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International trends in concurrent hysterectomy at risk-reducing surgery in BRCA1/2 pathogenic variant carriers: a
Tamar A Gootzen1, Barbara M Norquist2, Roni Nitecki Wilke3
1Department of Gynecology and Obstetrics, Radboud University Medical Center, Nijmegen, The Netherlands.
Background:
BRCA1/2 pathogenic variant carriers are advised to undergo a risk-reducing salpingo-oophorectomy between the ages of 35 and 45 due to their increased risk of tubo-ovarian cancer. A concurrent hysterectomy may be performed at the time of risk-reducing salpingo-oophorectomy. Currently, the international execution of hysterectomy during risk-reducing surgery and the factors guiding related decision-making are unknown.
Objective:
We aimed to evaluate the international execution of concurrent hysterectomy during risk-reducing surgery for tubo-ovarian cancer and factors guiding providers' decision-making about this.
Study Design:
We conducted a mixed-methods study. First, we executed a quantitative analysis with data from the Women choosIng Surgical Prevention (WISP) and TUBectomy with delayed oophorectomy as Alternative for risk-reducing salpingo-oophorectomy in high-risk Women to assess the Safety of Prevention (TUBA-WISP II) study, both prospective preferential trials assessing surgical strategies for tubo-ovarian cancer prevention. Data were collected via electronic case report forms. Concurrent hysterectomy during risk-reducing salpingo-oophorectomy was compared between Europe, North- and South America, and Australia using Kruskal-Wallis tests. We used univariable logistic regression models to estimate the association of personal and prevention-related characteristics with the execution of hysterectomy at risk-reducing salpingo-oophorectomy in women from North- and South America. Subsequently, we conducted focus group interviews with gynecologic providers from 12 countries who provide preventive care for individuals at increased risk of tubo-ovarian cancer to identify indications, barriers, and facilitators for the execution of hysterectomy with risk-reducing salpingo-oophorectomy.
Results:
In the quantitative analysis, we included 2181 participants, of whom 1647 (75.5%) were from Europe, 498 (22.8%) from North- and South America, and 36 (1.7%) from Australia. Execution of hysterectomy at risk-reducing salpingo-oophorectomy differed substantially between continents, with an execution of 48.8% in North- and South America, 14.2% in Australia, and 2.8% in Europe (P<.001). Execution of concurrent hysterectomy at risk-reducing salpingectomy in women from North- and South America occurred more often in women with a BRCA1 pathogenic variant compared to a BRCA2 pathogenic variant (adjusted odds ratio 0.4 [95% confidence interval, 0.2-0.7]). In the qualitative analysis, we interviewed 23 healthcare providers and identified 31 barriers and 32 facilitators regarding hysterectomy execution during risk-reducing salpingo-oophorectomy. A total of 8 different indications were mentioned, but opinions varied on the validity and weight given to each indication. Providers indicated that important barriers or facilitators for concurrent hysterectomy included a lack of clear guidelines, cultural variation between countries, (lack of) consensus within departments, and different interpretation of the endometrial cancer risk.
Conclusion:
Internationally, there is a large variation in execution of hysterectomy during risk-reducing surgery with frequent utilization in North- and South America, and rare utilization in Europe. This could be explained by the interpretation of indications for hysterectomy by providers, which might be explained by cultural variation, the absence of clear guidelines, and limited scientific evidence.
