Female Tubal Sterilization: The Time Has Come to Routinely Consider Removal

Contraceptive strategies for reducing the risk of reproductive cancers

Reproductive cancers, encompassing various malignancies like endometrial, ovarian, cervical cancer, and gestational trophoblastic neoplasia, pose a significant global health burden. Understanding their patterns is vital for effective prevention and management. Contraceptives show a protective effect against some of these cancers. This clinical guidance document aims to elucidate the disease burden of reproductive cancers and the evidence supporting contraceptive methods in prevention and management. Regional disparities in incidence and mortality highlight the urgent need for targeted interventions, particularly in low-resource settings. Healthcare providers must weigh individual risk profiles and medical eligibility criteria when discussing contraceptive options. Enhanced health literacy through direct patient education is essential for leveraging low-cost behavioral interventions to mitigate reproductive cancer risks.

Paradigm shift from tubal ligation to opportunistic salpingectomy at cesarean delivery in the United States

BACKGROUND

Opportunistic salpingectomy is now recommended at the time of routine gynecologic surgery to reduce the risk of future ovarian cancer, and performance of opportunistic salpingectomy has increased markedly at the time of benign hysterectomy. Salpingectomy has also been suggested to be feasible at the time of cesarean delivery in women desiring sterilization; however, uptake has not been previously studied on a national level.

OBJECTIVE

This study aimed to examine recent population trends in the utilization and characteristics of salpingectomy at the time of cesarean delivery in the United States.

STUDY DESIGN

This is a population-based retrospective observational study querying the National Inpatient Sample between October 2015 and December 2018. The primary outcome measure was the temporal trend of bilateral salpingectomy at cesarean delivery, assessed with linear segmented regression with log transformation utilizing 3-month time increments. The secondary outcome measures included patient characteristics associated with bilateral salpingectomy, assessed with a multinomial regression model, and surgical outcome (hemorrhage, blood transfusion, hysterectomy, and oophorectomy) at the time of bilateral salpingectomy vs bilateral tubal ligation, assessed with generalized estimating equation in a propensity score-matched model.

RESULTS

There were 3,813,823 women at the age of 15 to 49 years who had cesarean deliveries included, of whom 397,260 (10.4%) had bilateral salpingectomy and 203,400 (5.3%) had bilateral tubal ligation overall. During the time period studied, performance of bilateral salpingectomy among women undergoing cesarean delivery significantly increased from 4.6% to 13.2% (odds ratio for the fourth quarter of 2018 vs the fourth quarter of 2015, 2.69; 95% confidence interval, 2.63-2.75; Figure panel). In contrast, performance of bilateral tubal ligation among women undergoing cesarean delivery significantly decreased from 11.3% to 2.4% (odds ratio, 0.20; 95% confidence interval, 0.19-0.21). By the third quarter of 2016, the number of women who had bilateral salpingectomy exceeded those who had bilateral tubal ligation at cesarean delivery (8.6% vs 7.3%). Increasing the utilization of bilateral salpingectomy did not vary across age groups; the salpingectomy rate increased from 7.5% to 21.1% among women at the age of ≥35 years and from 3.8% to 10.7% among women at the age of <35 years (both, P<.001). In a propensity score matched model, women in the bilateral salpingectomy group were more likely to have hemorrhage (3.8% vs 3.1%; odds ratio, 1.24; 95% confidence interval, 1.15-1.33), blood product transfusion (2.1% vs 1.8%; odds ratio, 1.16; 95% confidence interval, 1.04-1.30), hysterectomy (0.8% vs 0.4%; odds ratio, 2.28; 95% confidence interval, 1.84-2.82), and oophorectomy (0.3% vs 0.2%; odds ratio, 2.02; 95% confidence interval, 1.47-2.79) than those in the bilateral tubal ligation group. When restricted to the nonhysterectomy cases, the bilateral salpingectomy group had a higher rate of hemorrhage (3.4% vs 3.0%; odds ratio, 1.16; 95% confidence interval, 1.06-1.26) and oophorectomy (0.3% vs 0.1%; odds ratio, 1.75; 95% confidence interval, 1.22-2.50) than the bilateral tubal ligation group.

CONCLUSION

In the United States, the utilization of bilateral salpingectomy at the time of cesarean delivery increased rapidly between 2015 and 2018, replacing tubal ligation as the most common type of sterilization performed with cesarean delivery. The higher surgical morbidity in the bilateral salpingectomy group than the bilateral tubal ligation group observed in this study warrants further investigation.

Spontaneous Pregnancy after Total Bilateral Salpingectomy: A Systematic Review of Literature

OBJECTIVE

To assess the occurrence of spontaneous pregnancy after a history of total bilateral salpingectomy (BS).

DATA SOURCES

A systematic search was performed using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines, searching MEDLINE, Embase, Google Scholar, PubMed, SCOPUS, and Web of Science from database inception to February 20, 2020.

METHODS OF STUDY SELECTION

We included women with a history of total BS for any indication with subsequent spontaneous pregnancy. Excluded were women who had a history of incomplete/partial salpingectomy or tubal occlusion, who had pregnancy after assisted reproductive technology, and whose pregnancy was not appropriately confirmed via beta-subunit of human chorionic gonadotropin or ultrasound.

TABULATION, INTEGRATION, AND RESULTS

The systematic search retrieved 1942 articles; 39 studies were potentially eligible, and their full texts were reviewed. A total of 4 case reports were included. Total BS had been performed for other indications than permanent contraception in all cases. Pain was the most common presenting symptom. All 4 pregnancies were intrauterine in location. Treatment was based on desire to continue pregnancy and hemodynamic stability.

CONCLUSION

Spontaneous pregnancy after total BS is exceedingly rare. The present data suggest that it is reassuring to offer total BS as a form of permanent contraception. Prospective data are warranted to ascertain short- and long-term effects of total BS for permanent contraception including its efficacy.

Postpartum Salpingectomy Compared With Standard Tubal Ligation After Vaginal Delivery

OBJECTIVE

To compare operative outcomes of postpartum salpingectomy and tubal ligation after vaginal delivery.

METHODS

This retrospective cohort study identified patients who underwent tubal sterilization between January 1, 2009, and December 31, 2019, at a large academic hospital, using the electronic medical record. All patients who delivered vaginally and underwent tubal sterilization during their delivery admissions were included. The primary outcome was total operative time. Secondary outcomes included estimated blood loss, perioperative complications, and readmission within 6 weeks postpartum. Patients who underwent bilateral tubal ligation were compared with those who underwent bilateral salpingectomy using Pearson's χ2 test, Fisher exact, and Student's t test.

RESULTS

A total of 317 eligible patients were identified. One hundred and six (94%) salpingectomies were completed using a bipolar electrocautery device. Operative time was 3 minutes shorter in the salpingectomy group, 30 minutes (interquartile range 24-38) compared with 33.5 (26-42) minutes, P=.032. Patients who underwent salpingectomy were more likely to have estimated blood loss of 5 mL or less (our institutional shorthand for minimal blood loss) than women who underwent bilateral tubal ligation (78 [69%] vs 112 [55%], P=.015). There were no significant differences in perioperative complications between the groups.

CONCLUSION

When using electrocautery, bilateral salpingectomy can be completed in the immediate postpartum period after vaginal delivery with equivalent operative times to bilateral tubal ligation.

Contraception for the Cardiac Patient: a Cardiologist’s Primer

Purpose of review

Cardiovascular disease (CVD) is the number one cause of maternal mortality in the USA. There are many cardiac conditions which pose significant risk to maternal health, and these women should be offered options to avoid unwanted pregnancies. Individualized contraceptive counseling focusing on woman’s desire for future pregnancy, comorbid conditions, and desire for hormone or non-hormonal (contraceptive) options is paramount to avoid adverse or unwanted side effects. The purpose of this review is to give general guidance on prescribing both hormonal and non-hormonal contraceptives for providers caring for women with heart disease.

Recent findings

Specific recommendation for the use of either non-hormonal or hormonal contraception requires knowledge of the types of contraceptive options available, cost, failure rates, and contraindications to use. Newer progestin-only options have become available and should be considered first-line therapy for women with cardiovascular disease.

Summary

The physiologic burden of pregnancy on the cardiovascular system can cause significant maternal morbidity and mortality for women with underlying CVD. These women should be offered safe and effective options for birth control, and both cardiology and obstetrical providers alike should possess fundamental knowledge of appropriate options.

Optimizing contraceptive access for women undergoing bariatric surgery

With the dramatic increase in the prevalence of obesity, there is a corresponding increase in surgical procedures to treat obesity. Reproductive aged women (18-45 years old) undergo half of the bariatric surgical procedures performed in the United States each year. These women experience profound physiologic changes in response to bariatric surgery, including dramatic changes in reproductive function. Current guidelines recommend delaying attempts at conception for 12-24 months after bariatric surgery during the time of most profound weight loss. Despite these recommendations, many women report unprotected intercourse during this time, and many use less efficacious contraceptive options. Herein, we address contraceptive considerations in women of reproductive age who undergo bariatric surgery and opportunities to maximize a multidisciplinary surgical approach to optimize their overall health.

The cost-effectiveness of opportunistic salpingectomy versus standard tubal ligation at the time of cesarean delivery for ovarian cancer risk reduction

OBJECTIVES

Opportunistic salpingectomy is a cost-effective strategy recommended for ovarian cancer (OvCa) risk reduction at the time of gynecologic surgery in women who have completed childbearing. We aimed to evaluate the cost-effectiveness of opportunistic salpingectomy compared to standard tubal ligation (TL) during cesarean delivery.

STUDY DESIGN

A cost-effectiveness analysis using decision modeling to compare opportunistic salpingectomy to TL at the time of cesarean using probabilities of procedure completion derived from a trial. Probability and cost inputs were derived from local data and the literature. The primary outcome was the incremental cost-effectiveness ratio (ICER) in 2017 U.S. dollars per quality-adjusted life year (QALY) at a cost-effectiveness threshold of $100,000/QALY. One- and two-way sensitivity analyses were performed for all variables. A probabilistic sensitivity analysis determined the proportion of simulations in which each strategy would be cost-effective.

RESULTS

Opportunistic salpingectomy was cost-effective compared to TL with an ICER of $26,616 per QALY. In 10,000 women desiring sterilization with cesarean, opportunistic salpingectomy would result in 17 fewer OvCa diagnoses, 13 fewer OvCa deaths, and 25 fewer unintended pregnancies compared to TL - with an associated cost increase of $4.7 million. The model was sensitive only to OvCa risk reduction from salpingectomy and TL. Opportunistic salpingectomy was not cost-effective if its cost was >$3163.74 more than TL, if the risk-reduction of salpingectomy was <41%, or if the risk-reduction of TL was >46%. In probabilistic sensitivity analysis opportunistic salpingectomy was cost effective in 75% of simulations.

CONCLUSIONS

In women undergoing cesarean with sterilization, opportunistic salpingectomy is likely cost-effective and may be cost-saving in comparison to TL for OvCa risk reduction.

Women's preferences for permanent contraception method and willingness to be randomized for a hypothetical trial

OBJECTIVE

To understand women's preferences for permanent contraception by salpingectomy or tubal occlusion following standardized counseling and evaluate the practicality of a future randomized trial.

STUDY DESIGN

We invited pregnant and non-pregnant women planning permanent contraception at the University of California, Davis (UCD) and University of Tennessee (UT) Obstetrics and Gynecology clinics to participate. We enrolled women when they received routine counseling and signed procedure consent. Participants received standardized information sheets reviewing permanent contraception options based on pregnancy status then completed an anonymous survey with questions about demographics, method preference, and willingness to participate in a hypothetical randomized trial comparing salpingectomy and tubal occlusion. We evaluated predictors for salpingectomy preference using multivariable analysis.

RESULTS

From July 2015 to October 2016, we enrolled 75 women at UCD and 63 women at UT. Overall, respondents preferred salpingectomy (63.0%); among the 47 women not currently pregnant at both sites, 40 (85.1%) preferred salpingectomy, most commonly because of higher efficacy. Although population characteristics differed significantly between the sites, only UCD site (aOR 4.2; 95% CI 1.9, 9.4) and non-pregnancy status (aOR 4.2; 95% CI 1.6, 10.8) predicted preference for salpingectomy in the multivariable model. Most participants (n=84, 60.9%) would not be willing to be randomized to a theoretical trial comparing salpingectomy and tubal occlusion procedures.

CONCLUSION

Among a diverse group of women from two different areas in the U.S. given a choice of permanent contraception methods, salpingectomy is preferred over tubal occlusion. Most women planning a permanent contraceptive procedure would not agree to a randomized comparison of these methods.

IMPLICATIONS STATEMENT

Salpingectomy, which offers theoretically higher efficacy and potentially greater ovarian cancer protection compared to tubal occlusion, is preferred by the majority of patients and should be offered to all women seeking permanent contraception. Differences in method choices less likely reflect the patient population and more likely the counseling provided.

Successful completion of total and partial salpingectomy at the time of cesarean delivery

OBJECTIVE

Evaluate completion of partial or total salpingectomy during Cesarean delivery based on intended procedure.

STUDY DESIGN

We conducted a retrospective study of women who had a permanent contraception procedure during Cesarean delivery at an urban, academic hospital from November 2015 through April 2017. We reviewed all charts of women who had a Cesarean delivery to identify those who underwent concomitant tubal surgery, including both completed and attempted procedures. We compared demographic, medical, and obstetric characteristics of participants by planned and completed method using univariate analysis.

RESULTS

We identified 122 women who underwent Cesarean delivery with planned concurrent permanent contraception procedure. Thirty-two (26.2%) women preferred partial salpingectomy and 90 (73.8%) preferred total salpingectomy. All women who desired partial salpingectomy had the procedure performed. However, 17 (18.9%) women desiring total salpingectomy could not have the procedure performed bilaterally: nine underwent a mixed procedure and seven underwent bilateral partial salpingectomy because of adhesions, engorged vasculature, or unspecified reasons. One woman had significant adhesive disease preventing any procedure. Among women who planned a total salpingectomy, having ≥3 Cesarean deliveries was the only factor associated with needing an alternative procedure (P=.04).

CONCLUSION

As interest in total salpingectomy for permanent contraception increases, surgeons should counsel women who are interested in total salpingectomy at time of Cesarean delivery that adhesions and tubal proximity to adjacent vessels may preclude completion of bilateral tubal removal and discuss alternative options prior to surgery.

IMPLICATIONS

Interest in bilateral total salpingectomy for permanent contraception at the time of Cesarean delivery is increasing; accordingly, surgeons should counsel patients that adhesions and proximity to large vessels may preclude completion of bilateral total salpingectomy, especially in women who have had multiple prior Cesarean deliveries.

Risk-Reducing Salpingectomy Versus Standard Tubal Sterilization: Lessons From Offering Women Options for Interval Sterilization

OBJECTIVES

In women receiving sterilization, the removal of the entire fallopian tube, a procedure referred to as a risk-reducing salpingectomy (RRS), reduces subsequent ovarian cancer risk compared with standard tubal sterilization procedures. There are limited data on which surgical procedure women will choose when educated about the benefits of an RRS. Our objective was to study the proportion of women desiring sterilization that would choose an RRS.

METHODS

This cohort study included women 30 years of age and older with a living biological child who requested laparoscopic sterilization at a tertiary academic hospital. Participants were given a decision aid and offered an RRS or a standard tubal sterilization procedure with titanium clips. The primary outcome was to determine the proportion of women who would choose an RRS. Other outcomes included estimated blood loss and operative time, which was compared between groups, along with complications.

RESULTS

Fourteen of the 18 (78%) women who participated in our study chose RRS. Estimated blood loss and operating time were similar among women who underwent RRS and standard tubal sterilizations. There were no significant complications in either group. The study was ended early based on emerging data and a change in national practice patterns.

CONCLUSIONS

Because of the elective nature of sterilization and the complexities of cancer risk reduction, a patient-centered approach is beneficial for sterilization counseling. Our results support offering RRS as an alternative to standard tubal sterilization.

The feasibility, safety, and effectiveness of hysteroscopic sterilization compared with laparoscopic sterilization

BACKGROUND

In contrast to conventional laparoscopic sterilization, newer hysteroscopic approaches avoid the need for hospital admission, general anesthesia, and prolonged recovery. However, there are concerns that the feasibility, safety, and efficacy of hysteroscopic sterilization may be lower than established laparoscopic sterilization.

OBJECTIVE

We sought to evaluate the outcomes of hysteroscopic sterilization compared with laparoscopic sterilization in routine clinical practice in a comparative observational cohort study.

STUDY DESIGN

This study was carried out at University of Birmingham, United Kingdom, National Health Service teaching hospital, office hysteroscopy clinics, and day-case hospital unit. In all, 1085 women underwent hysteroscopic sterilization and 2412 had laparoscopic sterilization. Hysteroscopic sterilization was carried out using the tubal implant permanent birth control system in the office setting and laparoscopic sterilization using the tubal ligation system as a day-case under general anesthesia. Outcome data were collected regarding feasibility (technical completion of the sterilization procedure, satisfactory radiological confirmation at 3 months-hysterosalpingogram or transvaginal pelvic ultrasound scan), safety events within 30 days of procedures, reoperations, and unintended pregnancies within 1 year of procedures.

RESULTS

Hysteroscopic sterilization was successful in 992/1085 (91.4%; 95% confidence interval, 89.6-93.0%) at the first attempt. In comparison, bilateral tubal ligation was successfully performed in 2400/2412 (99.5%; 95% confidence interval, 99.2-99.8%) of patients who underwent laparoscopic sterilizations (odds ratio, 18.8; 95% confidence interval, 10.2-34.4). In all, 902/1085 (83.1%; 95% confidence interval, 80.8-85.2%) of successfully performed hysteroscopic procedures attended for radiological confirmation testing were considered satisfactory. The rate of adverse events within 30 days were similar: 2/1085 (0.2%) vs 3 (0.12%; 95% confidence interval, 0.04-0.36%). There were 3/1085 (0.3%; 95% confidence interval, 0.1-0.8%) unintended pregnancies after hysteroscopic sterilization compared with 5/2412 (0.2%; 95% confidence interval, 0.1-0.5%) laparoscopic sterilization (odds ratio, 1.3; 95% confidence interval, 0.3-5.6). Median length of follow-up for pregnancy outcome was 5 years. Hysteroscopic sterilization was associated with a higher risk of reoperation at 1 year compared to laparoscopic sterilization (odds ratio, 6.2; 95% confidence interval, 2.8-14.0) and the commonest reintervention was unilateral salpingectomy (12/22, 54.5%).

CONCLUSION

Hysteroscopic sterilization has been introduced as a more convenient, office-based method of permanent fertility control. However, while the small risk of unintended pregnancy is comparable to conventional laparoscopic sterilization, women should also be counselled regarding its lower success rate in successfully completing the procedure and its higher rate of failed reoperation.

The Evolution of and Evidence for Opportunistic Salpingectomy

In the absence of significant benefit from either novel therapeutics or screening, the focus of decreasing ovarian cancer incidence and mortality has shifted toward primary prevention. Histopathologic data have demonstrated that up to 70% of ovarian cancers may actually arise from the fallopian tube. This has led to the increased adoption of opportunistic salpingectomy as a tool for ovarian cancer prevention. In turn, the potential surgical risks and ovarian cancer prevention of this emerging practice have generated multiple studies. In this comprehensive review, we address the origins of ovarian cancer, the historical context and recent trends of tubal surgery, the existing population-based data on ovarian cancer risk reduction, and provide a detailed review of the evidence on surgical risks of salpingectomy. To date, the safety and ovarian cancer risk reduction evidence sheds a positive light on opportunistic salpingectomy. Although research on this subject has grown substantially in recent years, there remains a paucity of large, prospective studies that examine clinical outcomes.

Safety outcomes of female sterilization by salpingectomy and tubal occlusion

OBJECTIVE

Compare immediate and short-term complications and surgical times among women having laparoscopic salpingectomy or tubal occlusion for female sterilization.

STUDY DESIGN

We used billing data to identify women having laparoscopic sterilization at our training institution between July 1, 2011, and June 30, 2015. We performed a retrospective chart review to extract demographic information, surgical times and complications within 30 days, including unscheduled clinic or emergency room visits. We categorized complications as immediate (prior to discharge) and short-term (within 30 days after the procedure). Surgeries including additional procedures other than IUD removal were considered mixed operations. Mixed operations and unilateral sterilization procedures were only included in safety evaluations.

RESULTS

The 149 procedures included 81 salpingectomies (including 18 mixed operations and 2 unilateral salpingectomies) and 68 tubal occlusions (including 8 mixed operations). All procedures involved Obstetrics and Gynecology residents. Salpingectomy and occlusion procedures had similar immediate (2.5% vs. 2.9%, p=1.0) and short-term (4.9% vs. 14.7%, p=.051) complication rates. Surgical time averaged 6 min longer for salpingectomies than occlusion procedures (44 vs. 38 min, respectively, p=.018). Average surgical times were shorter with more experienced (3rd/4th year) residents than less experienced (1st/2nd year) residents for both salpingectomy (32±18 min vs. 46±13 min, respectively, p=.124) and occlusion procedures (32±13 min vs. 41±12 min, respectively, p=.026).

CONCLUSION

Salpingectomy for female sterilization takes slightly longer to complete than tubal occlusion procedures without evidence that it increases complications.

IMPLICATIONS STATEMENT

Laparoscopic salpingectomy is a safe alternative to tubal occlusion with only a small increase in surgical time. Because salpingectomy offers higher efficacy and more ovarian cancer protection than occlusion procedures, salpingectomy should be an option offered to women seeking laparoscopic sterilization.

Differences in risk for type 1 and type 2 ovarian cancer in a large cancer screening trial

OBJECTIVE

To investigate the role of previous gynecologic surgery, hormone use, and use of non-steroidal anti-inflammatory drugs on the risk of type 1 and type 2 ovarian cancer.

METHODS

We utilized data collected for the Prostate, Lung, Colorectal, and Ovarian cancer screening trial. All diagnosed ovarian cancers were divided into three groups: type 1, endometrioid, clear cell, mucinous, low grade serous, and low grade adenocarcinoma/not otherwise specified (NOS); type 2, high grade serous, undifferentiated, carcinosarcoma, and high grade adenocarcinoma/NOS; and other: adenocarcinoma with grade or histology not specified, borderline tumors, granulosa cell tumors. The odds ratios for type 1, type 2, and other ovarian cancers were assessed with regard to historical information for specific risk factors.

RESULTS

Ibuprofen use was associated with a decrease in risk for type 1 ovarian cancer. Tubal ligation and oral contraceptive use were associated with a decrease in risk for type 2 ovarian cancer. A history of ectopic pregnancy was associated with a decreased risk for all ovarian cancers by almost 70%.

CONCLUSION

These findings support the hypothesis that carcinogenic pathways for type 1 and type 2 ovarian cancer are different and distinct. The marked reduction in all ovarian cancer risk noted with a history of ectopic pregnancy and salpingectomy implies that the fallopian tube plays a key role in carcinogenesis for both type 1 and type 2 ovarian cancer.

Update on permanent contraception options for women

PURPOSE OF REVIEW

Permanent methods are the most commonly used contraceptive options worldwide. Even with the increase in popularity and accessibility of long-acting reversible methods, there remains high demand for permanent options, especially among women in developing countries.

RECENT FINDINGS

Traditional methods of permanent contraception, such as postpartum tubal ligation and interval surgical tubal occlusion or electrocautery by mini-laparotomy or laparoscopy are well tolerated and highly effective. Bilateral total salpingectomy for ovarian cancer risk reduction is currently being investigated. Hysteroscopic tubal occlusion reduces or eliminates the need for anesthesia, but requires surgical training and specialized equipment. Alternative permanent contraception methods are being explored including immediately effective hysteroscopic methods, and nonsurgical permanent contraception methods that have the potential to improve access and reduce cost.

SUMMARY

Permanent contraception methods are an important part of the contraceptive methods mix designed to meet the needs of women who have completed desired family size or wish never to become pregnant. Current surgical approaches to permanent contraception are well tolerated and highly effective. The development of a highly effective nonsurgical approach could simplify the provision of permanent contraception.

Tubal Ligation Induces Quiescence in the Epithelia of the Fallopian Tube Fimbria

Tubal ligation keeps the fimbriated end of the fallopian tube intact while interrupting the conduit for sperm and egg between the uterus and ovary. Tubal ligation is associated with an approximately 20% decreased risk of high-grade serous ovarian cancers, which mounting evidence suggests arise from the distal fallopian tube epithelium. We postulated that biological changes at the epithelial cellular level of the distal fallopian tube may account for the surgical procedure's observed risk reduction. We compared the histology, presence of epithelial progenitors (basally located CD44-positive cells), and degree of epithelial proliferation (Ki67-positive cells) of distal fallopian tube from 10 patients with previous tubal ligation and 10 age-matched patients with uncut fallopian tubes. A significantly reduced population of proliferating epithelial progenitors (basally located CD44/Ki67 dual-positive cells) was detected in the tubal ligated specimens (P = .0002). To functionally assess the effect of tubal ligation, a murine model was utilized to compare the growth capacity of distal fallopian tube epithelial cells isolated from either ligated or sham-operated tubal epithelia. Murine fallopian tube epithelial cells isolated after tubal ligation showed a significantly reduced capacity to grow organoids in culture compared to sham-operated controls (P = .002). The findings of this study show that tubal ligation is associated with a reduced presence and decreased proliferation of progenitor cells in the distal fallopian tube epithelium. These compositional and functional changes suggest that tubal ligation induces quiescence of distal fallopian tube epithelial cells.

Contraception and sexual health in obese women

As the proportion of women with obesity increases worldwide, understanding the influence of body weight on sexual behavior, fertility, and contraceptive effectiveness is critical for health-care professionals and patients. Although many have theorized that obese women are different from normal-weight women regarding sexual health and behavior, current evidence for the most part disproves this. The exception is in adolescents where body image may play a role in riskier behavior, placing them at a greater risk of an unintended pregnancy. Given that most modern contraceptives were not originally evaluated in obese women, understanding how weight affects contraceptive pharmacokinetics and efficacy should be a focus of ongoing research. Evidence is reassuring that most modern contraceptive methods are safe and effective in obese women. This paper reviews what is known about sexual and contraceptive behavior, as well as the effectiveness and pharmacokinetics of modern contraceptives, for overweight and obese women.