A comparative study of radical vulvectomy and modified radical vulvectomy for the treatment of invasive squamous cell carcinoma of the vulva

Pelvic floor dysfunction in gynecologic cancer survivors

Pelvic floor dysfunction (PFD) is a common complication in gynecologic cancer survivors (GCS) and is now a worldwide medical and public health problem because of its great impact on the quality of life of GCS. PFD after comprehensive gynecologic cancer treatment is mainly reflected in bladder function, rectal function, sexual dysfunction and pelvic organ prolapse (POP), of which different types of gynecologic cancer correspond to different disease incidence. The prevention strategies of PFD after comprehensive gynecologic cancer treatment mainly included surgical treatment, physical therapy and behavioral guidance, etc. At present, most of them still focus on physical therapy, mostly using Pelvic Floor Muscle Training (PFMT) and multi-modal PFMT treatment of biofeedback combined with electrical stimulation, which can reduce the possibility of PFD after surgery in GCS to some extent. This article reviews the clinical manifestations, causes and current research progress of prevention and treatment methods of PFD after comprehensive treatment for GCS.

Prognostic factors for local recurrence of squamous cell carcinoma of the vulva: A systematic review

BACKGROUND

In patients treated for early-stage squamous cell vulvar carcinoma local recurrence is reported in up to 40% after ten years. Knowledge on prognostic factors related to local recurrences should be helpful to select high risk patients and/or to develop strategies to prevent local recurrences.

OBJECTIVE

This systematic review aims to evaluate the current knowledge on the incidence of local recurrences in vulvar carcinoma related to clinicopathologic and cell biologic variables.

DATA SOURCES

Relevant studies were identified by an extensive online electronic search in July 2017.

STUDY ELIGIBILITY CRITERIA

Studies reporting prognostic factors specific for local recurrences of vulvar carcinoma were included.

STUDY APPRAISAL AND SYNTHESIS METHODS

Two review authors independently performed data selection, extraction and assessment of study quality. The risk difference was calculated for each prognostic factor when described in two or more studies.

RESULTS

Twenty-two studies were included; most of all were retrospective and mainly reported pathologic prognostic factors. Our review indicates an estimated annual local recurrence rate of 4% without plateauing. The prognostic relevance for local recurrence of vulvar carcinoma of all analyzed variables remains equivocal, including pathologic tumor free margin distance <8mm, presence of lichen sclerosus, groin lymph node metastases and a variety of primary tumor characteristics (grade of differentiation, tumor size, tumor focality, depth of invasion, lymphovascular space invasion, tumor localization and presence of human papillomavirus).

CONCLUSIONS

Current quality of data on prognostic factors for local recurrences in vulvar carcinoma patients does not allow evidence-based clinical decision making. Further research on prognostic factors, applying state of the art methodology is needed to identify high-risk patients and to develop alternative primary and secondary prevention strategies.

Pelvic floor disorders in women with gynecologic malignancies: a systematic review

INTRODUCTION AND HYPOTHESIS

Pelvic floor disorders (PFDs) negatively affect quality of life in the general population, and their prevalence in gynecologic cancer survivors has not been systematically described. This study aimed to determine the prevalence of PFDs in cancer survivors. We hypothesized that the prevalence of PFDs in the gynecologic cancer population would be higher than in the general female population.

METHODS

We searched PubMed (1809 to present), EMBASE (1974 to present), and the Cochrane Central Register of Controlled Trials (CENTRAL) through May 2017. The search combined subject headings, title, and abstract words for gynecologic cancer, PFDs, and prevalence. Any studies evaluating the prevalence of PFDs in gynecologic malignancies were included.

RESULTS

A total of 550 articles met the designated search criteria and 31 articles were included in this review. In cervical cancer survivors, before treatment the prevalences of stress urinary incontinence (SUI), urgency urinary incontinence (UUI) and fecal incontinence (FI) were 24-29%, 8-18% and 6%, respectively, and after treatment the prevalences of SUI, UUI, urinary retention, FI, fecal urge, dyspareunia and vaginal dryness were 4-76%, 4-59%, 0.4-39%, 2-34%, 3-49%, 12-58% and 15-47%, respectively. In uterine cancer survivors, before treatment the prevalences of SUI, UUI and FI were 29-36%, 15-25% and 3%, respectively, and after treatment the prevalences of urinary incontinence (UI) and dyspareunia were 2-44% and 7-39%, respectively. In vulvar cancer survivors, after treatment the prevalences of UI, SUI and FI were 4-32%, 6-20% and 1-20%, respectively. In ovarian cancer survivors, the prevalences of SUI, UUI, prolapse and sexual dysfunction were 32-42%, 15-39%, 17% and 62-75%, respectively.

CONCLUSIONS

PFDs are prevalent in gynecologic cancer survivors and this is an important area of clinical concern and future research.

A review of complications associated with the surgical treatment of vulvar cancer

OBJECTIVE

The mainstay of treatment for most vulvar malignancies is surgery to the vulva with lymphadenectomy to the inguino-femoral areas, plus radiotherapy or/and chemotherapy for locally advanced, or recurrent disease. Treatment is associated with significant physical, sexual, and psychological morbidity. The high morbidity rate has resulted in a continuing shift in treatment paradigms that focus on treatments that reduce morbidity without compromising cure rates. This paper reviews the complications associated with contemporary surgical treatment for vulva cancer and discusses preventative strategies.

METHODS

A review of the English literature was undertaken for articles published between 1965 and August 31, 2012 to identify articles that assessed complications resulting from surgery to the vulva or groins in patients with vulva cancer. Two independent researchers selected and qualitatively analyzed the articles using a predetermined protocol.

RESULTS

The heterogeneity of articles and differences in definitions and outcomes made this unsuitable for meta-analysis. Most studies advocated for change in surgical technique to reduce complications associated with inguino-femoral lymphadenectomy and surgery to the vulva, with varying success. The most effective means of preventing complications is by omitting systematic lymph node dissection. This can be achieved safely through sentinel lymph node biopsy. Saphenous vein sparing, VTE prophylaxis, the use of flaps and grafts, and preoperative counseling are additional ways to decrease morbidity.

CONCLUSION

Despite technical advances, complications following surgical treatment for vulva cancer remain high. More research, particularly multi centered randomized controlled trials to improve the quality of evidence and studies that focus on complications as an outcome measure and analyze individual surgeon complication rates, are needed. Measures also need to be standardized throughout the gynecologic oncology community to allow for better comparison between studies.

Quality of life in women with vulvar cancer submitted to surgical treatment: a comparative study

OBJECTIVES

To investigate the occurrence and severity of lymphoedema of the lower extremities (LLE), quality of life (QoL), and urinary and sexual dysfunction in women with vulvar cancer submitted to surgical treatment.

STUDY DESIGN

Twenty-eight patients with vulvar cancer submitted to vulvectomy and inguinofemoral lymphadenectomy and 28 healthy, age-matched women (control group) were evaluated. The occurrence and severity of LLE were determined by Miller's Clinical Evaluation. QoL, urinary function and sexual function were assessed by the EORTC QLQ-C30, SF-ICIQ and FSFI questionnaires, respectively. The differences between groups and correlations were assessed using Student's t-test, Chi-squared test, Mann-Whitney U-test and Spearman's rho test.

RESULTS

The groups were similar in terms of marital status, educational status, menopausal status, hormone therapy and height. The occurrence and severity of LLE were higher in women with vulvar cancer compared with the control group (p<0.001 and p = 0.003, respectively). A significant association was found between the severity of LLE and advanced age (p = 0.04), and the severity of LLE and higher body mass index (BMI; p = 0.04) in patients with vulvar cancer. In the patients with vulvar cancer, there was a significant correlation between the severity of LLE and worse QoL in the following domains: physical, cognitive, emotional, social, fatigue, pain, sleep and financial questions (p < 0.05). There was no difference in urinary function between the two groups (p = 0.113). Age and number of deliveries were the only variables associated with the occurrence of urinary incontinence (p = 0.01). Urinary incontinence was present in women with a mean age of 74.9 ± 4.6 years and a mean of 7.3 ± 1.3 normal deliveries. There was no difference between the groups in terms of the sexual function. Multivariate analysis showed an association between sexual function and age (p = 0.01), and sexual function and being in a stable relationship (p=0.02).

CONCLUSION

Patients submitted to vulvectomy or inguinofemoral lymphadenectomy for vulvar cancer are at higher risk of developing LLE compared with healthy, age-matched women. This has a negative effect on QoL, but does not interfere with urinary or sexual function.

Partial urethral resection in the surgical treatment of vulvar cancer does not have a significant impact on urinary continence. A confirmation of an authority-based opinion

Partial resection of the urethra is sometimes necessary in the surgical treatment of locally advanced vulvar cancer. In this study, the frequency of urinary incontinence after partial urethral resection was compared with that of patients who were treated without partial resection of the urethra. Eighteen patients with vulvar cancer encroaching or infiltrating the urethra, treated by a radical vulvectomy and partial urethrectomy, were compared with 17 patients treated by vulvectomy without partial removal of the urethra. Data on urinary incontinence pre- and postoperatively from both groups were retrospectively collected from the patient files. A questionnaire on urinary incontinence was sent to a subset of patients from both groups in order to get information on the current micturation pattern. In four out of 18 patients (22%) with a partial urethrectomy, incontinence was reported, versus two out of 17 patients (12%) in the control group (P= 0.860). Eight patients in the study group and 12 in the control group are currently alive, and all responded to the questionnaire. Two (25%) in the study group and three (25%) in the control group reported to have current symptoms of urinary incontinence. This retrospective study shows that partial resection of 1–1.5 cm of the distal urethra in addition to a radical local excision for vulvar cancer does not result in a significant increase in the frequency of urinary incontinence, compared with vulvar cancer patients without partial urethrectomy.

Radical versus conservative surgery for vulvar carcinoma

OBJECTIVE

The comparison of the radical and conservative surgical approaches for vulvar carcinoma in relation to the rate of recurrence and complications.

METHODS

The records of invasive vulvar carcinoma cases were retrospectively reviewed in Istanbul University, Cerrahpasa School of Medicine, Gynecologic Oncology Division and Social Insurance Institution, Ankara Maternity Hospital, Gynecologic Oncology Department. Surgically treated cases with squamous histology were divided into radical vulvectomy and conservative procedures groups and were compared with respect to recurrence, complications, and disease-free survival.

RESULTS

One hundred thirteen cases of invasive vulvar carcinoma cases were of squamous histopathology and 92 of these were surgically treated. The rate of local recurrence was lower in the radical vulvectomy group (25%) compared to conservative procedures groups (42.5%; p>0.05). The complication rates were comparable between the radical vulvectomy and conservative procedures groups (32.7% versus 35%, respectively; p>0.05). At the end of five years of the follow-up, the disease-free survival rates were 51.5% in radical vulvectomy group versus 35.7% in conservative procedures group (p>0.05).

CONCLUSION

The rate of recurrence, complication, and disease-free survival are similar for the radical vulvectomy and the conservative procedures. Deciding the surgical strategy for vulvar carcinoma should depend on the experience of the surgeon for the short-term adequate results.

Wound complications in patients with carcinoma of the vulva. Comparison between radical and modified vulvectomies

OBJECTIVE

To evaluate complications after different vulvectomies performed because of vulvar cancer.

STUDY DESIGN

Retrospective analysis of 149 patients who underwent vulvectomy.

RESULTS

Wound infections was found in 58%. Overweight, central or bilateral location of the tumor, and non-radical surgery were significant predictors of wound infections. Patients with a wound infection had more often wound breakdown (P<0.001), prolonged healing time (P<0.000), and lymphedema (P<0.001) than patients without infection. Antimicrobial prophylaxis did not prevent wound infection. Wound infections were found in 75% after radical en bloc vulvectomy (RV) and in 47% after modified vulvectomies (MV) (P<0.001). Also wound breakdown (47 versus 20%) (P<0.001) and lymphedema (48 versus 12%) (P<0.0001) were more common in RV group than in MV group. Lymphocysts were found in 7%, and showed no association with wound infection or type of operation. The mean hospital stay was 26 days in patients with wound infection and 12 days in patients without infection, 31 days in RV group and 12 days in MV group, respectively.

CONCLUSIONS

Wound infections are major determinants for both acute and late complications. Postoperative complications reduce with increasing use of modified vulvectomies.

Surgical interventions for early squamous cell carcinoma of the vulva

BACKGROUND

Radical surgery has been standard treatment for patients with early vulvar cancer since mid century. Survival figures are excellent, but complication rates are high. Over the last two decades, surgical treatment has become more individualised in order to decrease complications in patients with limited disease.

OBJECTIVES

To determine whether the effectiveness and safety of individualised treatment is comparable with that of more extensive (non-individualised) surgery.

SEARCH STRATEGY

The cirteria set by the Cochrane Gynaecological Cancer Group were used. We searched Medline and Embase (last search on 16 November 1999) We used our own publication archives, based on a prospective handsearch of six leading relevant journalswhich was started in December 1986. Reference lists of identified studies, gynaecological cancer handbooks and conference abstracts were also used.

SELECTION CRITERIA

Types of study: RCT's, case control and observational studies on the effectiveness of surgical treatment of vulvar cancer.

TYPES OF PARTICIPANTS

patients with cT1N0M0 squamous cell carcinoma of the vulva. Types of interventions: local surgical treatment as well as regional lymph node dissection. Types of outcome measurements: overall, disease specific and disease free survival; treatment complications; quality of life issues.

DATA COLLECTION AND ANALYSIS

The two reviewers independently assessed study quality and extracted data.

MAIN RESULTS

Only two studies with a total of 94 participants were included in the review. Both were observational studies. None of the other eleven considered studies met the minimum criteria as set by the Cochrane Collaboration. From these two studies, it can be concluded that: 1. radical local excision is as safe as a radical vulvectomy; 2. An ipsilateral lymph node dissection is safe in patients with a well lateralised tumour, and 3. A superficial groin node dissection is not as safe as a full femoro-inguinal groin node dissection. The fourth question we intended to answer is of great clinical importance: is the triple incision technique as safe as an en bloc dissection? This question could only be answered by using some of the unselected studies. From these studies, the triple incision technique appears to be as safe as the en bloc technique.

REVIEWER'S CONCLUSIONS

The available evidence regarding surgical treatment of early vulvar cancer is generally of poor quality. From the evidence with sufficient quality we conclude that radical local excision, ipsilateral lymph node dissection in lateral tumors and triple incision technique are safe treatment options for early vulvar cancer. However, superficial groin node dissection results in an excess of groin recurrences compared to a full femoro-inguinal groin node dissection.

Surgical management of vulvar cancer

Vulvar cancer is an uncommon disease, marked by typical long delays in diagnosis due to lack of awareness by doctors and patients. The most common histology is squamous, although melanoma, sarcoma and adenocarcinoma occur less frequently. The predictable spread pattern of vulvar cancer to regional then distant lymphatics has allowed for improvements in survival largely due to radical surgical intervention. However, the significant morbidity from radical surgery has led to the search for better prognostic indicators and complementary therapeutic modalities to modify the extent of surgery in both early and advanced disease. En bloc radical vulvectomy and bilateral inguinal-femoral lymphadenectomy are rarely performed today: an early invasive stage has been defined where only limited excision is required. The extent of and the indications for inguinal lymphadenectomy for various clinical tumors and role of separate incisions have been clarified. When disease has spread to more than one inguinal node, adjuvant radiotherapy has replaced pelvic lymphadenectomy as the standard. Inguinal radiotherapy without groin dissection does not appear to be adequate therapy for most patients. The use of chemotherapy and radiation to shrink large tumors to allow surgical resection continues to be evaluated but has demonstrated excellent results to date. The utility of newer techniques of sentinel node mapping is also being evaluated in squamous cancers and melanoma to limit the extent of lymphadenectomy in patients with clinically normally lymph nodes.

Lateral microscopic extension of squamous cell carcinoma of the vulva

PURPOSE

The aim of this study was to measure the radial occult microscopic spread of tumor in patients with invasive squamous cell carcinoma of the vulva.

MATERIALS AND METHODS

In the operating room the gross tumor border was marked. The pathologist took a radial section in each quadrant and measured the distance of occult lateral spread of the tumor.

RESULTS

From 7/01/93 to 6/30/96, 24 tumors from 21 patients were studied. The mean maximum tumor diameter was 3. 2 cm (0.5-7.0) and the mean depth of invasion was 9.1 mm (1.1-28.0). The gross and microscopic extent correlated in 20 tumors. Maximum lateral microscopic extent of the other 4 tumors was 3.5, 5 (to the margin), 10, and 16 mm. These 4 tumors were ulcerative and infiltrative and arose from or involved mucosa.

CONCLUSION

The gross and microscopic periphery of most invasive squamous vulvar cancers are approximately the same. Ulcerative tumors with an infiltrative pattern of invasion which involve mucosal epithelium may be more likely to extend beyond what is grossly apparent. Measurement of the tumor-free margin should be included in future studies.

Adjuvant radiation for vulvar carcinoma: improved local control

PURPOSE

Local recurrence is a significant problem following primary surgery for advanced vulva carcinoma. The objectives of this study were to evaluate the impact of adjuvant vulvar radiation on local control in high risk patients and the impact of local recurrence on overall survival.

METHODS AND MATERIALS

From 1980-1994, 62 patients with invasive vulva carcinoma and either positive or close (less 8 mm) margins of excision were retrospectively studied. Thirty-one patients were treated with adjuvant radiation therapy to the vulva and 31 patients were observed after surgery. Kaplan-Meier estimates and the Cox proportional hazard regression model were used to evaluate the effect of adjuvant radiation therapy on local recurrence and overall survival. Independent prognostic factors for local recurrence and survival were also assessed.

RESULTS

Local recurrence occurred in 58% of observed patients and 16% in patients treated with adjuvant radiation therapy. Adjuvant radiation therapy significantly reduced local recurrence rates in both the close margin and positive margin groups (p = 0.036, p = 0.0048). On both univariate and multivariate analysis adjuvant radiation and margins of excision were significant prognostic predictors for local control. Significant determinants of actuarial survival included International Federation of Gynecologists and Obstetricians (FIGO) stage, percentage of pathologically positive inguinal nodes and margins of excision. The positive margin observed group had a significantly poorer actuarial 5 year survival than the other groups (p = 0.0016) and adjuvant radiation significantly improved survival for this group. The 2 year actuarial survival after developing local recurrence was 25%. Local recurrence was a significant predictor for death from vulva carcinoma (risk ratio 3.54).

CONCLUSION

Local recurrence is a common occurrence in high risk patients. In this study adjuvant radiation therapy significantly reduced local recurrence rates and may improve overall survival in certain subgroups. As salvage rates after developing local recurrence are poor adjuvant vulvar radiation should be considered for patients at risk after primary surgery.

Management of vulvar cancer

BACKGROUND

Current therapy of vulvar malignancies is reviewed with emphasis on screening, etiology, diagnosis, staging, and treatment of preinvasive and invasive cancer.

METHODS

Screening procedures, etiologic possibilities, diagnostic techniques, staging implications, and treatment approaches are discussed in detail.

RESULTS

All malignancies of the vulva should be detected at an early stage, when they are most amenable to curative therapy. Regular examination of all women and increased efforts to educate patients should in time reduce patient and physician delay in diagnosis. The cause of the disease remains unclear, because the precursor state has not been defined accurately. The impetus to perform more conservative surgery has been accompanied by the realization of the severe psychosexual sequelae associated with radical vulvectomy. High risk prognostic factors include number of positive groin lymph nodes and diameter of the primary lesion. Diameter of the largest metastasis, intracapsular versus extracapsular nodal tumor location, laterality of spread, and deep groin nodal spread may be predictors of survival.

CONCLUSIONS

The overall incidence of vulvar malignancies will not be changed until the pathophysiology of the disease is better understood. Improved survival will depend on earlier and more accurate diagnosis and treatment, including use of radiation therapy.