Proximity of percutaneous tibial nerve stimulation needle insertion to surrounding anatomic structures: a cadaveric study.

BACKGROUND: Percutaneous tibial nerve stimulation is a third-line treatment for overactive bladder and urgency urinary incontinence. During the procedure, a needle is inserted cephalad to the medial malleolus and posterior to the tibia. In recent years, permanent implants and leads have been developed for insertion into the medial ankle via a small incision. There are many important structures present in the medial compartment of the ankle, including the great saphenous vein, saphenous nerve, tibial nerve, posterior tibial vessels, and tendons of the posterior compartment leg muscles. OBJECTIVE: The primary objective of this study was to identify the proximity of the percutaneous tibial nerve stimulation needle placed per Food and Drug Administration-approved device instructions to nearby important anatomic structures. The secondary objectives were to identify the proximity of the tibial nerve to the needle site, identify clinically relevant ankle anatomic structures, and confirm the tibial nerve and posterior tibial vasculature by histologic analysis. STUDY DESIGN: Detailed medial ankle dissections were performed bilaterally on 10 female lightly embalmed anatomic donors (cadavers) obtained from the Willed Body Program at the University of Louisville. A pin was inserted at the percutaneous tibial nerve stimulation needle site, and the medial ankle was minimally dissected so the surrounding anatomic structures were visible but not disrupted. The shortest distance from the pin to the selected structures of the medial ankle region was measured. On completion of each dissection and set of measurements, tissue was harvested for histologic examination. The distances between the pin and each structure were assessed using means and standard deviations. A paired t test was used to assess the difference in the locations between the left and right ankles. Statistical analysis was performed on left-sided, right-sided, and combined measurements. An 80% prediction interval was found to represent the expected range of values for the measurement of a new cadaver or patient, and the 95% confidence interval of the mean was computed to characterize the average distance across all cadavers or patients. RESULTS: The medial ankle of 10 adult female lightly embalmed cadavers were examined bilaterally. Dissections were completed from October 2021 to July 2022. Of note, 80% prediction intervals for the tibial nerve, the posterior tibial artery or vein, and the flexor digitorum longus tendon had a lower range of 0.0 mm from the pin and extending to 12.1, 9.5, and 13.9 mm, respectively. Moreover, 2 of the structures were found to be asymmetrical between the right and left ankles. The great saphenous vein was further from the pin on the left (20.5 mm [standard deviation of 6.4 mm] on the left vs 18.1 mm [standard deviation of 5.3 mm] on the right; P=.04). The calcaneal (Achilles) tendon was further from the pin on the right side (13.2 mm [standard deviation of 6.8 mm] vs 7.9 mm [standard deviation of 6.7 mm]; P=.04). Tibial neurovascular structures were confirmed with microscopic analysis. CONCLUSION: The anatomic structures within the medial ankle lie unexpectedly close to the percutaneous tibial nerve stimulation needle site as noted per Food and Drug Administration-approved device instructions. There is a possibility that some medial ankle structures are not symmetrical. It is crucial that practitioners understand medial ankle anatomy when performing percutaneous tibial nerve stimulation or permanent device insertion.

General anesthesia versus regional anesthesia in patients undergoing obliterative vaginal procedures for pelvic organ prolapse.

INTRODUCTION AND HYPOTHESIS: The objective was to compare outcomes in patients receiving general versus regional anesthesia when undergoing obliterative vaginal surgery for pelvic organ prolapse. METHODS: Obliterative vaginal procedures performed from 2010 to 2020 were identified in the American College of Surgeons National Surgical Quality Improvement Program database using Current Procedural Terminology codes. Surgeries were categorized into general anesthesia (GA) or regional anesthesia (RA). Rates of reoperation, readmission, operative time, and length of stay were determined. A composite adverse outcome was calculated including any of the following: nonserious or serious adverse events, 30-day readmission, or reoperation. Propensity score-weighted analysis of perioperative outcomes was performed. RESULTS: The cohort included 6,951 patients, of whom 6,537 (94%) underwent obliterative vaginal surgery under GA and 414 (6%) received RA. When comparing outcomes under the propensity score-weighted analysis, operative times were shorter (median 96 vs 104 min, p<0.01) in the RA group versus GA. There were no significant differences between composite adverse outcomes (10% vs 12%, p=0.06), or readmission (5% vs 5%, p=0.83) and reoperation rates (1% vs 2%, p=0.12) between the RA and GA groups. Length of stay was shorter in patients receiving GA than in those receiving RA, especially when undergoing concomitant hysterectomy (67% discharged within 1 day in GA vs 45% in RA, p<0.01). CONCLUSIONS: Composite adverse outcomes, reoperation rates, and readmission rates were similar in patients who received RA for obliterative vaginal procedures compared with GA. Operative times were shorter in patients receiving RA than in those receiving GA, and length of stay was shorter in patients receiving GA than in those receiving RA.

Video Playback as an Educational Tool for Improving Resident Laparoscopic Performance: A Randomized Controlled Trial.

STUDY OBJECTIVE: In this single-masked randomized controlled study, we evaluate whether watching video recordings of oneself performing Fundamentals of Laparoscopic Skills (FLS) exercises results in an improvement on the 30-point Global Operative Assessment of Laparoscopic Skills (GOALS) assessment among Obstetrics and Gynecology (Ob/Gyn) residents. DESIGN: Twenty-three Ob/Gyn residents in the 2020-2021 academic year completed the FLS exercises while being timed, video recorded, and receiving real-time feedback from an Ob/Gyn faculty member. Baseline GOALS assessment was completed by participants and faculty. After the intervention, all participants then repeated the FLS exercises while being timed and were again scored using the GOALS assessment. Each participant completed the study in a single session. In addition, all participants completed a pre- and post-test survey. SETTING: University of Louisville Laparoscopic Skills Labortaory. PARTICIPANTS: University of Louisville Ob/Gyn residents in the 2020-2021 academic year. INTERVENTION: Twelve participants were randomized to the intervention and were allowed to watch their video recording in addition to receiving verbal feedback whereas the remaining 11 received verbal feedback only. MEASUREMENTS AND MAIN RESULTS: There were significant improvements in faculty (p <.01) and self-reported GOALS scores (p <.01) when comparing both the intervention and control group with baseline scores. The intervention group improved by 3.2 points more than that of the control group based on masked faculty evaluation (95% confidence interval, 1.4-5.0 points; p <.01). The difference was not significant in resident self-scores. Overall time improved for all participants (15:54 ± 0.21 minutes before and 13:13 ± 0.14 minutes after), but this difference was not significant between the 2 groups. Higher postgraduate year (PGY) residents reported significantly more comfort performing laparoscopic tasks, earned higher GOALS score (faculty and self-scores), and completed the first set of exercises in less time. A significant interaction between PGY and intervention was detected with improvement in GOALS score most strongly associated with PGY4 residents (p <.01). CONCLUSION: Although all learners objectively benefit from watching recordings of themselves performing surgical tasks, advanced learners may benefit the most when video recordings are used as an educational tool.

Robotic sacrohysteropexy: an instructional video for uterovaginal prolapse repair in patients with desired uterine preservation.

INTRODUCTION: Minimally invasive sacrohysteropexy is a feasible and safe option for the treatment of uterovaginal prolapse in patients with prior sacrorectopexy. This video demonstrates an approach to robotic sacrohysteropexy while also adapting for a patient's prior sacrorectopexy. Sacrohysteropexy has been shown to be a viable option in women undergoing pelvic reconstructive surgery for the repair of uterovaginal prolapse. METHODS: This video demonstrates key steps in performing a robotic sacrohysteropexy without compromising the integrity of the patient's prior sacrorectopexy. First, incision and dissection of the anterior and posterior peritoneum overlying the cervical stroma is carried out. Tunnels are made through the avascular plane of the broad ligament lateral to the uterine vessels, so as not to compromise uterine blood supply. The anterior and posterior arms of the mesh are attached with interrupted sutures to the cervical stroma. The presacral space is entered and dissected such that the anterior longitudinal ligament is exposed. Care is taken not to disrupt the sutures from the prior sacrorectopexy as the sacral arm of the mesh is secured with two interrupted stitches. CONCLUSION: At completion of the procedure the patient had a well-supported apical compartment.

When prolapse cannot be reduced: incarcerated procidentia due to pelvic mass.

INTRODUCTION AND HYPOTHESIS: Our objective is to demonstrate a surgical approach to the treatment of incarcerated procidentia with obstructed ureters due to a pelvic mass. METHODS: A 61-year-old woman presented with constipation, vaginal swelling, and difficulty voiding. On examination she had complete procidentia, which could not be reduced with gentle pressure. On imaging the prolapse appeared to contain a large pelvic mass measuring 11.5 cm in its greatest diameter, with features consistent with a mature teratoma. She was also noted to have bilateral ureteral obstruction and prominent hydronephrosis. After unsuccessful prolapse reduction under anesthesia, Bovie electrocautery was used to perform a posterior colpotomy. The obstructing mass was dissected away from the uterus and its connecting pedicle transected. The prolapse could then be reduced and a robotic hysterectomy performed. RESULTS: Pathology showed multiple pelvic masses including an 8-cm necrotic cystic nodule most consistent with uterine fibroids and a 4.5-cm mature cystic teratoma with associated seromucinous cystadenoma of the left ovary. Bilateral nephrostomy tubes were placed postoperatively. CONCLUSION: Incarcerated procidentia is an uncommon occurrence, which in rare cases may be due to a pelvic mass. Surgical management may be required with colpotomy for removal of the pelvic mass in order to reduce the prolapse and resolve the case.

Measurement of Physical Activity Using Fitness Trackers Before and After Midurethral Sling.

IMPORTANCE: Urinary incontinence can be a barrier to performing physical activities for many women. A midurethral sling (MUS) has shown symptom improvement for women experiencing stress urinary incontinence (SUI), suggesting the hypothesis that physical activity rates should increase after treatment. OBJECTIVE: The aim of this study was to determine the change in objectively measured physical activity levels in women following placement of MUS for SUI. STUDY DESIGN: In this prospective cohort study, patients undergoing MUS placement, with or without concomitant pelvic reconstructive surgery, were provided a commercial activity tracker. Physical activity was tracked for at least 1 week preoperatively and up to 6 months postoperatively. Participants were required to wear the tracker for at least 2 weeks in the postoperative period. The primary outcome, mean caloric daily expenditure (MCDE), was compared preoperatively and postoperatively. RESULTS: Seventy-two patients met criteria for data inclusion. The device was worn for a mean of 18.4 ± 12.1 days preoperatively and 91.7 ± 53.3 days postoperatively. Mean participant age was 51.9 ± 9.4 years. The MCDE was significantly higher postoperatively (preoperatively: 1,673 kcal/d vs postoperatively: 2,018 kcal/d; P < 0.01). There were no significant differences in postoperative MCDE in participants who had only MUS as the primary procedure versus participants who also had a concomitant procedure (2,020 ± 216 kcal/d vs 2,015 ± 431 kcal/d; P = 0.95). Of participants with class II/III obesity, 45% had at least a 500 kcal/d increase postoperatively. CONCLUSIONS: Treatment of SUI with MUS is associated with a significantly greater caloric expenditure in the postoperative period.

Postoperative Complications of Appendectomy in Gynecologic Laparoscopic Surgery for Benign Indications.

OBJECTIVE: To assess whether concomitant appendectomy in patients who undergo laparoscopic surgery for benign gynecologic indications is associated with increased rates of complications in the 30-day postoperative period. METHODS: The American College of Surgeons National Surgical Quality Improvement Program database was used to identify patients who underwent laparoscopic surgery by a gynecologist. Patients were excluded if they underwent open abdominal surgeries, bowel resections, urogynecologic surgeries, or if diagnoses of cancer or appendicitis were present. There were 246,987 patients included in the population cohort from 2010 to 2020. Demographic information and postoperative outcomes of patients who underwent concomitant appendectomy were compared with patients who did not undergo appendectomy. A matched cohort was created by computing propensity scores, and outcomes were again compared between groups. All patients undergoing appendectomy were 1:1 matched to a unique patient who did not undergo appendectomy using a greedy matching based on the propensity score calculated from demographic and surgical characteristics. RESULTS: A total of 1,760 patients (0.7%) underwent concomitant appendectomy. There was an 8.0% complication rate in the appendectomy group, compared with 5.5% in the group of those without appendectomy ( P <.001), and this was similar to the results in the propensity-matched sample. Patients who underwent appendectomy had significantly higher rates of readmission (4.3% vs 2.3%), which remained significant in the propensity-matched sample. There were no differences in the rates of postoperative thromboembolic events, blood transfusion, or reoperation. CONCLUSION: Patients who are undergoing concomitant appendectomy have an increased risk of any complication and hospital readmission. Additional studies may be conducted to identify patients with optimal risk benefit profiles when considering performing concomitant appendectomy at time of gynecologic surgery.

Cranberry Supplementation Does Not Reduce Urinary Tract Infections in Patients With Indwelling Catheters After Pelvic Reconstructive Surgery.

OBJECTIVES: Urinary tract infections (UTIs) are common after pelvic reconstructive surgery, likely due to high rates of urinary retention. We sought to determine if prescription of cranberry capsules reduced UTIs in postoperative patients requiring catheter use. METHODS: This was an institutional review board-approved retrospective cohort study. Two 6-month periods were compared: April to September 2015, before cranberry capsules were incorporated, and April to September 2016, after cranberry capsules were implemented. Our study population included patients discharged with a catheter after pelvic reconstructive surgery. All charts were reviewed for demographics, perioperative data, and urine cultures up to 6 weeks postoperatively. A UTI was defined as treatment with antibiotics or positive cultures. Statistical analysis was performed; logistic regression evaluated for relationships between UTI and other factors. Our a priori sample size calculation determined 88 subjects per group would be necessary. RESULTS: Over the 2 periods, 167 patients met inclusion criteria: 71 before and 96 after cranberry implementation. The 2 cohorts were similar in all data. Regarding incidence of UTI, rates were overall high and not significantly different between groups (76% before cranberry vs 69% with cranberry; P = 0.299). The median duration of catheter use was 8 days in both cohorts. The UTI was most likely to occur in the second week after surgery. Logistic regression revealed no associations between age, surgery type, duration of catheter use, and UTI. CONCLUSIONS: In this retrospective study, prescription of cranberry capsules did not significantly reduce UTI rates among patients with urinary catheters after pelvic reconstructive surgery.

Relationships between the weaning period and the introduction of complementary foods in the transmission of gastrointestinal parasitic infections in children in Honduras.

PURPOSE: This study was to investigate weaning practices used by mothers when transitioning infants from breast milk to complementary foods and to determine the role these foods have in the transmission of gastrointestinal parasites. PARTICIPANTS AND METHODS: On average, of the 175 mothers extensively interviewed, 93% said they had breast-fed their infants. Approximately 20.8% of mothers had added some other liquid to their infant's diet at 3 months, while most mothers had added other liquids at 6 months (39.0%) and >6 months (32.1%). Some mothers expanded food offerings to infants before 3 months. The percentage of mothers who had added other liquids to their infants' diet was reported by age of the infant: as early as 1 day (2.5%), <1 week (1.9%), first month (3.1%), 3 months (20.8%), 6 months (39.0%), and >6 months (32.1%). These foods included fruit, vegetables, meat, and grains. The maximum age a child was found to be still breastfeeding was 13 years. RESULTS: Forty percent of mothers involved in this survey reported that their children were diagnosed and/or treated for gastrointestinal parasitic infection. Routes of infection of protozoan and helminth parasites likely resulted from contaminated complementary foods and water given to infants while still breast-feeding or from contaminated foods after breast-feeding had been completed. Contaminated water is a likely source of protozoan parasites. Contaminated water was fed to infants, mixed with formula or complementary foods, or used to wash bottles for infant feeding. There was an absence of hand-washing by children and mothers before eating or while preparing foods. CONCLUSION: The major source of soil-transmitted helminth infections was likely the result of unwashed or uncooked pureed fruit or vegetables used as complementary foods, unpasteurized animal milk, insanitary food storage, poor living conditions with exposed dirt floors, and exposure to roaming domestic animals.