinomas, lymphomas and carcinoid tumours. Metastatic lesions from non-gynaecological sites have also been reported, including bladder, kidney, colon and rectum (Tarraza et al 1998, Parikh et al 2008). Basal Cell Carcinoma Basal cell carcinoma accounts for approximately 2­4% of all cases of vulvar cancer. It usually appears as a small (1­2 cm), raised, nodular lesion with well-defined edges. Wide local excision with a 1 cm margin is usually curative, and recurrence and metastases are rare (Mulayim et al 2002). Sarcoma Vulvar sarcoma is extremely rare and treatment options are derived from anecdotal case reports. Leiomyosarcoma, rhabdomyosarcoma, malignant fibrous histiocytoma, dermatofibrosacroma protuberans and epithelioid sarcoma are all reported in the literature. The usual treatment is radical vulvectomy and groin node dissection (Aartsen and AlbusLutter 1994, Hensley 2000). Clinical assessment the most common presenting symptoms are painless vaginal bleeding (81%) and abnormal discharge (33%) (Pingley et al 2000). Occasionally, vaginal cancer may be recognized after an abnormal Pap smear (Pride et al 1979). The majority of lesions are located in the upper posterior vagina, usually in the form of an exophytic mass with contact bleeding (Pingley et al 2000). It is not uncommon to miss a small lower vaginal lesion at the initial examination, when it may be hidden by the blades of the speculum. If vaginal cancer is to be excluded, a full and thorough inspection of the entire vagina is required. In order to make a diagnosis of vaginal cancer, apart from histological confirmation, certain criteria are to be met (Benedet et al 2000): Cancer of the Vagina Introduction Vaginal carcinoma accounts for less than 2% of gynaecological cancers (Kirkbride et al 1995). Up to one-third of patients have a history of a cervical lesion, either benign or malignant (Peters et al 1985). Stock et al (1995) reviewed 100 cases of vaginal cancer and found that patients who had a previous hysterectomy were more likely to develop a lesion in the upper third of the vagina compared with women who had not had an hysterectomy (62% vs 34%, P<0. Vaginal cancer caused by chronic irritation, such as procidentia and vaginal pessaries, has been reported (Ghosh et al 2009) but the incidence is extremely low. Intrauterine exposure to diethylstilboestrol was thought to be a causative agent for clear cell adenocarcinoma of the vagina in the past (Herbst et al 1971). The diagnosis of vaginal cancer should only be made with a biopsy, which may be taken either in the office or under anaesthesia. The latter is preferable because it provides an opportunity to examine the patient in total relaxation, and a generous full-thickness excisional biopsy may be obtained. Chest radiography and an intravenous pyelogram are necessary to exclude lung metastasis and ureteric involvement. It is a clinical staging system based on findings from physical examination, cystoscopy, proctoscopy and chest X-ray. Pattern of spread Vaginal cancer initially spreads by local invasion; it may infiltrate adjacent pelvic organs and the side walls by direct extension. Tumour in the upper vagina embolizes to the pelvic and para-aortic lymph nodes, while those in the lower vagina metastasize to the groin lymph nodes and 623 41 Malignant disease of the vulva and vagina Table 41. Treatment Due to the rarity of this disease, there is no consensus on the treatment, be it radiation or surgery. Patients should be managed in tertiary centres, and all treatment should be individualized according to stage and site of disease. The close proximity of the bladder and rectum limit the ability of surgery to radically excise tumour without significant functional compromise. A number of reports have shown that sequential use of teletherapy followed by brachytherapy results in a better outcome (Perez et al 1999, Pingley et al 2000). External radiation is used to treat disease with lateral infiltration; the irradiation field is similar to that for cervical cancer. The pelvis receives 50 Gy, covering the side walls, pelvic nodes and the whole vagina (Grigsby 2002).

Develop a welcoming environment Reception staff should develop cultural competence; clinic waiting rooms should have written policies on sexual orientation antidiscrimination symptoms 9dpo bfp order quetiapine with mastercard, clear confidentiality policies and relevant intake forms; and posters medicine encyclopedia purchase generic quetiapine on-line, brochures and other health promotion materials should be displayed or made available medications54583 buy quetiapine 300 mg low price. Simple things treatment 7 cheap quetiapine 100 mg online, such as posters in the waiting room symptoms zinc toxicity buy 200 mg quetiapine otc, wearing of lapel pins or badges, family photos in the surgery and the use of language, can create a very welcoming or potentially hostile environment even before a consultation starts. Contrary to popular belief, you cannot tell if a woman is a lesbian or bisexual from her appearance, but only if she tells you; this will be dependent on her working out what your reaction might be. Bauer G, Welles S 2001 Beyond assumptions of negligible risk: sexually transmitted diseases and women who have sex with women. Boehmer U 2002 Twenty years of public health research: inclusion of lesbian, gay, bisexual, and transgender populations. Brewaeys A, Ponjaert I, van Hall E, Golombok S 1997 Donor insemination: child development and family functioning in lesbian mother families. Council on Scientific Affairs, American Medical Association 1996 Health care needs of gay men and lesbians in the United States. Department of Trade and Industry 2004 Final Regulatory Impact Assessment: Civil Partnership Act 2004. Fish J 2009 Lesbians and Bisexual Women and Cervical Screening: a Review of the Literature Using Systematic Methods. General Medical Council, Stonewall 2007 Protecting Patients: your Rights as Lesbian, Gay and Bisexual People. Murray C, Golombok S 2005a Solo mothers and their donor insemination infants: follow-up at age 2 years. Murray C, Golombok S 2005b Going it alone: solo mothers and their infants conceived by donor insemination. Rahman Q, Cockburn A, Govier E 2006 A comparative analysis of functional cerebral asymmetry in lesbian women, heterosexual women, and heterosexual men. Royal College of Nursing 2003 Lesbian, Gay, Bisexual and Transgender Patients or Clients. Smith G, Bartlett A, King M 2004 Treatments of homosexuality in Britain since the 1950s - an oral history: the experience of patients. Solarz A (ed) 1999 Lesbian Health: Current Assessment and Directions for the Future. MacCallum F, Golombok S 2004 Children raised in fatherless families from infancy: a follow-up of children of lesbian and single heterosexual mothers at early adolescence. Failure to elicit the right diagnosis or to communicate the management plan to a patient in a meaningful way is unlikely to lead to better clinical outcomes. The ideal clinical decision is a product of complex personal characteristics as well as objective research evidence. Formulation of a structured question A well-structured question is essential in order to get the right clinical answer. Searching the literature Approximately 17,000 journals collectively publish over 1 million biomedical articles each year. Identifying relevant articles will require the use of apposite keywords (and their combinations) to search appropriate databases. The first step is to look for an up-to-date professional guideline that has been developed on the basis of systematic appraisal of available evidence. Produced by Bob Phillips, Chris Ball, Dave Sackett, Doug Badenoch, Sharon Straus, Brian Haynes, Martin Dawes since November 1998. PubMed, Embase) No papers Appraise and adopt evidence Consider asking a clinical librarian to search or attempt an Internet search or contact manufacturers/experts regularly convened study groups to address important growth areas within the specialty. These groups have met, evaluated the results of research and conducted in-depth discussions on a variety of topics. These discussions have shaped the development of clinical recommendations which were initially based on consensus. Over the years, this approach has been modified in order to produce genuine evidence-based guidelines. To be effective and relevant, 1018 guidelines must fulfil fthe following three essential criteria. It is generally anticipated that national guidelines will, in turn, be used as a basis for the development of local protocols and guidelines in conjunction with local commissioners and providers of health care as well as service users. These should take into account the specific needs of local service provision and the preferences of the local population. In the absence of credible evidence-based guidelines, the next step would be to search for an up-to-date, good-quality, systematic review. If no systematic reviews are identified, or if reviews are out-of-date, non-systematic or of marginal relevance to the clinical question, it is necessary to continue the literature search for primary studies. Efficient searching for primary literature requires training and practice, and input from an experienced librarian or 1019 68 Evidence-based care in gynaecology information scientist. Pubmed carries three tools that clinicians can employ to optimize their searches, and these are discussed below. It is advisable to start with a sensitive search, and to move to a specific search if the number of hits is unmanageably large on the sensitive search. In appraising a study, it is important to assess the suitability of the research design and methods used in the context of the specific clinical question. Randomized trials provide the best evidence for treatment, but valid evidence for diagnosis, prognosis and causation may be derived from publications based on other study designs (Table 68. Appraising a paper on effectiveness of therapy (randomized controlled trial) A randomized controlled trial reduces the risk of bias (systematic deviations or errors in the results) by minimizing the likelihood of important differences between the treatment and control arms of the study. Evaluation of the literature Once relevant articles have been identified and retrieved, the next step is to select those which are appropriate and methodologically sound. Many papers published in medical journals have serious design flaws, and most are irrelevant for everyday clinical practice. In addition, an overall judgement on the quality of the evidence will need to take two other issues into account: consistency, the extent to which different studies found similar results; and robustness, the extent to which minor alterations in results do not change the conclusions drawn from those data. Checklists for therapeutic and diagnos1020 Evidence-basedmedicineprocesses Table 68. Appropriate methods are: random number tables and computer-generated random numbers 2. Appropriate methods are: opaque envelopes, third party randomization, distant (telephone or Internet) allocation 3. Apart from the experimental and control interventions, are the groups treated equally Does the patient sample include an appropriate spectrum of patients to whom the test will be applied in clinical practice For example, evaluating the inter- or intraobserver reliability or the clinical impact of testing will require designs other than the one employed for accuracy evaluation, and will often need to be judged by other criteria. The sensitivity, specificity, predictive values and prevalence are defined in the marginal cells of Table 68. Thus, sensitivities relate to negative test results, whilst specificities relate to positive test results. Likelihood ratios, which can be calculated from the 2 × 2 table, or derived from sensitivities and specificities as shown in the footnote of Table 68. The likelihood ratio indicates how much a given test result raises or lowers the probability of having the disease. The higher the likelihood ratio of an abnormal test, the greater the value of the test. Conversely, the lower the likelihood ratio of a normal test, the greater the value of the test. Although a guide to the interpretation of likelihood ratios is provided in Table 68. It is an overview of studies using explicit, systematic and therefore reproducible methods to locate, select, appraise and synthesize relevant and reliable evidence. All good systematic reviews have the following five features: 1021 Appraising a diagnostic article the checklist shown in Table 68. It should be noted that this checklist only applies to accuracy studies; there are other aspects of testing that may need to be judged on other crite- 68 Evidence-based care in gynaecology Table 68. Value of test Very useful Moderately useful Somewhat useful Little useful Useless 1. One needs to be mindful of the following three issues when interpreting the findings of systematic reviews and meta-analyses. This could be due to apathy or conflict of interest of the researchers or sponsors, or the disinterest of journal reviewers and editors. Although systematic reviewers are expected to make all efforts to locate published and unpublished data, it is possible that negative studies remain buried, thus biasing the findings of a review. Statistical tests such as funnel plot analysis can indicate the presence of publication and related biases. Heterogeneity can be assessed visually by examining the forest plot, or statistically using tests such as Chi-square, Cochran Q or I2 statistics. Forest plots can be used to plot relative risks, risk differences, odds ratios, mean differences or other summary estimates such as sensitivities, specificities and likelihood ratios. The centre of the diamond represents the pooled estimate and the ends of the diamond represent the 95% confidence interval for the pooled estimate. The lateral edges of the Diamond represent the 95% confidence interval of the pooled result. Many effective treatments come with their own set of problems, including adverse effects, toxicity and operative complications (for surgical interventions). Whilst a full and formal clinical decision analysis or other similar techniques to comprehensively analyse the net benefits and harm with their associated values and costs would be outside the scope (and perhaps need) of most clinicians and their patients, it is essential that an overall assessment of the net balance sheet is made. To make a reliable assessment on this issue, the identified studies need to have reported all clinically relevant outcomes over a reasonable period of time. Often, it is necessary to undertake separate literature searches to identify rarer or long-term adverse outcomes. Although this woman may not have been eligible for the trial, there is probably no reason to believe that the results of the study should not apply to her. Eliciting ideas, concerns and expectations from the patient about the condition and the potential therapeutic interventions that are available is crucial to a successful consultation. Patients may place different values on various outcomes and adverse events; unless these are elicited and incorporated 1023 68 Evidence-based care in gynaecology into the decision-making, satisfaction with the management plan and compliance with therapy are unlikely to ensue. Despite being accessed and appraised systematically, most research findings are currently applied intuitively. These include decision analysis, which provides an intellectual framework for the development of an explicit decision-making algorithm (Lilford et al 1998), and computerized decision support systems. It is possible that their active involvement in the decision-making process may actually increase the effectiveness of the treatment (Coulter et al 1999). Conclusion the purpose of clinical research is to generate new knowledge on how to treat individual patients and how best to deliver healthcare services. Within gynaecology, the recent years have seen considerable progress in strategies aimed at seeking, appraising and applying evidence. A comprehensive approach towards getting research evidence into practice is promoted by National Health Service clinical effectiveness and clinical governance initiatives. What is being challenged is the way in which doctors make clinical decisions and the way in which patients respond to them. As we practice hematology in the clinical laboratory today, this discipline encompasses skill, art, and instinct. For those of us who are passionate about this subject, it is the art of hematology that so intrigues us. Hematology is about relationships: the relationship of the bone marrow to the systemic circulation, the relationship of the plasma environment to the red blood cell life span, and the relationship of the hemoglobin to the red blood cell. For most students, hematology is a difficult subject to master because it forces students to think in an unnatural way. Many students begin a hematology course with little foundation in blood cell morphology. They have no real grasp of medical terminology and few facts concerning blood diseases. Instructors can help the student to develop the morphologic and analytic skills necessary for adept practice in the hematology laboratory. Blood has always been a fascinating subject for authors, poets, scholars, and scientists. References to blood appear in hieroglyphics, in the Bible, on ancient pottery, and in literature. Gradually, scientists such as Galen, Harvey, van Leeuwenhoek, Virchow, and Ehrlich were able to elevate hematology into a discipline of medicine with basic morphologic observations that can be traced to a distinct pathophysiology. Although they had little in the way of advanced technology, their inventions and observations helped describe and quantify cells, cellular structure, and function. Much of what has been learned concerning the etiology of hematologic disease has been discovered since the 1920s; therefore, hematology, as a distinct branch of medicine, is in its early stages. It is a piece of equipment that is stylistically simple in design, yet extraordinarily complex in its ability to magnify an image, provide visual details of that image, and make the image visible to the human eye. The ocular devices on the microscope provide an initial 10 magnification; additional magnification is obtained through the use of three or four different powered objectives. Light is beamed to the image directly or through filters that vary the wavelength. In addition, a diaphragm apparatus is usually located in the base of the microscope. Opening or closing the diaphragm can increase or reduce the volume of light directed toward the image. Significant Parts of the Microscope the eyepieces, or oculars, are located laterally to the microscope base. Most microscopes are binocular and contain two eyepieces, each of which magnifies the diameter of an object placed on the stage to the power of the eyepiece, usually 10. Magnification refers to how large the image can appear and how much of the viewing field can be observed. Objectives on modern microscopes are composed of many lenses and prisms that produce an extremely high quality of optical performance. The iris diaphragm, located below the microscope stage, increases or decreases light from the microscope light source.

In addition medicine 512 buy quetiapine now, there are those which medications for depression generic quetiapine 100 mg otc, while having some features of malignancy treatment zinc toxicity quetiapine 100 mg on line, lack any evidence of stromal invasion symptoms west nile virus cheap quetiapine 300 mg line. The most commonly used classification of ovarian tumours was defined by the World Health Organization (Scully 1999) treatment 1st degree burn generic 100 mg quetiapine mastercard. This is a morphological classification that attempts to relate the cell types and patterns of the tumour to tissues normally present in the ovary. The primary tumours are thus divided into those that are of epithelial type (implying an origin from surface epithelium and the adjacent ovarian stroma), those that are of sex cord gonadal type (also known as sex cord stromal type or sex cord mesenchymal type, and originating from sex cord mesenchymal elements) and those 679 Molecular biology One aspect of ovarian cancer is the somewhat limited understanding of the tumour biology and the natural history of the condition itself. Most patients present with advanced disease and it is often considered that ovarian cancer has a rapid growth phase, hence the late presentation with a short history of symptoms. Some work on symptoms in ovarian cancer suggests that these may be present some time prior 45 Carcinoma of the ovary and fallopian tube Table 45. Includes superficial liver metastases or histologically proven malignant extension to small bowel/omentum Tumour grossly limited to true pelvis with negative nodes, but histologically confirmed microscopic seeding of abdominal peritoneal surfaces Tumour involving one or both ovaries with histologically confirmed implants of abdominal peritoneal surfaces, none exceeding 2 cm in diameter Abdominal implants greater than 2 cm in diameter and/or positive retroperitoneal or inguinal nodes Growth of one or both ovaries with distant metastases. Comparing patients stage for stage and grade for grade, there is no difference in survival in different epithelial types. However, mucinous and endometrioid lesions are likely to be associated with earlier stage and lower grade than serous cystadenocarcinomas. Serous carcinomas have a propensity to bilaterality, ranging from 50% to 90%, but in only 25­ 30% of stage I cases. Pathology of epithelial tumours Epithelial tumours are derived from the ovarian surface epithelium, which is a modified mesothelium with a similar origin and behaviour to the Müllerian duct epithelium, and from the adjacent distinctive ovarian stroma. They account for 50­55% of all ovarian tumours, but their malignant forms represent approximately 90% of all ovarian cancers in the Western world (Koonings et al 1989). Well-differentiated epithelial carcinomas are more often associated with early-stage disease, but the degree of differentiation does correlate with survival, except in the most advanced stages. Diploid tumours 680 Microscopicfeatures the better differentiated tumours have an obvious papillary pattern with unequivocal stromal invasion, and psammoma bodies (calcospherules) are often present. Endometrioid and clear cell carcinomas and, to a lesser extent, mucinous carcinomas may all form papillary structures. At the other end of the spectrum is the anaplastic tumour composed of sheets of undifferentiated neoplastic cells in masses within a fibrous stroma. Occasional glandular structures may be present to enable a diagnosis of adenocarci- Carcinomaoftheovary noma. Mucinous carcinoma Grossfeatures Malignant mucinous tumours comprise approximately 12% of malignant tumours of the ovary. They are typically multilocular, thin-walled cysts with a smooth external surface and contain mucinous fluid. The locules vary in size and the tumour is often composed of one major cavity with many smaller daughter cysts apparently within its wall. Mucinous tumours are amongst the largest tumours of the ovary and may reach enormous dimensions; a cyst diameter of 25 cm is quite commonplace. Some malignant tumours may exhibit obvious solid areas, perhaps with necrosis and haemorrhage. The more advanced carcinomas will show the stigmata of ovarian malignancy, with adhesions to adjacent viscera and malignant ascites. Ovarian adenoacanthoma, with benign-appearing squamous elements, account for almost 50% in some series of endometrioid tumours. Although this is sometimes due to a primary tumour in one site and a secondary tumour at the other, these are usually two separate primary tumours. Clear cell carcinoma Clear cell carcinomas are the least common of the malignant epithelial tumours of the ovary, accounting for 5­10% of ovarian carcinomas (Anderson and Langley 1970). Grossfeatures There is nothing characteristic about the gross appearance of clear cell tumours to distinguish them from other cystadenocarcinomas of the ovary. Most are thick-walled, unilocular cysts containing turbid brown or bloodstained fluid, with solid, polypoid projections arising from the internal surface. Microscopicfeatures Mucinous adenocarcinomas present a variety of histological appearances. They may contain endocervical-like cells alone, intestinal-type cells alone or a combination of the two, but are more often composed of mucinous cells without distinguishing features. The better differentiated examples are composed of cells that retain a resemblance to the tall, picket-fence cells of the benign tumour, although stromal invasion is present. As differentiation is lost, the cells become less easily recognizable as being of mucinous type and their mucin content diminishes. Microscopicfeatures Clear cell carcinomas of the ovary are characterized by the variety of architectural patterns, which may be found alone or in combination in any individual tumour. Endometrioid carcinoma Endometrioid carcinomas are ovarian tumours that resemble the malignant neoplasia of epithelial, stromal and mixed origin that are found in the endometrium (Czernobilsky et al 1970). They are accompanied by ovarian or pelvic endometriosis in 11­42% of cases, and a transition to endometriotic epithelium can be seen in up to 30% of cases. The pathologist must distinguish metaplastic and reactive changes in endometriosis from true neoplastic changes. Transitional cell tumours Transitional cell tumours represent 1­2% of all ovarian tumours and most are benign. The epithelial component resembles urothelium, which may undergo cystic, mucinous or serous metaplasia. The stromal component resembles that of fibromas in benign or borderline lesions, and the malignant counterpart resembles a transitional cell carcinoma. Grossfeatures There is little to characterize an ovarian tumour as being of endometrioid type by naked-eye examination. The internal surface of the cyst is usually rough with rounded, polypoid projections and solid areas, the appearances of which are usually distinct from those of the papillary excrescences seen in serous tumours. Borderline epithelial tumours Approximately 10% of all epithelial tumours of the ovary are borderline tumours, of which 30% are of the mucinous type, followed by the serous type. The histological diagnosis of borderline malignancy can be difficult, particularly in mucinous tumours. These show varying degrees of nuclear atypia and an increase in mitotic activity, multilayering of neoplastic cells and formation of cellular buds, but no invasion of the stroma. Most 681 Microscopicfeatures Endometrioid carcinomas resemble the endometrioid carcinomas of the endometrium. Endometrioid carcinomas of the ovary are more likely to be papillary than primary endometrial carci- 45 Carcinoma of the ovary and fallopian tube borderline tumours remain confined to the ovaries and this may account for their much better prognosis. Peritoneal lesions are present in some cases and although a few are true metastases, many do not grow and even regress after removal of the primary tumour. Surgical pathological stage and subclassification of extraovarian disease into invasive and non-invasive implants are the most important prognostic indicators for serous borderline tumours, with survival for advanced-stage serous tumours with noninvasive implants being 95. Diagnosis the symptoms associated with ovarian cancer have come under particular scrutiny over the last few years. The main symptoms are abdominal pain, bloating, postmenopausal bleeding, weight loss and loss of appetite (Bankhead et al 2005, Goff et al 2007). In approximately 10% of cases, there are no symptoms and the disease is found serendipitously, such as following a scan for back pain. Once there is a clinical suspicion of ovarian cancer, investigations can facilitate in defining the risk of malignancy, which will ensure the patient is referred appropriately. This is important as the expertise of the operator will influence the outcome and success of achieving tumour clearance (Junor et al 1999, Tingulstad et al 2003, Earle et al 2006). These, in conjunction with the menopausal status of the patient, enable calculation of the risk of malignancy. However, it is the only available mechanism at present to triage patients to appropriate specialist centres of care. Surgery Surgery remains the main and internationally agreed primary intervention in suspected ovarian cancer. The objectives of surgery are manifold: to obtain a histological diagnosis, to undertake correct staging of the disease, to remove all or as much tumour as possible, and to alleviate symptoms. The procedures commonly undertaken are hysterectomy, bilateral salpingo-oophorectomy, omentectomy, retroperitoneal lymph node sampling, sampling of peritoneal fluids and other biopsies as deemed necessary. Whilst removing all visible disease seems logical, optimum debulking is also undertaken. This surgery is performed to ensure that no residual disease left in situ is greater than 1 cm in diameter. This is a unique approach for an intra-abdominal carcinoma and the historic reason is interesting. In the 1970s, Griffiths published a paper relating survival in ovarian cancer to the amount of residual tumour left in the abdominal cavity. The original publication related to a retrospective series of just over 100 women, which indicated the preferable survival pattern in women with tumour residuum of less than 1. A subsequent prospective study on 26 patients was published, some of whom had undergone primary surgery previously, and some who had also been exposed to chemotherapy (Griffiths et al 1979). Following aggressive surgery, the preferable survival pattern was associated with those who had the lesser tumour residuum. Thus, the optimum debulking procedure became embedded within clinical practice, and many subsequent reports have confirmed this association. Notably, no prospective randomized trials were ever performed to ascertain the validity of this approach, and debate continues about whether those amenable to optimum Table 45. Risk of cancer (%) <3 20 75 682 Carcinomaoftheovary debulking are also those with the most chemosensitive tumours. Hunter et al (1992) reported on a cohort of over 6000 women with ovarian cancer, and concluded that the use of platinum agents rather than surgery was a more important factor in enhancing survival outcome. The more recent meta-analysis by Bristow et al (2002) associated the residuum of tumour with survival, and showed that each 10% increase in maximal cytoreductive surgery was associated with a 4. Of course, the strength of meta-analyses based on essentially large non-randomized series does permit some questioning of the weight of the final conclusions. Interestingly, a recent randomized trial of complete para-aortic and pelvic lymphadectomy in advanced ovarian cancer compared with excision of enlarged nodes alone did not reveal any survival benefit (Panici et al 2005). Nowadays, there is a new approach of supraradical surgery in order to achieve total macroscopic clearance, and these operations can include resection of diaphragmatic lesion, hepatic and splenic metastases, and multiple bowel resections. Patients are carefully selected for these operations, and it remains to be proven whether this radical surgery enhances outcome. An evidence base for practice is always welcome as this can at least attempt to ensure best practice and indeed facilitate patient counselling. These studies compared standard upfront surgery followed by platinum-based chemotherapy (six cycles) with neoadjuvant chemotherapy (three cycles) then surgery and then a further three cycles of platinum. These studies are the first randomized trials to address the primary interventions in ovarian cancer ( The relapse rate in women who only have a cystectomy is estimated to be approximately 25%, but if a full oophorectomy has been performed, the relapse rate falls to 10­15%. When the patient has completed her family, the role of further surgery is unclear. The relapse rate is small, and there is no evidence that completion surgery would reduce this further. It is probably best that expert counselling of patients is undertaken and each case should be managed individually. Interventional debulking surgery When optimum debulking is not achieved at the primary operation, a second attempt may be worthwhile. The smallest trial (Redman et al 1994) was stopped prematurely as no advantage was noted at the interim analysis. The second study (van der Burg et al 1995) randomized over 300 women who had primary suboptimal surgery (>1 cm residuum) and were chemosensitive to platinum. The study showed a 6 month improvement in median survival in those having a second operation (performed after three of six cycles of platinum treatment). This was the first randomized study published supporting the concept of optimum debulking as a procedure influencing survival in ovarian cancer. Fertility-sparing procedures Whilst radical surgery does relate to the majority of situations, fertility-sparing surgery is advocated in younger women (<40 years) or women who have not completed their families. There are many reasons for this, but primarily younger patients tend to have the rarer ovarian tumours, such as borderline or germ cell tumours (the latter of which are very chemosensitive). In this situation, the affected ovary/cystic areas should be removed and a formal staging procedure - with preservation of fertility - should be undertaken. Naturally, if a standard tumour is found histologically, the option of further surgery can be discussed with the patient. This was during an era when therapy was continued for over 12 months, and it became evident that iatrogenic malignancies were developing with long-term treatment. These are more common in younger patients, and are often only diagnosed at histopathology as the appearances can often be similar to benign ovarian cysts. The 45 Carcinoma of the ovary and fallopian tube Surgery at relapse With disease persisting after chemotherapy, or occurring within 6 months of completion of chemotherapy, such disease is deemed resistant and surgery has little role, other than palliation of symptoms. A series of retrospective studies have identified a group of women in whom surgery at relapse may prolong survival (Jänicke et al 1992, Zang et al 2004, Salani et al 2007). These patients had optimum debulking at primary surgery, a disease-free interval of 12 months and were less than 60 years of age. In this population, there was a greater chance of achieving optimum debulking at second surgery. From this cohort of 267 women, a 79% prediction rate was achieved with the following variables: good performance status, original optimum debulking, early stage of disease at presentation and no ascites at relapse. With good predictive models, individuals who may gain survival advantages with surgery at relapse can be identified and will require chemotherapy in conjunction with surgery. It is also well recognized that chemotherapy is more effective for longer disease-free intervals (Blackledge et al 1989); hence, tumour biology, not just surgery, may play an important role. Only a prospective trial will determine the true influence of surgery in this context. Advocates of the possible survival benefits remained, and in 1996, Alberts et al reported on an randomized controlled trial whereby intraperitoneal cisplatin was given in conjunction with intravenous therapy, and the median survival was increased from 40 to 48 months. There were known side-effects and there was no general acceptance of this type of therapy, mainly due to this and the more complicated manner of administration of cytotoxics compared with intravenous access. However, two further trials (Markman et al 2001, Armstrong et al 2006) which incorporated paclitaxel into the therapy showed increased median survival rates of over 10 months in the intraperitoneal arm.

The diagnosis is obtained by symptoms (see below) and urodynamic investigations symptoms for bronchitis purchase quetiapine in india, and should be based on repeated measurements to confirm abnormality medicine 2 cheap 50 mg quetiapine with visa. Abnormally slow urine flow rates medications derived from plants order quetiapine 100 mg, as determined by uroflowmetry treatment example cheap 300 mg quetiapine, are best referenced to nomogram charts which provide a range of normality for urinary flow rates in relation 2011 Elsevier Limited treatment algorithm purchase 50 mg quetiapine amex. To encourage the use of these charts, a larger version of the original charts has been republished recently (Haylen et al 2008a). Upper limits of postvoid residuals of 30 ml (using immediate ultrasound assessment) and 50­100 ml (using urethral catheterization) have been proposed (Haylen et al 2010). Incidence Depending on definition and type of clinic, voiding difficulty in women presenting to a urology or urogynaecology clinic has a variable prevalence ranging from 14% (when using a strict definition based on multiple variables including low flow, high pressure and increased postvoid residual) (Massey and Abrams 1988) to 39% (using a postvoid residual of 30 ml or more) (Haylen et al 2007). Symptoms and Clinical Effects When present, symptoms of voiding difficulty are nonspecific and include hesitancy, slow stream, straining to void, feeling of incomplete bladder emptying, spraying, need to immediately revoid, position-dependent micturition. Chronic retention of urine this is defined as a non-painful bladder where there is a chronic high postvoid residual (Haylen et al 2010). The risk of acquiring bacteriuria relates to the duration of catheterization, and ranges from 4% to 7. The majority of patients on long-term clean catheterization have bacteriuria, and about one-third of them require intermittent treatment with antibiotics due to symptomatic infection (Lapides et al 1976). When patients are discharged with a catheter, daily nursing care in the community is required. In the long term, inability to void may lead to profound alterations in quality of life and have serious psychological effects. Increased urethral rigidity may increase the likelihood of causing obstruction, and reduced detrusor contractility may reduce the ability to cope with it. It is not clear whether the menopause has an effect on voiding which is distinct from age. There are no studies showing that the menopause per se has a deleterious effect on voiding function. However, the distal urethra is oestrogen dependent and therefore susceptible to postmenopausal atrophic changes; the reduction in urethral functional length seen after the menopause is likely to be a manifestation of this process. There is evidence that these changes are more pronounced in a minority (18%) of postmenopausal women (Smith 1972). These women may have increased urethral rigidity and may be predisposed to the development of voiding dysfunction should they undergo pelvic or antiincontinence surgery. Postoperative voiding dysfunction Pelvic surgery Temporary voiding difficulty is commonly observed after pelvic surgery. In the immediate postoperative period, many reversible factors are likely to play a role. Atropine and other anaesthetic reversal agents with anticholinergic effects (some with a half-life of 3­4 days) may reduce detrusor contractility. Opiates might reduce bladder sensation, pain might inhibit perineal relaxation, and bladder overfilling might depress detrusor contractility. In addition, bruising and oedema can also depress bladder contractility and cause temporary obstruction. Spinal anaesthesia depresses voiding function for up to 4­8 h, depending on whether short- or long-acting agents are used. Epidural anaesthesia may depress voiding function for 14­16 h, especially when supplemented by opioids in the epidural space. With regards to specific procedures, clinical and urodynamic studies have found no evidence of increased voiding dysfunction in the short term after vaginal hysterectomy with anterior colporrhaphy performed at the same time (Stanton et al 1982), and after abdominal hysterectomy (Wake 1980). Also, no differences in bladder function were observed in a randomized study comparing total with subtotal hysterectomy (Thakar et al 2002). However, a history of previous hysterectomy has been associated with increased risk of voiding difficulty, possibly due to nerve dysfunction (Dietz et al 2002). Extensive pelvic surgery might lead to denervation and prolonged or permanent voiding difficulty. Radical hysterectomy has been shown to lead to prolonged voiding difficulty in one-quarter of patients (Scotti et al 1986) due to neuropathic dysfunction. Effects of age on voiding function the incidence of voiding dysfunction in women increases with age (Haylen et al 2008b), and the process of ageing may decrease detrusor contractility and increase urethral rigidity. Urodynamic studies have shown that both peak flow rate and detrusor pressure during voiding decrease with advancing age. Older women are also more likely to strain abdominally during voiding and to have higher residual urine volumes (Malone-Lee and Wahedna 1993). With advancing age, anatomical changes occur in the bladder wall leading to reduced bladder contractility. In most cases, postoperative voiding problems are short term, but they can persist in the long term and lead to profound alterations in quality of life. This may be due to failure to obtain an early diagnosis, progressive effects of scarring or onset of new pathology. Women with stress incontinence may already have some impairment of voiding function, which may make them more vulnerable to the obstructive effects of surgery. This is suggested by differences in several urodynamic (voiding) variables noted in these women. For example, in contrast with normal women, women with stress incontinence are more likely to strain during voiding, and to initiate voiding with a Valsalva manoeuvre as opposed to pelvic relaxation. It is not clear whether this is due to the lower mean urethral pressure of women with urodynamic stress incontinence, or whether there is a real impairment of detrusor muscle function in these women. Postoperative voiding disorders have been reported to occur after most operations for stress incontinence. Prolonged voiding dysfunction is uncommon after urethral injectables, although an incidence of 5% has been reported (Khullar et al 1997). The colposuspension operation leads to postoperative voiding dysfunction in a mean of 12. Laparoscopic and open colposuspension have the same incidence of postoperative voiding difficulty (Carey et al 2006). In addition to temporary factors, as detailed above, permanent factors might be relevant from the outset. An intrinsically weak detrusor may be unable to cope with even the slightest increase in outflow resistance. Prolapse surgery Short-term voiding difficulty is common after vaginal surgery for prolapse. In a large series of women undergoing such surgery, urinary retention (defined as a postvoid residual of 200 ml after removal of the catheter the day after the operation) occurred in 29% of women, with 9% experiencing retention for more than 3 days (Hakvoort et al 2009). In another study, 11% of women required catheterization at home after discharge from hospital (Vierhout 1998). However, no patients experienced long-term voiding difficulty (Vierhout 1998, Hakvoort et al 2009). Performing a levator muscle plication (as part of a posterior colporrhaphy) and a Kelly suburethral plication (as part of an anterior colporrhaphy) can increase the risk of postoperative retention (Hakvoort et al 2009). Prolonged catheterization may therefore be preferable in individual cases when there is an increased risk of postoperative voiding difficulty. However, when using strict criteria [similar to those proposed recently by the International Urogynecological Association/International Continence Society (2010)], up to 43% of women have been shown to have some degree of voiding difficulty after delivery (Ramsay and Torbet 1993). Recognized risk factors for voiding difficulty in the immediate postpartum period are primiparity, instrumental delivery, epidural analgesia, prolonged labour, perineal trauma and poor bladder management resulting in overdistension. The lithotomy position commonly used to perform gynaecological procedures can potentially precipitate lumbar disc prolapse (Choudhari et al 2000). Neurological disease the effects of neurological disease on bladder function and the upper renal tracts depend on the site of the lesion(s). Interruption of the mainly inhibitory pathways from the cerebral cortex to the pontine micturition centre. Reported symptoms include frequency, urgency, urge incontinence and voiding difficulty. In a small minority of women, bladder symptoms are the presenting manifestation of the disease. They include neurogenic detrusor overactivity (with or without detrusor sphincter dyssynergia) and, less frequently, detrusor acontractility. Prompt recognition and management of voiding dysfunction in these patients has made this a rare occurrence. In patients with symptomatic lumbar disc prolapse, urodynamic studies have shown voiding difficulty due to reduced detrusor contractility in approximately one-quarter of cases (Bartolin et al 1998). Compression occurs more often in a posterolateral direction but may also be central. Patients may report a long history of low back pain, or voiding difficulty may be the first or only symptom. Compression of the sacral nerves can lead to cauda equina syndrome, characterized by voiding difficulty, saddle anaesthesia, bilateral sciatica and low back pain. Physical examination in these cases shows reduced sensation in the saddle and perianal area. Despite this, voiding 840 Diabetes Bladder dysfunction is relatively common in diabetic women and has been reported in 22% of women attending a diabetic clinic (Yu et al 2004). It is due to peripheral and autonomic neuropathy, leading to reduced bladder sensation and contractility. The classical features of diabetic cystopathy are an insidious onset with impaired bladder sensation and progressive voiding difficulty. Detrusor overactivity also occurs frequently, perhaps as a sign of cortical or spinal involvement. Psychological factors Psychological factors may cause or contribute to voiding dysfunction by centrally mediated, unconscious inhibition Investigations of either detrusor contraction, pelvic floor relaxation or both. True psychogenic urinary dysfunction is uncommon but is usually accompanied by obvious psychological or psychiatric features, such as conversion disorder (hysteria) and anxiety. The time of recovery after such injury has not been investigated in women, but is likely to depend on the cause of the bladder overdistension, the amount of fluid retained and the time of retention. Infrequent voiding can lead to chronic bladder overdistension and voiding difficulty, but evidence for this is lacking. Others In addition to anaesthetics and analgesics, drugs with anticholinergic action. However, antimuscarinic therapy was not found to worsen voiding function in a series of women with overactive bladder and mild voiding difficulty (postvoid residuals of 100 ml) (Robinson et al 2003). Intravescical Botox for treatment of the overactive bladder has been shown to increase postvoid residuals, but retention requiring self-catheterization is uncommon (Duthie et al 2007), with one large series reporting an incidence of 4% (Schmid et al 2006). Idiopathic bladder neck obstruction this is a poorly defined, infrequent condition characterized by failure of the urethral sphincter to relax, and possibly hypertrophy, with urodynamic variables showing high pressure and low flow in the absence of neurological or urological abnormality. There is a suggestion that -blockers may be beneficial in these patients (Athanasopoulos et al 2009). Severe prolapse of the posterior vaginal compartment has also been shown to have a negative effect on voiding function (Myers et al 1998, Dietz et al 2002). Kinking of the urethra (by a prolapse of the anterior vaginal compartment) or direct pressure on the urethra and bladder neck (by a prolapsing uterus or posterior vaginal compartment) are possible mechanisms of obstruction, leading to voiding difficulty. Overactive bladder symptoms and occult stress incontinence often coexist with voiding difficulty in women with pelvic organ prolapse (Romanzi et al 1999). Prolapse correction with a pessary has been shown to improve voiding function in the majority of women with both pathologies (Romanzi et al 1999). In most women with severe prolapse and voiding difficulty, corrective surgery restores voiding successfully (Fitzgerald et al 2000, Liang et al 2008). Investigations Uroflowmetry In practical terms, most women with voiding difficulty require simple flow studies with measurement of post void residual urine with catheters or ultrasound. Although there are no clear-cut values, low peak flow rates of less than 12­20 ml/s have been used traditionally, with voided volumes of 150­200 ml. Postvoid residual urine volumes of more than 50­100 ml were arbitrarily considered abnormal. It is now suggested that volume-specific nomograms should be used, with abnormal flow defined as under the 10th centile (International Urogynecological Association/ International Continence Society 2010). Upper limits of postvoid residuals of 30 ml using immediate ultrasound assessment and 50­100 ml using urethral catheterization have been proposed, taking into account renal input of 1­14 ml urine/min (International Urogynecological Association/International Continence Society 2009). Studies of bladder function after overdistension, mostly in animal models and in men with retention associated with prostatic hypertrophy, have shown reduced bladder contractility. Flow rate (ml/s) Pabd cmH2O Pves cmH2O Pdet cmH2O An alternative screening method, using a peak flow rate of less than 15 ml/s and/or postvoid residual urine volume greater than 50 ml with a minimum total bladder volume of 150 ml before voiding, has been shown to correlate well with the Liverpool nomograms (Haylen et al 1989), and could be used if nomogram charts are not available (Costantini et al 2003). More complex urodynamic studies are advisable in the presence of coexistent overactive bladder symptoms, neurological disease or when the cause of voiding difficulty is unclear. Obstruction after incontinence surgery is therefore diagnosed purely on the basis of a clear-cut temporal relationship between surgery and the onset of persistent voiding difficulty. Pressure­flow studies the assessment of voiding difficulty in the female, as in the male, relies on pressure­flow studies. In men, low flow in the presence of high detrusor pressure usually signifies obstruction (using nomograms), but this is less clear in women. In an attempt to obtain cut-off values for the definition of obstruction in women, urodynamic studies have been performed in obstructed patients and compared with controls. The practical value of these observations remains unclear, as the clinical and radiological criteria used to define obstruction are arbitrary. Symptoms are often nonspecific, and anatomical evidence of obstruction is often missing using videourodynamics or cystourethroscopy (Groutz et al 2000). In contrast, other authors do not rely heavily on strict urodynamic criteria for the diagnosis of obstruction, and suggest that relative obstruction can exist in the presence Videourodynamics More detailed studies on patients with prolonged postoperative voiding difficulty can be performed using videourodynamics. Cystourethroscopy this has been reported to reveal urethral strictures or fibrosis in approximately half of women who had suspected obstruction during pressure­flow studies (Groutz et al 2000).

Various approaches have been tried in order to achieve this aim withdrawal symptoms 300 mg quetiapine sale, including clinical medications used to treat bipolar disorder best 200 mg quetiapine, chemoprevention and prophylactic surgery medicine plies quetiapine 100 mg order online. Large clinical trials are currently underway the treatment 2014 buy quetiapine amex, investigating the potential of such screening programmes in both low- and high-risk populations symptoms of pregnancy order quetiapine paypal. Chemoprevention has particularly focused on the use of the oral contraceptive pill, which has been shown to reduce the risk of ovarian cancer in both low- and high-risk populations (Hankinson et al 1992, McLaughlin et al 2007). The timing of surgery is dependent on the individual, their fertility requirements, the potential surgical morbidity and long-term hormonal sequelae. The current advice is that surgery should be considered once a woman reaches 35 years of age. Prophylactic surgery, however, does not completely remove the risk of malignancy since women in some highrisk populations are still at risk of developing primary peritoneal carcinoma (Finch et al 2006). The pathological evidence for the progression of type I tumours arises from studies which have shown the frequent occurrence of a transition or coexistence between malignant and benign areas in mucinous ovarian cancers, and between low-grade serous cancers and areas of borderline change (Malpica et al 2004). Also, borderline serous tumours typically recur as low-grade serous cancers (Crispens et al 2002). Cervical cytology can prevent 75% of cervical cancers by enabling early detection and treatment. Colposcopy is subjective, has significant inter- and intraobserver error, and a sensitivity for high-grade disease of only 50%. Atypical endometrial hyperplasia should be managed as if cancer, as up to 45% of cases will be found to have endometrial cancer at hysterectomy. Ferenczy A, Gelfand M 1989 the biologic significance of cytologic atypia in progestogen-treated endometrial hyperplasia. Fukunaga M, Nomura K, Ishikawa E, Ushigome S 1997 Ovarian atypical endometriosis: its close association with malignant epithelial tumours. Jimbo H, Yoshikawa H, Onda T, Yasugi T, Sakamoto A, Taketani Y 1997 Prevalence of ovarian endometriosis in epithelial ovarian cancer. Kyrgiou M, Koliopoulos G, Martin-Hirsch P, Arbyn M, Prendiville W, Paraskevaidis E 2006 Obstetric outcomes after conservative treatment for intraepithelial or early invasive cervical lesions: systematic review and meta-analysis. Sasieni P, Adams J 1999 Effect of screening on cervical cancer mortality in England and Wales: analysis of trends with an age cohort model. Smith-Bindman R, Kerlickoske K, Feldstein V et al 1998 Endovaginal ultrasound to exclude endometrial cancer and other endometrial pathologies. Although the incidence of cervical cancer has decreased in industrialized countries in the past 20 years, it still remains a major problem in the developing world. Carcinoma in situ is most common in women aged 35­39 years, while the incidence of cervical cancer is highest in women aged 30­34 years (17/100,000). Only 30% of cervical cancers are detected by screening, and the majority of cases occur in women who have never had a smear test or who have not been regular participants in the screening programme. Promiscuity, a sexual partner with promiscuous sexual behaviour and early age at first sexual intercourse have all been associated with a high risk of cervical cancer. The early genes are expressed when the virus enters the host cell and encodes those proteins that regulate viral replication and the interaction with the host cell. Cofactors Cigarette smoking Cigarette smoking has been linked with a higher risk of cervical cancer and has been demonstrated to be an independent risk factor (Winkelstein 1990, Kapeu et al 2009). A recent meta-analysis confirmed that smoking is an independent risk factor for squamous cell cervical cancer, but failed to demonstrate the same for adenocarcinoma (Berrington de González et al 2004). Immunity has been demonstrated for at least 5 years and long-term follow-up studies are ongoing. Natural History and Spreading Pattern of Cervical Cancer Cervical cancers can arise from the ectocervix or endocervix. Most ectocervical cancers are squamous in histology, and endocervical cancers arise from squamous and columnar epithelium. All cervical cancers are preceded by a preneoplastic stage (cervical intraepithelial neoplasia and cervical glandular intraepithelial neoplasia). Cervical cancers may present as an exophytic growth or an endophytic expansion without any visible tumour on the surface of the cervix. The cancer can spread directly to the parametria, vagina, corpus, bladder and rectum. Primary sites of lymphatic spread are the external and internal iliac and obturator lymph nodes, while secondary sites are the presacral, common iliac and para-aortic lymph nodes. Immunodeficiency It has been observed that patients with immunodeficiency disorders, those on immunosuppressive therapy and those 39 Cancer of the uterine cervix Clinical Presentation Patients with cervical cancer may be symptomatic or asymptomatic. Symptoms associated with cervical cancer are often non-specific, such as postcoital bleeding, intermenstrual bleeding, postmenopausal bleeding, excessive foul-smelling vaginal discharge and pelvic pain. Patients with locally advanced cancer can present with loin pain secondary to obstructive uropathy; sciatic pain due to compression of pelvic nerves; and fistula formation between the rectum, vagina and bladder. The positive predictive value of postcoital and intermenstrual bleeding for the diagnosis of cervical cancer in younger women is very low (Shapley et al 2006). Only 2% of patients with postcoital bleeding will be diagnosed with cervical cancer (Shapley et al 2006). Asymptomatic patients are usually referred with either abnormal appearance of the cervix, a suspicious smear or an incidental discovery of cervical cancer on loop biopsy performed for treatment of intraepithelial neoplasia. Laparoscopic para-aortic lymph node sampling Laparoscopic para-aortic lymph node sampling has been performed to assess the para-aortic lymph nodes; however, the only prospective randomized study failed to confirm therapeutic benefit (Lai et al 2003). The detection of micrometastasis in the para-aortic nodes has been used to modify radiation treatment fields (Leblanc et al 2007). Detailed examination is essential, including physical examination to exclude any obvious peripheral lymphadenopathy, speculum examination to assess the size of tumour and vaginal extension, and a rectovaginal examination to assess the size of cervical tumour and its extension to the parametria, vaginal vault and rectal mucosa. In cases of suspected bladder and bowel involvement, an examination under anaesthesia with cystoscopy and rectosigmoidoscopy is required, and biopsies are obtained for histological confirmation. Multidisciplinarydiscussion All patients must be discussed by a multidisciplinary team of gynaecological oncologists, clinical oncologists, medical oncologists, radiologists, pathologists and clinical nurse practitioners. When doubt exists regarding the stage of a particular cancer, the earlier stage should be chosen. Surgical staging in cervical cancer is an issue that continues to generate discussion. Should the histological findings and cross-sectional imaging influence the process of staging A consensus statement from the International Gynecological Cancer Society meeting in 2006 reported as follows (Odicino et al 2007). Nearly 80% of cervical cancer patients are diagnosed in the developing world, and the majority are diagnosed in late stages and are not suitable for surgical staging. Information is obtained regarding the tumour histological type, differentiation, size (breadth × horizontal width × depth of invasion), pattern of invasion (uni- or multifocal, pushing or spreading), and presence or absence of lymphovascular space invasion. Imagingincervicalcancer Although cancer of the uterine cervix is staged clinically worldwide, a more precise assessment of the extent of cancer by cross-sectional imaging results in more tailored management. Note the interruption of the high-signal-intensity ring around the cervix on the right side (arrow). The gross appearance of adenocarcinomas is similar to squamous lesions; however, nearly 15% of patients present with clinically non-apparent lesions due to the endophytic expansion of the cancer (barrelshaped cervix). The most common types are the endocervical (mucinous), intestinal and endometrioid variants. It is a common clinical dilemma to distinguish between endocervical cancer with extension to the uterus and endometrial cancer of isthmic origin involving the cervical stroma. A dedifferentiated form of adenosquamous carcinoma is the glassy cell carcinoma, which tends to occur in young patients and has a particularly aggressive clinical behaviour with poor outcome. Neuroendocrine cervical carcinomas are rare histological subtypes, accounting for less than 5% of cervical cancers. They are characterized by highly aggressive clinical behaviour, manifesting as early nodal and distant diseases in more than half of patients. Neuroendocrine cervical carcinomas are similar to the neuroendocrine cancers of the lung, both clinically and histologically. There are four subgroups: classical carcinoid, atypical carcinoid tumour, neuroendocrine large cell carcinoma and neuroendocrine small cell (oat cell) carcinoma (Albores-Saavedra et al 1997). Clear cell carcinomas of the cervix are rare and have been linked with diethylstilboestrol exposure in utero. Surgery is therefore the cornerstone of management, followed by chemoradiotherapy. Critical analysis of the data on the role of parametrectomy and pelvic lymphadenectomy has changed the practice significantly, and narrowed the indication for the radical operation. The clinical appearance is usually exophytic, but it is not uncommon to have an endophytic tumour with a normal ectocervix. Histologically, three types of squamous cell carcinoma can be distinguished: large cell keratinizing, large cell non-keratinizing and small cell squamous carcinoma. Adenocarcinoma is the second most common histological type and represents 20% of cervical cancers. If therapeutic conization or trachelectomy is performed, the minimum desired surgical margin of clearance is 10 mm. Intraoperative frozen section analysis can exclude the presence of cancer at the surgical margin. Novel developments in surgical technique, such as fertility-sparing surgery (trachelectomy), laparoscopic radical hysterectomy, pelvic lymphadenectomy and para-aortic lymphadenectomy, have been developed and are practised increasingly. Sentinel node biopsy in cervical cancer is also being explored (Levenback et al 2002). Surgical treatment which involves radical hysterectomy with pelvic lymphadenectomy has potential advantages in younger women by preserving ovarian function and avoiding radiotherapy-related late complications. Careful preoperative selection of patients for radical surgery avoids subjecting them to double treatment (surgery followed by adjuvant treatment). If adverse histological factors are found in the surgical specimen, postoperative chemoradiotherapy is required (Table 39. Cold-knife cone biopsy is the preferred technique to prevent cauterized margins, which may affect histological assessment. The technique is simple and involves a circular incision at the cervicovaginal junction, dissection of the vesicocervical space anteriorly and the pouch of Douglas posteriorly. Modified radical hysterectomy: the uterus, paracervical tissues and upper vagina (1­2 cm) are removed after dissection of the ureters to the point of their entry to the bladder. The uterine arteries are ligated at the site of crossing the ureters, and the medial half of the parametria and proximal uterosacral ligaments are resected. Radical hysterectomy: en-bloc removal of the uterus with the upper third of the vagina along with the paravaginal and paracervical tissues. The uterine vessels are ligated at their origin, and the entire width of the parametria is resected bilaterally. Partial exenteration: the terminal ureter or a segment of the bladder or rectum is removed, along with the uterus and parametria (supralevator exenteration). Neoadjuvant chemotherapy has been used with a rationale of reducing tumour bulk prior to surgery or radiotherapy, but no survival benefit has been demonstrated over conventional radiotherapy (Sananes et al 1998, Benedetti-Panici et al 2002). Laparoscopic radical hysterectomy is a novel approach with similar efficacy and recurrence rates to open radical hysterectomy, but with reduced blood loss and woundrelated complications, and a shorter recovery period (Abu-Rustum et al 2003, Ghezzi et al 2007). Therefore, for women under 45 years of age with cervical cancer, the ovaries can usually be preserved and can be transposed into the paracolic gutters out of the pelvis (outwith the potential radiation field). Conventionally, patients with adenocarcinoma are offered salpingo-oophorectomy; however, isolated ovarian metastasis in the absence of adverse pathological features is rare. The ovarian failure rate after transposition is 50% (Anderson et al 1993, Feeney et al 1995). Surgicaltechniques Radical hysterectomy Radical hysterectomy was classified into five types by Piver et al in 1974 based upon the site of ligation of the uterine vessels and the radicality of parametrial resection. The Surgery Committee of the Gynecological Cancer Group of the European Organization for Research and Treatment of Cancer have produced, approved and adopted a revised version of the original Piver classification (Table 39. Any bulky para-aortic nodes should also be resected, given that radiation therapy cannot sterilize metastatic nodes larger than 2 cm in diameter (Hacker et al 1995). Complications of radical hysterectomy the complications of radical hysterectomy can be related directly or indirectly to the surgical procedure. Direct com590 plications can arise from injury to bladder, ureters, rectum, pelvic vessels and nerves, and these have to be managed intraoperatively. Indirect complications can result from devascularization of the ureters and can manifest as urogenital fistulae, usually 2­3 weeks postoperatively. Pelvic lymphadenectomy can result in formation of lymphocysts and development of leg lymphoedema. Damage to the obturator nerve during lymphadenectomy impairs the function of the adductor muscles. As maternal age at first childbirth has increased progressively, it is not uncommon to find women with cervical cancer who have not yet started or completed their families (Cancerstats 2003). The bladder pillars are divided inferiorly, further releasing the bladder and ureters superiorly. Cervical cerclage suture is inserted, the vagina is sutured in a circular fashion around the cervix and a new, vagino­ isthmic junction is created. Radical trachelectomy can also be performed abdominally and laparoscopically (Cibula et al 2005). The abdominal approach is suitable in women with poor vaginal access, when the cervix is flush with the vault or in the presence of a large, exophytic cervical growth (Cibula et al 2008). Pelvic lymphadenectomy is usually performed laparoscopically, but can also be performed by an extraperitoneal approach. Common sites of recurrence are the vagina, parametrium, pelvic sidewall and para-aortic lymph nodes. In the presence of poor histological prognostic factors, additional treatment may be recommended, including completion radical hysterectomy if the margins of clearance are less than 1 cm, or chemoradiation if more than one poor prognostic factor is present (Table 39.

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