Robot-assisted tubo-tubal reanastomosis after sterilization in 10 steps.

Five to 20% of women regret having a tubal ligation. These women are generally otherwise fertile and have a better chance of pregnancy than other patients experiencing infertility, whether by in vitro fertilization or after tubal surgery. Historically, tubal anastomosis surgery has long been performed by microsurgery through laparotomy, which provided very high precision but was associated with some degree of morbidity. The parallel development of in vitro fertilization and laparoscopy have contributed to reducing the indications for tubal surgery. The laparoscopic approach is challenging because of the number and precision of the sutures needed. The robot-assisted laparoscopic approach may reduce the surgical difficulty and improve the accessibility of this technique. We have described the technique of tubo-tubal reanastomosis after sterilization with robot-assisted laparoscopy in 10 steps. Robot-assisted laparoscopy provides favourable conditions for performing tubo-tubal reanastomosis after sterilization due to the camera stability, precision of movement, and amplitude of articulations.

Microsurgical anastomosis of the fallopian tubes after tubal ligation: a systematic review and meta-analysis.

OBJECTIVE: Between 20% and 30% of women who have undergone tubal ligation regret their decision. The alternative to regain fertility for these women is either in vitro fertilization or tubal re-anastomosis. This article presents a systematic review with meta-analysis to assess the current evidence on the efficacy of tubal recanalization surgery in patients who have previously undergone tubal ligation. STUDY DESIGN: The search was conducted in the World of Science (WOS) database, The Cochrane Library and ClinicalTrials.gov record using the keywords "tubal reversal", "tubal reanastomosis" and "tubal anastomosis". The review was carried out by two of the authors. Data from 22 studies were evaluated, comprising over 14,113 patients who underwent the studied surgery, following strict inclusion criteria: articles published between January 2012 and June 2022, in English and with a sample size bigger than 10 patients were included. A random-effects meta-analysis was performed. RESULTS: The overall pregnancy rate after anastomosis was found to be 65.3 % (95 % CI: 61.0-69.6). The percentage of women who had at least one live birth, known as the birth rate, was 42.6 % (95 % CI: 34.9-51.4). Adverse outcomes after surgery were also examined: the observed abortion rate among women who underwent surgery was 9.4 % (95 % CI: 7.0-11.7), and the overall ectopic pregnancy rate was 6.8 % (95 % CI: 4.6-9.0). No differences were found between the outcomes when differentiating surgical approaches: laparotomy, laparoscopy, or robotic-assisted surgery. The patient's age was identified as the most significant determining factor for fertility restoration. Finally, when comparing the results of tubal reversal with in vitro fertilization, reversal procedures appear more favorable for patients over 35 years old, while the results are similar for patients under 35 years old, but more data is needed to evaluate this finding. CONCLUSION: Therefore, the available literature review demonstrates that surgical anastomosis following tubal ligation is a reproducible technique with relevant success rates, performed by multiple expert groups worldwide.

The feasibility of reduced sutures in 3D laparoscopic tubal sterilization reversal.

STUDY OBJECTIVE: To show the technique of reduced sutures in 3D laparoscopic tubal reanastomosis. DESIGN: Step-by-step demonstration of the procedure using video. SETTING: Laparoscopic tubal sterilization reversal demands high precision and requires both skill and experience. Conventionally, 4 to 6 interrupted patterns using 6-0 to 8-0 absorbable sutures are used for laparoscopic tubal reanastomosis. We used fewer and larger sutures under a magnified 3D view to perform the procedure. INTERVENTIONS: We presented a case of a 42-year-old woman, gravida 3, para 3, who underwent tubal sterilization during Cesarean section 10 years ago. Preoperative hysterosalpingography (HSG) showed bilateral distal tubal occlusion. The procedure started with the subserosal injection of diluted vasopressin in both proximal and distal ends and in the mesosalpinx to facilitate dissection and hemostasis. After transection of tubal stump and removal of scar tissue, we used a 3 Fr ureteral catheter as the stent to facilitate suturing. Three interrupted 4-0 monocryl sutures were used for suturing both tubal mucosal and muscular layers at 6, 2, and 10 o'clock sites. We performed bilateral ampullo-ampullary reanastomosis. The tubes were successfully reanastomosed, and patency was confirmed by chromotubation performed at the end of the procedure (Figure 1). The operation lasted for 71 minutes. The operative blood loss was less than 50 ml. Patent right fallopian tube was confirmed on postoperative HSG 1 month later. The patient had a successful pregnancy 8 months after the operation. CONCLUSION: Our experience shows the feasibility of 3D laparoscopy for tubal reanastomosis using reduced sutures. The technique alleviates the damage to the fallopian tube. The operative time, hospital stay, and postoperative adhesions were significantly lower than the conventional method with a comparable success rate.

Female sterilization reversal in the era of in-vitro fertilization.

PURPOSE OF REVIEW: Regret after female sterilization is not uncommon in the United States. Prior to the development of assisted reproductive technology (ART), surgical reversal of sterilization was the only option for patients interested in fertility. First performed in 1972, this procedure has since been refined over the years by gynaecologic surgeons. With in-vitro fertilization (IVF) gaining popularity, interest in sterilization reversal has waned. However, sterilization reversal should remain an important option in patients seeking pregnancy after tubal ligation. RECENT FINDINGS: A direct comparison between IVF and sterilization reversal is challenging due to inherent differences in reporting fertility outcomes. However, sterilization reversal may optimize fertility in younger women, whereas IVF may be more effective in older women. The surgical approach to sterilization reversal can be laparotomic, laparoscopic or robotic. Clinical decision making should include consideration of the risk of ectopic pregnancy, interval from sterilization to reversal, type of sterilization procedure, planned anastomotic site and projected remaining tubal length. SUMMARY: In the era of IVF, sterilization reversal still has a place in the management in restoring fertility. Creating awareness of the role of sterilization reversal is the first step in improving access to adequate training in this procedure for the next generation of reproductive surgeons.

Is there any difference between pregnancy results after tubal reanastamosis performed laparotomically, laparoscopically, and robotically?

INTRODUCTION: Tubal reanastamosis offers hope to conceive again. However, there are many factors that affect the success of this procedure. In our study we aimed to compare the pregnancy rates of the surgical methods used for tubal reanastamosis in pregnancy requested after tubal sterilization. METHODS: In our study we compared the rates of pregnancies after reanastamosis retrospectively in female patients under the age of 40 who underwent reanastamosis between 2010 and 2019 with laparotomic, laparoscopic and robotic methods. A single layer of 4 quadrant 6/0 number polydioxanone absorbable sutures were used in all surgical methods. A similar surgical technique was used. RESULTS: In surgical methods (laparotomy, laparoscopy, and robotics), there was a statistical difference between the three groups in terms of operation times of surgical methods used for tubal reanastamosis (p < 0.05). Laparotomy, laparoscopy, and robotics pregnancy rates were 52.6% (n = 41), 67.3% (n = 37), 61.2% (n = 63), respectively. There was no statistical difference between groups in terms of pregnancy rates. However, odds ratio (OR) values of the laparoscopy group and robotics group probability of conception were 1.536 (95% confidence interval [CI], 0.813-2.898), 1.111 (95% CI, 0.656-1.879) higher, respectively. CONCLUSIONS: Although there is no statistical difference between the surgical methods used for tubal reanastamosis, we think that the laparoscopic surgical method may be preferable due to the shorter hospital stay. We think that the previous method of bilateral tubaligastion (BTL), the site of reanastasis, and the time between BTL and reanastomosis were effective in pregnancy success.

Laparoscopic Essure® Device Removal by En Bloc Salpingectomy-Cornuectomy with Intraoperative X-Ray Checking: A Retrospective Cohort Study.

STUDY OBJECTIVE: To evaluate the feasibility, efficacy, and morbidity of Essure® device removal via laparoscopic en bloc salpingectomy-cornuectomy resection (LSC) and the utility of confirmation of complete removal with an intraoperative X-ray of the removed specimen (IX-S). DESIGN: Retrospective observational cohort study. SETTING: Academic hospitals of La Conception, Marseille, and Arnaud-de-Villeneuve, Montpellier, France. PATIENTS: Women who were not seeking future fertility seeking Essure® device removal by salpingectomy, between February 2017 and August 2018. INTERVENTIONS: All women underwent LSC. An IX-S was performed to confirm complete Essure® device removal. In the case of an unsatisfactory IX-S, an intraoperative pelvic X-ray control of the patient (IX-P) was performed. If IX-P diagnosed residual Essure® fragments, an additional resection was performed, and the removed tissue was checked by IX-S. MEASUREMENTS AND MAIN RESULTS: We included 72 women, and a total of 140 Essure® devices were removed. The IX-S confirmed complete Essure® device removal in 131 of 140 cases (93.6%) in 63 of 72 women (87.5%). Out of the 9 women with unsatisfactory IX-S, 6 had no residual Essure® fragments at IX-P, and Essure® device removal was considered complete. Three women had a persistent Essure® fragment at IX-P: an additional resection allowed complete removal in 2 cases and resulted in failure in 1 of 140 case (0.7%). There were 2 of 72 women (2.8%) intraoperative complications and 4 of 72 women (5.6%) postoperative grade 1 complications according to the Clavien-Dindo classification. CONCLUSION: Essure® device removal by LSC appears to be an effective and safe procedure. IX-S is a useful method to evaluate whether the removal of Essure® device is complete during an LSC procedure.

A different time for tubal surgery.

"An object in motion tends to remain in motion along a straight line unless acted upon by an outside force." -Isaac Newton.

A Novel Technique for Essure Reversal.

BACKGROUND AND OBJECTIVES: An increasing number of women are seeking removal of the Essure sterilization device due to symptoms including pelvic pain, abnormal bleeding, and allergic reaction. A fraction of these women also desire a future pregnancy and request sterilization reversal at the time of device removal. We present a novel technique for Essure reversal in addition to our experience with three cases. METHODS: Simultaneous laparoscopy and hysteroscopy is used to remove the device followed by laparoscopic reimplantation of the distal fallopian tube to the uterine fundus. A video of our method is included and the outcomes of three patients reported. RESULTS: Three women underwent laparoscopic Essure reversal for device-attributed symptoms and desire to restore fertility between 2017 and 2018. All procedures were uncomplicated with restoration of tubal patency in one or both fallopian tubes on follow-up hysterosalpingogram. Over a period of 4 to 10 months of followup, no pregnancies have been reported. CONCLUSION: Essure reversal is a feasible technique for removing the device and restoring tubal patency; however, more data are needed on pregnancy outcomes following this novel procedure.

Robotic Single-Site Tubal Reanastomosis: The Robotic Factor.

STUDY OBJECTIVE: To investigate the advantages of using robotic assistance in tubal reanastomosis surgery. DESIGN: A narrated instructional video. SETTING: University Hospital, Baylor College of Medicine, Houston, Texas (Canadian Task Force Classification III). PATIENT: A 33-year-old woman, G2P2003, who regretted her prior tubal ligation; she continued to request for a tubal reversal with a desire to conceive in the near future. A single-site approach was decided on when she expressed concern for the cosmetic aftermath of multiport surgery. INTERVENTIONS: Robotic single-site tubal reanastomosis. MEASUREMENTS AND MAIN RESULTS: We performed robotic single-site tubal reanastomosis on the patient. We used the energy instruments of the monopolar hook and the bipolar slotted grasper. Entry was performed in the umbilicus, after which an abdominal survey was conducted to determine and locate the blocked fallopian tubes. A cold scissor, to avoid additional damage to the tubes, was used to resect the portion of the right blocked tube, and a neonatal feeding tube was inserted though both sections of the tube to ensure proper alignment during the repair. Additionally, a figure of eight suture was placed in the mesosalpinx to reduce the amount of tension during the tubal reanastomosis. We used 4 interrupted 5-0 PDS sutures, with 2 wristed needle drivers, to establish and precisely align the 2 sections of tube, first in the mucosal layer and then in the serosal layer, to achieve proper retention. Upon successful chromopertubation with methylene blue dye, the process was repeated on the left side. A successful tubal reanastomosis was completed and chromopertubation clearly demonstrated that the tubes were patent. Total operation time was approximately 100 minutes, resulting in a successful surgery. Estimated blood loss was only 20 mL. At 2 months after surgery a fluoroscopic hysterosalpingogram was conducted to verify the patency of the tubes. We concluded that both tubes were patent. CONCLUSIONS: The single-site robotic approach provides a potent and valuable method for tubal reanastomosis, rendering difficult surgical techniques more accessible.

Transvaginal natural orifice transluminal endoscopic surgery tubal reanastomosis: a novel route for tubal surgery.

OBJECTIVE: To demonstrate how a transvaginal natural orifice transluminal endoscopic surgery (NOTES) tubal reanastomosis is a novel route for tubal surgery. The surgical technique is a combination of traditional vaginal surgery with single-site surgical skills. DESIGN: The surgical technique is explained in a stepwise fashion with the use of surgical video footage. The video uses a surgical case to demonstrate the specific techniques necessary to perform a NOTES tubal reanastomosis. SETTING: Teaching university. PATIENT(S): A 42-year-old female G2P2 with a history of tubal ligation 11 years before presentation requesting a tubal recanalization. INTERVENTION(S): Transvaginal NOTES tubal reanastomosis was initiated with a posterior colpotomy. A single-site gelport was placed. The fallopian tubes were hydrodissected, the blocked portion of each tube was removed, an epidural catheter was threaded through each lumen, and the two remaining segments of each tube were sutured together in an end-to-end fashion using single-site suturing skills. MAIN OUTCOME MEASURE(S): Transvaginal NOTES tubal reanastomosis as an alternative route for tubal reanastomosis. RESULT(S): The bilateral fallopian tubes were recanalized with bilateral tubal patency. This was confirmed 8 weeks postoperatively with a three-dimensional sonohystogram, which showed patency of the bilateral fallopian tubes. CONCLUSION(S): The current preferred technique for reversal of a tubal sterilization is to perform a minimally invasive surgery with an end-to-end anastomosis. This gives the patient a 60%-90% intrauterine pregnancy rate postoperatively. NOTES has the benefits of a fast recovery, no abdominal incisional pain, and an extremely cosmetic outcome. Current research has shown a 0%-3.1% range for the risk of pelvic infection in transvaginal NOTES if prophylactic antibiotics are administered during the surgery. The NOTES tubal reanastomosis combines the traditional vaginal surgery technique of creating a posterior colpotomy with single-site surgical skills like suturing and knot tying. The surgery is completed through a single transvaginal port without an abdominal incision. In the hands of a skilled minimally invasive surgeon, transvaginal NOTES tubal reanastomosis is a feasible and alternative route for this procedure.

The Association Between Vasectomy and Prostate Cancer: A Systematic Review and Meta-analysis.

Importance: Despite 3 decades of study, there remains ongoing debate regarding whether vasectomy is associated with prostate cancer. Objective: To determine if vasectomy is associated with prostate cancer. Data Sources: The MEDLINE, EMBASE, Web of Science, and Scopus databases were searched for studies indexed from database inception to March 21, 2017, without language restriction. Study Selection: Cohort, case-control, and cross-sectional studies reporting relative effect estimates for the association between vasectomy and prostate cancer were included. Data Extraction and Synthesis: Two investigators performed study selection independently. Data were pooled separately by study design type using random-effects models. The Newcastle-Ottawa Scale was used to assess risk of bias. Main Outcomes and Measures: The primary outcome was any diagnosis of prostate cancer. Secondary outcomes were high-grade, advanced, and fatal prostate cancer. Results: Fifty-three studies (16 cohort studies including 2 563 519 participants, 33 case-control studies including 44 536 participants, and 4 cross-sectional studies including 12 098 221 participants) were included. Of these, 7 cohort studies (44%), 26 case-control studies (79%), and all 4 cross-sectional studies were deemed to have a moderate to high risk of bias. Among studies deemed to have a low risk of bias, a weak association was found among cohort studies (7 studies; adjusted rate ratio, 1.05; 95% CI, 1.02-1.09; P < .001; I2 = 9%) and a similar but nonsignificant association was found among case-control studies (6 studies; adjusted odds ratio, 1.06; 95% CI, 0.88-1.29; P = .54; I2 = 37%). Effect estimates were further from the null when studies with a moderate to high risk of bias were included. Associations between vasectomy and high-grade prostate cancer (6 studies; adjusted rate ratio, 1.03; 95% CI, 0.89-1.21; P = .67; I2 = 55%), advanced prostate cancer (6 studies; adjusted rate ratio, 1.08; 95% CI, 0.98-1.20; P = .11; I2 = 18%), and fatal prostate cancer (5 studies; adjusted rate ratio, 1.02; 95% CI, 0.92-1.14; P = .68; I2 = 26%) were not significant (all cohort studies). Based on these data, a 0.6% (95% CI, 0.3%-1.2%) absolute increase in lifetime risk of prostate cancer associated with vasectomy and a population-attributable fraction of 0.5% (95% CI, 0.2%-0.9%) were calculated. Conclusions and Relevance: This review found no association between vasectomy and high-grade, advanced-stage, or fatal prostate cancer. There was a weak association between vasectomy and any prostate cancer that was closer to the null with increasingly robust study design. This association is unlikely to be causal and should not preclude the use of vasectomy as a long-term contraceptive option.

Tubal anastomosis after previous sterilization: a systematic review.

BACKGROUND: Female sterilization is one of the most common contraceptive methods. A small number of women, however, opt for reversal of sterilization procedures after they experience regret. Procedures can be performed by laparotomy or laparoscopy, with or without robotic assistance. Another commonly utilized alternative is IVF. The choice between surgery and IVF is often influenced by reimbursement politics for that particular geographic location. OBJECTIVE AND RATIONALE: We evaluated the fertility outcomes of different surgical methods available for the reversal of female sterilization, compared these to IVF and assessed the prognostic factors for success. SEARCH METHODS: Two search strategies were employed. Firstly, we searched for randomized and non-randomized clinical studies presenting fertility outcomes of sterilization reversal up to July 2016. Data on the following outcomes were collected: pregnancy rate, ectopic pregnancy rate, cost of the procedure and operative time. Eligible study designs included prospective or retrospective studies, randomized controlled trials, cohort studies, case-control studies and case series. No age restriction was applied. Exclusion criteria were patients suffering from tubal infertility from any other reason (e.g. infection, endometriosis and adhesions from previous surgery) and studies including <10 participants. The following factors likely to influence the success of sterilization reversal procedures were then evaluated: female age, BMI and duration and method of sterilization. Secondly, we searched for randomized and non-randomized clinical studies that compared reversal of sterilization to IVF and evaluated them for pregnancy outcomes and cost effectiveness. OUTCOMES: We included 37 studies that investigated a total of 10 689 women. No randomized controlled trials were found. Most studies were retrospective cohort studies of a moderate quality. The pooled pregnancy rate after sterilization reversal was 42-69%, with heterogeneity seen from the different methods utilized. The reported ectopic pregnancy rate was 4-8%. The only prognostic factor affecting the chance of conception was female age. The surgical approach (i.e. laparotomy [microscopic], laparoscopy or robotic) had no impact on the outcome, with the exception of the macroscopic laparotomic technique, which had inferior results and is not currently utilized. For older women, IVF could be a more cost-effective alternative for the reversal of sterilization. However, direct comparative data are lacking and a cut-off age cannot be stated. WIDER IMPLICATIONS: In sterilized women who suffer regret, surgical tubal re-anastomosis is an effective treatment, especially in younger women. However, there is a need for randomized controlled trials comparing the success rates and costs of surgical reversal with IVF.

Committee Opinion No 695 Summary: Sterilization of Women: Ethical Issues and Considerations.

Sterilization is the most common method of contraception among married couples, with nearly twice as many couples choosing female partner sterilization over male sterilization. Although sterilization is among the most straightforward surgical procedures an obstetrician-gynecologist performs, it is enormously complex when considered from a historical, sociological, or ethical perspective. Sterilization practices have embodied a problematic tension, in which some women who desired fertility were sterilized without their knowledge or consent, and other women who wanted sterilization to limit their family size lacked access to it. An ethical approach to the provision of sterilization must, therefore, promote access for women who wish to use sterilization as a method of contraception, but at the same time safeguard against coercive or otherwise unjust uses. This Committee Opinion reviews ethical issues related to the sterilization of women and outlines an approach to providing permanent sterilization within a reproductive justice framework that recognizes that all women have a right to pursue and to prevent pregnancy.

Committee Opinion No. 695: Sterilization of Women: Ethical Issues and Considerations.

Sterilization is the most common method of contraception among married couples, with nearly twice as many couples choosing female partner sterilization over male sterilization. Although sterilization is among the most straightforward surgical procedures an obstetrician-gynecologist performs, it is enormously complex when considered from a historical, sociological, or ethical perspective. Sterilization practices have embodied a problematic tension, in which some women who desired fertility were sterilized without their knowledge or consent, and other women who wanted sterilization to limit their family size lacked access to it. An ethical approach to the provision of sterilization must, therefore, promote access for women who wish to use sterilization as a method of contraception, but at the same time safeguard against coercive or otherwise unjust uses. This Committee Opinion reviews ethical issues related to the sterilization of women and outlines an approach to providing permanent sterilization within a reproductive justice framework that recognizes that all women have a right to pursue and to prevent pregnancy.

Robotic-assisted laparoscopy in reproductive surgery: a contemporary review.

Robotic surgery is a conceptual fusion of the conventional open surgery and the minimally invasive laparoscopic surgery. We reviewed the current role of robotic-assisted laparoscopy in the field of reproductive surgery by a literature search in PubMed database. We analyzed the reported advantages and limitations of the use of robotics in reproductive surgeries like myomectomy, tubal reanastomosis, endometriosis, ovarian tissue cryopreservation, and ovarian transposition. Overall, robotic assistance in reproductive surgery resulted in decreased blood loss, less post-operative pain, shorter hospital stay, and faster convalescence, whereas reproductive outcomes were similar to open/laparoscopic approaches. The main drawbacks of robotic surgery were higher cost and longer operating times. It is as safe and effective as the conventional laparoscopy and represents a reasonable alternate to abdominal approach. Procedures that are technically challenging with the conventional laparoscopy can be performed with robotic assistance. It has advantages of improved visualization and Endowrist™ movements allowing precise suturing. This helps to overcome the limitations of laparoscopy, especially in complicated procedures, and may shorten the steep learning curve in minimal invasive surgery. Randomized controlled trials looking at both short- and long-term outcomes are warranted to strengthen the role of robotic surgery in the field of reproductive surgery.

Robot-assisted segmental resection of tubal pregnancy followed by end-to-end reanastomosis for preserving tubal patency and fertility: An initial report.

The objective of this study was to evaluate whether robotic tubal reanastomosis after segmental resection of tubal pregnancy is a feasible means of preserving tubal integrity and natural fertility in those with compromised contralateral tubal condition.The study was performed at a university medical center in a retrospective manner where da Vinci robotic system-guided segmental resection of tubal ectopic mass followed by reanastomosis was performed to salvage tubal patency and fertility in those with a single viable fallopian tube. Of the 17 patients with tubal pregnancies that were selected, 14 patients with successful tubal segmental resection and reanastomosis were followed up. The reproducibility of anastomosis success and cumulative pregnancy rates of up to 24 months were analyzed.Patient mean age was 28.88 ±â€Š4.74 years, mean amenorrheic period was 7.01 ±â€Š1.57 weeks and mean human chorionic gonadotropin (hCG) level was 9289.00 ±â€Š7510.00 mIU/mL. The overall intraoperative cancellation rate due to unfavorable positioning or size of the tubal mass was 17.65% (3/17), which was converted to either salpingectomy or milking of ectopic mass. Of the 14 attempted, anastomosis for all 14 cases was successful, with 1 anastomotic leakage. One patient wishing to postpone pregnancy and 2 patients where patency of the contralateral tube was confirmed during the operation, were excluded from the pregnancy outcome analysis. Cumulative pregnancy rate was 63.64% (7/11), with 3 (27.27%) ongoing pregnancies, 3 (27.27%) livebirths, and 1 missed abortion at 24 months. During the follow-up, hysterosalpingography (HSG) was performed at 6 months for those who consented, and all 10 fallopian tubes tested were patent. No subsequent tubal pregnancies occurred in the reananstomosed tube for up to a period 24 months.For patients with absent or defective contralateral tubal function, da Vinci-guided reanastomosis after segmental resection of tubal pregnancy is feasible for salvaging tubal patency and fertility.

Effectiveness of bilateral tubotubal anastomosis in a large outpatient population.

STUDY QUESTION: Is bilateral tubotubal anastomosis a successful treatment in an outpatient patient population? SUMMARY ANSWER: For women wanting children after tubal sterilization, bilateral tubotubal anastomosis is an effective outpatient treatment. WHAT IS KNOWN ALREADY: With the current emphasis in reproductive medicine on high technology procedures, the effectiveness of female surgical sterilization reversal is often overlooked. Previous clinical studies of tubal sterilization reversal have been mostly retrospective analyses of small patient populations. STUDY DESIGN, SIZE, DURATION: A cohort of women who underwent outpatient bilateral tubotubal anastomosis from January 2000 to June 2013 was followed prospectively until December 2014 to determine the proportions of women undergoing the procedure who became pregnant and who had live births. Data were collected at the time of pregnancy. Differences in pregnancy rates and live birth rates associated with age, race and sterilization method were evaluated. PARTICIPANTS/MATERIALS, SETTING, METHODS: A total of 6692 women, aged 20-51 years, underwent outpatient bilateral tubotubal anastomosis. MAIN RESULTS AND THE ROLE OF CHANCE: The crude overall pregnancy rate was 69%. The crude overall birth rate was 35%. Results varied according to age at sterilization reversal and the method of sterilization. Women under 30 years of age at reversal of ring/clip sterilizations had an 88% pregnancy rate and 62% birth rate. Pregnancy and birth rates declined as age increased at sterilization reversal. Coagulation sterilization reversals resulted in the lowest rates of pregnancies and births. Ligation/resection reversals had intermediate success rates. LIMITATIONS, REASONS FOR CAUTION: Limitations of our study include probable underreporting of pregnancies based on patient-initiated reports; possible errors in the reporting of pregnancies or early miscarriages that may have been based solely on home pregnancy tests; and probable over-reporting of the diagnosis of ectopic pregnancies. We identified age and sterilization method as being associated with subsequent pregnancy, however, in order to be considered predictive, the associations would need to be validated in an independent second prospectively studied group of representative patients. Finally, we also included patients in the study population who had additional surgical procedures performed at the time of tubotubal anastomosis (e.g. uterine myomectomy, fimbrioplasty, ovarian cystectomy and adhesiolysis), factors that could result in differences in pregnancy statistics in our study versus other patient populations. WIDER IMPLICATIONS OF THE FINDINGS: The results of this study can help inform patients and clinicians about this low technology alternative to IVF. STUDY FUNDING/COMPETING INTERESTS: None. TRIAL REGISTRATION NUMBER: N/A.

[Regret of female sterilization]. / Når kvinder fortryder sterilization.

Regret of sterilization is inversely correlated to age at the time of sterilization. The minimum age for legal sterilization in Denmark has recently been lowered to 18 years. In Denmark surgical refertilization has almost completely been replaced by in vitro fertilization (IVF). In recent literature pregnancy results after surgical refertilization are easily comparable to IVF. Refertilization may in some cases be advantageous to IVF treatment. Women requesting reversal of sterilization should be offered individualized evaluation and differentiated treatment. It is recommended that surgical refertilization is performed at very few centres.