Colpocleisis: reoperation risk and risk of uterine and vaginal cancer: A nationwide cohort study.

INTRODUCTION AND HYPOTHESIS: We aimed to evaluate the risk of reoperation and uterine (myometrial, endometrial, and cervical) and vaginal cancer after colpocleisis performed during the years 1977-2018. Furthermore, we also aimed to assess the development in colpocleisis procedures performed during the study period. METHODS: Danish nationwide registers covering operations, diagnoses, and life events can be linked on an individual level owing to the unique personal numbers of all Danish residents. We performed a nationwide historical cohort study including women born before year 2000 who underwent colpocleisis between 1977 and 2018 (N = 2,228) using the Danish National Patient Registry (DNPR). We followed the cohort until death/emigration/31 December 2018, whichever came first. Primary outcomes were number of pelvic organ prolapse (POP) operations performed after colpocleisis and uterine and vaginal cancer diagnosed after colpocleisis in a subgroup of women with the uterus in situ. This was assessed with cumulative incidences. RESULTS: During follow-up (median 5.6 years) 6.5% and 8.2% underwent POP surgery within 2 and 10 years after colpocleisis respectively. Within 10 years after colpocleisis 0.5% (N = 8) were diagnosed with uterine or vaginal cancer in the subgroup of women with their uterus (N = 1,970). During the study time 37-80 women underwent colpocleisis yearly and the mean age increased (77.1 to 81.4 years). CONCLUSION: Despite smaller studies showing no recurrence after colpocleisis, we found that 6.5% underwent reoperation within 2 years. Few women were diagnosed with uterine or vaginal cancer after colpocleisis. The increased age at the time of colpocleisis indicates changed attitudes regarding surgical treatment for elderly women with comorbidities.

Increased risk of stress urinary incontinence surgery after hysterectomy for benign indication-a population-based cohort study.

BACKGROUND: Hysterectomy is a common procedure used to treat different gynecologic conditions. The association between hysterectomy for benign indication and stress urinary incontinence has previously been established. Stress urinary incontinence can be treated surgically, and options have improved after introduction of the midurethral sling procedure in 1998. OBJECTIVE: This study aimed to estimate the risk of stress urinary incontinence surgery after hysterectomy for benign indication. STUDY DESIGN: The study was carried out as a matched register-based cohort study including Danish women born from 1947 to 2000. Women who underwent hysterectomy for benign indication were matched to nonhysterectomized women in a 1:5 ratio on the basis of age and calendar year of hysterectomy. The risk of stress urinary incontinence surgery after hysterectomy was estimated. We adjusted for income, educational level, and parity. The risk of stress urinary incontinence surgery was further estimated in a subcohort excluding all vaginal hysterectomies. The joint effect of hysterectomy and parity was estimated in the main cohort, and the joint effect of hysterectomy and vaginal birth or cesarean delivery on stress urinary incontinence surgery was explored in a subgroup of women who only had 1 mode of delivery. All analyses were made using the Cox proportional hazards model. RESULTS: We included 83,370 women who underwent hysterectomy and 413,969 reference women. The overall risk of stress urinary incontinence surgery was more than doubled for women who underwent hysterectomy (adjusted hazard ratio, 2.6; 95% confidence interval, 2.4-2.8). The adjusted hazard ratio decreased slightly to 2.4 (95% confidence interval, 2.3-2.6) when excluding all vaginal hysterectomies. We found a trend of increasing risk of stress urinary incontinence surgery with increased parity among both women who underwent hysterectomy and the reference group. In the subgroup of women who only had 1 mode of delivery, we found the risk of stress urinary incontinence surgery to be particularly increased for women with a history of ≥1 vaginal births. The hazard ratio was 15.1 (95% confidence interval, 10.3-22.1) for women with a history of 1 vaginal birth who underwent hysterectomy, whereas the hazard ratio for women in the reference group with 1 vaginal birth was 5.1 (95% confidence interval, 3.8-8.1). Overall, women who underwent hysterectomy had a 3 times higher risk of stress urinary incontinence surgery than the reference group, irrespective of the number of vaginal births. CONCLUSION: This study indicates, in accordance with previous studies, that hysterectomy increases the risk of subsequent stress urinary incontinence surgery. Women should be informed and gynecologists include this knowledge in decision-making. Further precautions should be taken when treating parous women, particularly those with a history of ≥1 vaginal births.

Cervical cancer after the Manchester procedure: a nationwide cohort study.

INTRODUCTION AND HYPOTHESIS: The Manchester procedure is a successful operation to treat uterine prolapse. However, the influence on cervical cancer remains unknown. We hypothesized a lower risk of cervical cancer after the Manchester procedure. METHODS: We included all Danish women undergoing the Manchester procedure during 1977-2018 (N = 23,935). Women undergoing anterior colporrhaphy (N = 51,008) were included as references due to comparable health-seeking behaviors. The study cohort is as previously described. We assessed the risk of cervical cancer mortality after the Manchester procedure versus anterior colporrhaphy using cumulated incidence plots and Cox hazard regressions. We applied Fisher's exact test to compare the distribution of histological subtypes after the operations. RESULTS: Generally, few women were diagnosed with cervical cancer (0.1% after Manchester procedure and 0.2% after anterior colporrhaphy). After the Manchester procedure, the risk of cervical cancer was reduced (HR 0.60 [95% CI 0.39-0.94]). Furthermore, we found a slightly reduced risk of overall death (HR 0.96 [95% 0.94-0.99]), but no association regarding death due to cervical cancer (HR 0.66 [95% 0.34-1.25]). The distribution of histological subtypes was not changed. CONCLUSIONS: Women undergoing the Manchester procedure are at lower risk of being diagnosed with cervical cancer, while the risk of cancer specific mortality is unchanged compared to women undergoing anterior colporrhaphy. Based on this study, we cannot recommend that women exit ordinary screening programs for human papillomavirus/cervical dysplasia after a Manchester procedure.

Stress Urinary Incontinence After Operations for Uterine Prolapse: A Nationwide Cohort Study.

IMPORTANCE: Concomitant surgery for stress urinary incontinence (SUI) during pelvic organ prolapse (POP) operations are debated. OBJECTIVES: We aimed to assess the risk of an SUI operation after a uterine prolapse operation and compare the risk after the Manchester procedure versus vaginal hysterectomy. STUDY DESIGN: We performed a nationwide historical cohort study including women with no history of hysterectomy undergoing the Manchester procedure (n = 6065) or vaginal hysterectomy (n = 9,767) for POP during 1998 to 2018. We excluded women with previous surgery for SUI and POP, concomitant surgery for SUI (n = 34, 0.2%), and diagnosed with gynecological cancer before or within 90 days from surgery. Women were followed up until SUI operation/death/emigration/diagnosis of gynecological cancer/December 31, 2018, whichever came first. Women undergoing the Manchester procedure were censored if they had undergone hysterectomy.We assessed the rate of SUI surgery with cumulative incidence plots. We performed Cox Regression to analyze the risk of SUI surgery, adjusting for age, calendar year, income level, concomitant surgery in anterior and posterior compartments, and diagnosis of SUI before POP operation. RESULTS: We found that 12.4% women with and 1.6% without SUI diagnosed before the POP surgery who underwent SUI surgery within 10 years.During follow-up (median, 8.5 years), 129 (2.1%) underwent SUI surgery after the Manchester procedure and 175 (1.8%) after vaginal hysterectomy (adjusted hazard ratio, 1.06 [0.84-1.35]). CONCLUSIONS: Of women diagnosed with SUI before POP operation 1 in 8 subsequently underwent SUI surgery. Few women not diagnosed with SUI subsequently underwent SUI surgery. There was no difference in risk of SUI after the Manchester procedure and vaginal hysterectomy.

Endometrial cancer after the Manchester procedure: a nationwide cohort study.

INTRODUCTION AND HYPOTHESIS: We aimed to investigate whether the Manchester procedure affects the risk and prognosis of endometrial cancer. METHODS: All Danish residents have a personal number permitting linkage of nationwide registers on the individual level enabling epidemiological studies with lifelong follow-up. We performed a nationwide historical cohort study including Danish women born before 2000 undergoing the Manchester procedure (N = 23,935) during 1977-2018. We included women undergoing anterior colporrhaphy as a reference group (N = 51,008) because of comparable inclination to consult a doctor and clinical similarities. Main outcomes were the number of women diagnosed with endometrial cancer, the stage of endometrial cancer at time of diagnosis, and cancer-specific and overall mortality. We followed the cohort until endometrial cancer/death/emigration/hysterectomy/31 December 2018. We performed chi-square test for trend to compare the diagnostic stage and Cox regressions to analyze the risk of endometrial cancer and mortality. The models were adjusted for age, calendar year, income level, and parity. RESULTS: During follow-up (median 13 years), 271 (1.13%) women were diagnosed with endometrial cancer after the Manchester procedure and 520 (1.05%) after anterior colporrhaphy. The adjusted hazard ratio (HR) for endometrial cancer was 1.00 [95% confidence interval (CI) 0.86-1.16]. No difference in stage of cancer was found (p = 0.18) nor when stratifying for calendar year. The HR for cancer-specific mortality and overall mortality after the Manchester procedure was 0.87 (95% CI 0.65-1.16) and 0.93 (95% CI 0.77-1.12), respectively. CONCLUSIONS: The Manchester procedure does not affect the risk or prognosis of endometrial cancer.

Pelvic organ prolapse following hysterectomy on benign indication: a nationwide, nulliparous cohort study.

BACKGROUND: Hysterectomy is commonly performed and may increase the risk of pelvic organ prolapse. Previous studies in parous women have shown an increased risk of pelvic organ prolapse surgery after hysterectomy. Parity is a strong risk factor for pelvic organ prolapse and may confuse the true relation between hysterectomy and pelvic organ prolapse. OBJECTIVE: This study aimed to investigate whether hysterectomy performed for benign conditions other than pelvic organ prolapse leads to an increased risk of pelvic organ prolapse surgery in a cohort of nulliparous women. STUDY DESIGN: We conducted a historical matched cohort study based on a nationwide population of nulliparous women born in 1947 to 2000 and living in Denmark during 1977 to 2018 (N=549,197). The data were obtained from the Danish Civil Registration System, the Danish National Patient Registry, the Fertility Register, and Statistics Denmark. Women who had a hysterectomy performed in 1977 to 2018 were included in the study (n=9535). For each of these women we randomly retrieved five nonhysterectomized women matched on age and calendar year to constitute the reference group (n=47,370). Cox proportional hazard regression analyses were performed to compare the risk of pelvic organ prolapse surgery in the 2 groups of women. RESULTS: The study included 56,905 women whom we observed for up to 42 years, entailing 809,435 person-years in risk. Overall, 9535 women who underwent a hysterectomy were matched individually with 47,370 reference women. Subsequently, a total of 29 women (30.4%) who underwent a hysterectomy and 85 reference women (17.9%) had a pelvic organ prolapse surgery performed, corresponding to incidence rates of 20.5 and 12.7 per 100,000 risk years, respectively. In addition, the risk of pelvic organ prolapse surgery increased by 60% in women who underwent a hysterectomy compared with women in the reference group (crude hazard ratio, 1.6; 95% confidence interval, 1.0-2.5; P=.04; adjusted hazard ratio, 1.6; 95% confidence interval, 1.0-2.5; P=.04). After the exclusion of women who underwent vaginal hysterectomy and their matches, the results were significantly the same (crude hazard ratio, 1.5; 95% confidence interval, 1.0-2.4; P=.05). Furthermore, we found higher rates of pelvic organ prolapse surgery in women who had a subtotal hysterectomy, total hysterectomy, or vaginal and laparoscopic-assisted vaginal hysterectomies than in women in the reference group. CONCLUSION: Hysterectomy increased the risk of pelvic organ prolapse surgery for nulliparous women by 60%. Previous studies of multiparous women have similarly shown an increased risk of prolapse after hysterectomy. As the most common risk factor for pelvic organ prolapse-vaginal birth-was not included and women were >72 years of age in this study, the numbers of pelvic organ prolapse surgeries were low. Despite the low absolute risk of pelvic organ prolapse surgery in nulliparous women, they were important in investigating the association between hysterectomy and pelvic organ prolapse, excluding vaginal birth, which is the most common risk factor for pelvic organ prolapse. As this cohort study of nulliparous women found an increased risk of pelvic organ prolapse surgery after hysterectomy, it is implied that the uterus per se protects against pelvic organ prolapse. As such, gynecologists should be aware of the risks associated with hysterectomy, and alternative uterus-sparing treatments should be considered when possible. Furthermore, women should be informed about the risks before being offered a hysterectomy.