Serum estradiol levels decrease after oophorectomy in transmasculine individuals on testosterone therapy.

Transmasculine individuals, considering whether to undergo total hysterectomy with bilateral salpingectomy, have the option to have a concomitant oophorectomy. While studies have evaluated hormone changes following testosterone therapy initiation, most of those patients have not undergone oophorectomy. Data are currently limited to support health outcomes regarding the decision to retain or remove the ovaries. We performed a retrospective chart review of transmasculine patients maintained on high-dose testosterone therapy at a single endocrine clinic in Vancouver, British Columbia, Canada. Twelve transmasculine individuals who underwent bilateral oophorectomy and had presurgical and postsurgical serum data were included. We identified 12 transmasculine subjects as controls, who were on testosterone therapy and did not undergo oophorectomy, but additionally matched to the first group by age, testosterone dosing regimen, and body mass index. There was a statistically significant decrease in the estradiol levels of case subjects postoophorectomy, when compared to presurgical estradiol levels (P = 0.02). There was no significant difference between baseline estradiol levels between control and case subjects; however, the difference in estradiol levels at follow-up measurements was significant (P = 0.03). Total testosterone levels did not differ between control and case subjects at baseline and follow-up (both P > 0.05). Our results demonstrate that oophorectomy further attenuates estradiol levels below what is achieved by high-dose exogenous testosterone alone. Correlated clinical outcomes, such as impacts on bone health, were not available. The clinical implications of oophorectomy versus ovarian retention on endocrinological and overall health outcomes are currently limited.

Health Outcomes Associated With Having an Oophorectomy Versus Retaining One's Ovaries for Transmasculine and Gender Diverse Individuals Treated With Testosterone Therapy: A Systematic Review.

INTRODUCTION: The transmasculine and gender diverse (TMGD) spectrum includes transgender men and non-binary individuals whose sex was assigned female at birth. Many TMGD patients pursue treatment with exogenous testosterone to acquire masculine characteristics. Some may choose to undergo gynecological gender-affirming surgery for total hysterectomy with bilateral salpingectomy and/or bilateral oophorectomy (TH/BSO). The decision to retain or remove the ovaries in the setting of chronic testosterone therapy has implications on reproductive health, oncologic risk, endocrine management, cardiovascular health, bone density and neurocognitive status. However, there is limited evidence on the long-term outcomes from this intervention. OBJECTIVE: Here we review health-related outcomes of oophorectomy in TMGD population treated with chronic testosterone therapy in order to guide clinicians and patients in the decision to retain or remove their ovaries. METHOD: We conducted a systematic literature review following PRISMA guidelines. MEDLINE, EMBASE, ClinicalTrials.gov, and Cochrane Library databases were searched for peer-reviewed studies published prior to October 26, 2021 that: (i) included transgender men/TMGD individuals in the study populations; (ii) were full-text randomized controlled studies, case reports, case series, retrospective cohort studies, prospective cohort studies, qualitative studies, and cross-sectional studies; and (iii) specifically discussed ovaries, hysterectomy, oophorectomy, ovariectomy, or gonadectomy. RESULTS: We identified 469 studies, of which 39 met our inclusion criteria for this review. Three studies discussed fertility outcomes, 11 assessed histopathological changes to the ovaries, 6 discussed ovarian oncological outcomes, 8 addressed endocrine considerations, 3 discussed cardiovascular health outcomes, and 8 discussed bone density. No studies were found that examined surgical outcomes or neurocognitive changes. CONCLUSION: There is little information to guide TMGD individuals who are considering TH/BSO versus TH/BS with ovarian retention. Our review suggests that there is limited evidence to suggest that fertility preservation is successful after TH/BS with ovarian retention. Current evidence does not support regular reduction in testosterone dosing following oophorectomy. Estradiol levels are likely higher in individuals that choose ovarian retention, but this has not been clearly demonstrated. Although bone mineral density decreases following oophorectomy, data demonstrating an increased fracture risk are lacking. No studies have described the specific impact on neurocognitive function, or changes in operative complications. Further research evaluating long-term health outcomes of oophorectomy for TMGD individuals treated with chronic testosterone therapy is warranted to provide comprehensive, evidence-based healthcare to this patient population. Sahil Kumar, Smita Mukherjee, Cormac O'Dwyer, et al. Health Outcomes Associated With Having an Oophorectomy Versus Retaining One's Ovaries for Transmasculine and Gender Diverse Individuals Treated With Testosterone Therapy: A Systematic Review. Sex Med Rev 2022;10:636-647.

Health Outcomes Associated With Having an Oophorectomy Versus Retaining One's Ovaries for Transmasculine and Gender Diverse Individuals Treated With Testosterone Therapy: A Systematic Review.

INTRODUCTION: The transmasculine and gender diverse (TMGD) spectrum includes transgender men and non-binary individuals whose sex was assigned female at birth. Many TMGD patients pursue treatment with exogenous testosterone to acquire masculine characteristics. Some may choose to undergo gynecological gender-affirming surgery for total hysterectomy with bilateral salpingectomy and/or bilateral oophorectomy (TH/BSO). The decision to retain or remove the ovaries in the setting of chronic testosterone therapy has implications on reproductive health, oncologic risk, endocrine management, cardiovascular health, bone density and neurocognitive status. However, there is limited evidence on the long-term outcomes from this intervention. OBJECTIVE: Here we review health-related outcomes of oophorectomy in TMGD population treated with chronic testosterone therapy in order to guide clinicians and patients in the decision to retain or remove their ovaries. METHOD: We conducted a systematic literature review following PRISMA guidelines. MEDLINE, EMBASE, ClinicalTrials.gov, and Cochrane Library databases were searched for peer-reviewed studies published prior to October 26, 2021 that: (i) included transgender men/TMGD individuals in the study populations; (ii) were full-text randomized controlled studies, case reports, case series, retrospective cohort studies, prospective cohort studies, qualitative studies, and cross-sectional studies; and (iii) specifically discussed ovaries, hysterectomy, oophorectomy, ovariectomy, or gonadectomy. RESULTS: We identified 469 studies, of which 39 met our inclusion criteria for this review. Three studies discussed fertility outcomes, 11 assessed histopathological changes to the ovaries, 6 discussed ovarian oncological outcomes, 8 addressed endocrine considerations, 3 discussed cardiovascular health outcomes, and 8 discussed bone density. No studies were found that examined surgical outcomes or neurocognitive changes. CONCLUSION: There is little information to guide TMGD individuals who are considering TH/BSO versus TH/BS with ovarian retention. Our review suggests that there is limited evidence to suggest that fertility preservation is successful after TH/BS with ovarian retention. Current evidence does not support regular reduction in testosterone dosing following oophorectomy. Estradiol levels are likely higher in individuals that choose ovarian retention, but this has not been clearly demonstrated. Although bone mineral density decreases following oophorectomy, data demonstrating an increased fracture risk are lacking. No studies have described the specific impact on neurocognitive function, or changes in operative complications. Further research evaluating long-term health outcomes of oophorectomy for TMGD individuals treated with chronic testosterone therapy is warranted to provide comprehensive, evidence-based healthcare to this patient population.

Osmotic Dilator Intra-Abdominal Perforation: A Case Report.

BACKGROUND: This report describes an unusual case of a retained hygroscopic osmotic dilator following second trimester dilation and evacuation. CASE: A 24-year-old woman presented for elective pregnancy termination at 16 weeks gestational age. A cervical osmotic dilator could not be retrieved and fractured on attempted removal. Magnetic resonance imaging showed perforation through the cervix, possibly traversing the peritoneum. Hysteroscopy and laparoscopy were performed to remove the retained dilator. Significant inflammation and mesenteric adhesions surrounded the osmotic dilator, which was successfully removed. CONCLUSION: This is the first reported case of an intra-abdominal osmotic dilator. Although this device is inert, close follow-up and timely retrieval, possibly with hysteroscopy or laparoscopy, are recommended to minimize the resulting inflammatory response.

A quality improvement and educational initiative to reduce morbidity associated with massive postpartum hemorrhage.

OBJECTIVE: To determine the effect of a quality improvement and educational initiative on blood transfusion rates and patient morbidity from massive postpartum hemorrhage. METHODS: A retrospective chart review was performed of massive postpartum hemorrhage (mPPH) at an urban tertiary care center. Inclusion criteria are women with mPPH over 20 weeks gestational age. The primary outcome was the number of packed red blood cell (pRBC) transfusions required. Two time periods were compared-the control period (January 2006-December 2011), and the educational period (January 2012-December 2015) by calculating an incidence rate ratio using Poisson regression. RESULTS: Among 189 women with mPPH, 107 cases occurred during the control period and 82 during the educational period. In the educational period, there were 13% (95% confidence interval [CI] 2%-23%) fewer pRBC and 16% (95% CI 1%-29%) fewer fresh frozen plasma (FFP) units transfused compared with the control period. There was a decrease of 58 minutes (95% CI -106 to -9.52) of the median time from diagnosis of mPPH to transfusion of FFP. CONCLUSION: The quality improvement educational initiative decreased the number of pRBC and FFP transfusions required, and shortened the latency interval to transfusion of FFP.

No. 286-Surgical Safety Checklist in Obstetrics and Gynaecology.

OBJECTIVE: To provide guidance on the implementation of a surgical safety checklist in the practice of obstetrics and gynaecology. OUTCOMES: Outcomes evaluated include the impact of the surgical safety checklist on surgical morbidity and mortality. EVIDENCE: Medline databases were searched for articles on subjects related to "surgical safety checklist" published in English from January 2001 to January 2011. Results were restricted to systematic reviews, randomized control trials/controlled clinical trials, and observational studies. Searches were updated on a regular basis and incorporated in the guideline to January 2012. VALUES: The quality of evidence was rated with use of the criteria described by the Canadian Task Force on Preventive Health Care. Recommendations for practice were ranked according to the method described by the Task Force (Table). BENEFITS, HARMS, AND COSTS: Implementation of the guideline recommendations will improve the health and well-being of women undergoing obstetrical or gynaecologic surgery. SUMMARY STATEMENTS: RECOMMENDATIONS.

A Randomized Multicenter Study Assessing the Educational Impact of a Computerized Interactive Hysterectomy Trainer on Gynecology Residents.

STUDY OBJECTIVE: To assess the improvement of cognitive surgical knowledge of laparoscopic hysterectomy in postgraduate year (PGY) 1 and 2 gynecology residents who used an interactive computer-based Laparoscopic Hysterectomy Trainer (Red Llama, Inc., Seattle, WA). DESIGN: A multicenter, randomized, controlled study (Canadian Task Force classification I). SETTING: Five departments of obstetrics and gynecology: Keck School of Medicine of the University of Southern California, Los Angeles, CA; University of California, Los Angeles, Los Angeles, CA; University of Washington, Seattle, WA; University of British Columbia, Vancouver, British Columbia, Canada; and University of Toronto, Toronto, Ontario, Canada. PARTICIPANTS: Gynecology residents, fellows, faculty, and minimally invasive surgeons. INTERVENTIONS: The use of an interactive computer-based Laparoscopic Hysterectomy Trainer. MEASUREMENTS AND MAIN RESULTS: In phase 1 of this 3-phase multicenter study, 2 hysterectomy knowledge assessment tests (A and B) were developed using a modified Delphi technique. Phase 2 administered these 2 online tests to PGY 3 and 4 gynecology residents, gynecology surgical fellows, faculty, and minimally invasive surgeons (n = 60). In phase 3, PGY 1 and 2 gynecology residents (n = 128) were recruited, and 101 chose to participate, were pretested (test A), and then randomized to the control or intervention group. Both groups continued site-specific training while the intervention group additionally used the Laparoscopic Hysterectomy Trainer. Participant residents were subsequently posttested (test B). Phase 2 results showed no differences between cognitive tests A and B when assessed for equivalence, internal consistency, and reliability. Construct validity was shown for both tests (p < .001). In phase 3, the pretest mean score for the control group was 242 (standard deviation [SD] = 56.5), and for the intervention group it was 217 (SD = 57.6) (nonsignificant difference, p = .089). The t test comparing the posttest control group (mean = 297, SD = 53.6) and the posttest intervention group (mean = 343, SD = 50.9) yielded a significant difference (p < .001, 95% confidence interval, 48.4-108.8). Posttest scores for the intervention group were significantly better than for the control group (p < .001). CONCLUSION: Using the Laparoscopic Hysterectomy Trainer significantly increased knowledge of the hysterectomy procedure in PGY 1 and 2 gynecology residents.

Teaching Vaginal Surgery to Junior Residents: Initial Validation of 3 Novel Procedure-Specific Low-Fidelity Models.

OBJECTIVE: Competency-based surgical education relies on operative models to teach surgical skills within a curriculum. Low fidelity simulation has been shown to improve surgical performance. Our objectives were: to develop procedure-specific models to teach anterior repair (AR), posterior repair (PR), and vaginal hysterectomy (VH) to junior residents; to establish model reliability and validity. DESIGN: Residents were randomized to control (no training) and intervention (model training) groups. They were filmed while performing a series of tasks. Experts were also filmed. Each video was scored by 2 blinded raters. SETTING: Multicenter collaboration within the Western Society of Pelvic Medicine (Vancouver, Calgary, and Edmonton). Face and content validity were evaluated. A standard scoring tool was developed for performance evaluation. Interrater reliability was assessed using intraclass correlation coefficient. Cronbach α was calculated for internal consistency. Jonckheere-Terpstra test verified whether the scores increased with operator skill level. PARTICIPANTS: A total of 14 junior gynecology residents, 2 urogynecology fellows, and 3 staff urogynecologists were rated by a total of 6 gynecologic surgeons who scored 42 videos each. RESULTS: Experienced pelvic surgeons from 3 participating sites agreed the models captured essential elements of real surgical skills (face validity) and of the true procedures (content validity). Intraclass correlation coefficient was adequate (AR = 0.86, PR = 0.90, and VH = 0.87). Cronbach α for the total scores was adequate (AR = 0.85, PR = 0.8, and VH = 0.71). Performance score increased with operator skill level for all 3 procedures (AR, p = <0.001; PR, p = 0.008; and VH, p = 0.007). CONCLUSIONS: Our low fidelity procedure-specific vaginal surgery models had adequate initial validity. Future research will investigate transferability of acquired skills to the operating room.

Surgical safety checklist in obstetrics and gynaecology.

OBJECTIVE: To provide guidance on the implementation of a surgical safety checklist in the practice of obstetrics and gynaecology. OUTCOMES: OUTCOMES evaluated include the impact of the surgical safety checklist on surgical morbidity and mortality. EVIDENCE: Medline databases were searched for articles on subjects related to "surgical safety checklist" published in English from January 2001 to January 2011. Results were restricted to systematic reviews, randomized control trials/controlled clinical trials, and observational studies. Searches were updated on a regular basis and incorporated in the guideline to January 2012. VALUES: The quality of evidence was rated with use of the criteria described by the Canadian Task Force on Preventive Health Care. Recommendations for practice were ranked according to the method described by the Task Force (Table). BENEFITS, HARMS, AND COSTS: Implementation of the guideline recommendations will improve the health and well-being of women undergoing obstetrical or gynaecologic surgery. Summary Statements and Recommendations Summary Statements 1. Surgery may account for up to 40% of all hospital adverse events. (II-2) 2. Good communication is essential for safer surgical care, as communication failure is common in the operating room. (III) 3. The concept of a surgical safety checklist has been studied globally, and there have been decreases in complications and mortality when the checklist has been implemented. (II-1) 4. Emergency cases such as a "crash" Caesarean section will require a modified approach that is centre- and situation-dependent. (III) 5. The SOGC endorses the adoption of the surgical safety checklist in obstetrics and gynaecology. (III) Recommendations 1. The surgical safety checklist should be adopted by all surgical care providers and their respective institutions to improve patient safety. (II-1A) 2. Surgeons should be familiar with, advocate for the use of, and participate in all 3 parts of the surgical safety checklist. (II-1A) 3. The surgical safety checklist may be modified and adapted for use in surgical obstetrics cases. (II-2A).

Chemical communication between regenerating motor axons and Schwann cells in the growth pathway.

There are receptors on denervated Schwann cells that may respond to the neurotransmitters that are released from growth cones of regenerating motor axons. In order to ascertain whether the interaction of the transmitters and their receptors plays a role during axon regeneration, we investigated whether pharmacological block of the interaction would reduce the number of motoneurons that regenerate their axons after nerve section and surgical repair. Peripheral nerves in the hindlimbs of rats and mice were cut and repaired, and various drugs were applied to the peripheral nerve stump either directly or via mini-osmotic pumps over a 2-4-week period to block the binding of acetylcholine to nicotinic and muscarinic acetylcholine receptors (AChRs: alpha-bungarotoxin, tubocurarine, atropine and, gallamine) and binding of ATP to P2Y receptors (suramin). In rats, the nicotinic AChR antagonistic drugs and suramin reduced the number of motoneurons that regenerated their axons through the distal nerve stump. In mice, suramin significantly reduced the upregulation of the carbohydrate HNK-1 on the Schwann cells in the distal nerve stump that normally occurs during motor axon regeneration. These data indicate that chemical communication between regenerating axons and Schwann cells during axon regeneration via released neurotransmitters and their receptors may play an important role in axon regeneration.