Faculty Bibliography

PURPOSE/OBJECTIVE:To evaluate if question phrasing and patient numeracy impact estimation of urinary frequency. MATERIALS AND METHODS/METHODS:We conducted a prospective study looking at reliability of a patient interview in assessing urinary frequency. Prior to completing a voiding diary, patients estimated daytime and nighttime frequency in 3 ways: 1) how many times they urinated 2) how many hours they waited in between urinations 3) how many times they urinated over the course of 4 hours. Numeracy was assessed using the Lipkus Numeracy Scale. RESULTS:Seventy-one patients completed the study. Correlation of estimates from questions 1, 2 and 3 to the diary were not statistically different. Prediction of nighttime frequency was better than daytime for all questions (correlation coefficients 0.751, 0.754 and 0.670 vs 0.596, 0.575, and 0.460). When compared to the diary, Question 1 underestimated (8.5 vs 9.7, p=0.014) while Question 2 overestimated (11.8 vs 9.7, p=0.027) recorded voids on a diary. All questions overpredicted nighttime frequency with 2.6, 2.9 and 3.9 predicted vs 1.6 recorded voids (p <0.001). Although not statistically significant, for each question, the predicted frequency of numerate patients was more correlated to the diary than those of innumerate patients. CONCLUSIONS:When compared to a voiding diary for daytime urinary frequency, asking patients how many times they urinated underestimated, and asking patients how many hours they waited between urinations overestimated the number recorded voids. Regardless of phrasing, patients overestimated nighttime urination. Patients in our functional urology population have limited numeracy, which may impact accuracy of urinary frequency estimation.

OBJECTIVES/OBJECTIVE:To evaluate whether progression to maintenance percutaneous tibial nerve stimulation (PTNS) was related to perceived global impression of improvement (PGII) rather than symptom-specific improvement in patient with overactive bladder (OAB). We hypothesize that PGII will predict continuation of PTNS long-term. METHODS:This prospective observational study included 90 patients with OAB that initiated PTNS. The PGII and overactive bladder short-form questionnaires (OABq-SF) were used to assess bladder symptom severity and improvement. Those that completed the 12-week induction phase were offered to continue PTNS monthly maintenance or pursue other options. The primary outcome was difference in PGII score between those pursuing maintenance therapy versus other options. Descriptive statistics and mixed effect modeling analysis were employed. RESULTS:Seventy patients (78%) completed 12 weeks of PTNS. The majority of completers pursued monthly maintenance (p<0.01) and had significantly lower median PGII scores compared with those who sought alternatives (p<0.01), while OABq-SF scores did not differ significantly (p=0.65). Patients that pursued monthly PTNS maintenance had lower body mass index than those who chose alternative therapies (p<0.01). Only 19% continued PTNS therapy for at least 1 year. CONCLUSIONS:More patients pursued PTNS monthly maintenance over any other therapy, and this was significantly associated with lower PGII scores. Global improvement, and not symptom-specific response, predicts long-term PTNS maintenance. No symptom-specific predictors were identified in those who pursued maintenance over other options. One-year continuation rates are low.

AIM/OBJECTIVE:Venous thromboembolism (VTE) rates in vaginal pelvic organ prolapse (POP) repair are low. Our aim is to evaluate specific risk factors for VTE in patients undergoing vaginal POP repair. METHODS: tests for categorical variables. Multivariate logistic regression was performed to identify factors independently associated with VTE. RESULTS:Of 44 207 women who underwent vaginal POP repair, there were 69 cases of VTE (0.16%). VTE rates for obliterative (0.15%) and functional (0.16%) vaginal POP repair, as well as for repairs with hysterectomy (0.17%) and without hysterectomy (0.12%) were not significantly different (p = .616 and .216, respectively). Multivariate analysis demonstrated predictors for postoperative VTE to be ASA physical status classification ≥ 3 (aOR, 1.99; p = .014), length of stay >75th percentile (aOR, 2.01; p = .007), operative time >3 h (aOR, 2.24; p = .007), and dyspnea (aOR, 3.26, p = .004). CONCLUSION/CONCLUSIONS:Despite the low incidence of VTE after vaginal POP repair, patients with ASA physical status classification ≥ 3, length of stay >75th percentile, operative time >3 h, and dyspnea were at higher risk for VTE. Vaginal POP repair may have independent VTE risk factors not captured in standard risk assessment tools.

OBJECTIVES/OBJECTIVE:The aims of this study were to describe our technique of gel-infused translabial ultrasound (GITLUS) to assess the female urethra for stricture and to highlight its utility when compared with other diagnostic techniques. METHODS:Consecutive patients presenting with prior diagnosis and/or suspicion for female urethral stricture underwent evaluation with uroflowmetry, postvoid residual, video urodynamics, and cystoscopy at the surgeon's discretion. All patients underwent GITLUS; 8-MHz curvilinear and 6-MHz linear high-frequency transducers were used to image the urethra from meatus to bladder neck while instilling 20 mL of lidocaine jelly to distend the urethra. Stricture location, length, caliber, and presence of periurethral fibrosis were assessed. Two healthy volunteers underwent GITLUS to serve as a comparison. RESULTS:Eight patients with suspected stricture underwent GITLUS. In all cases, GITLUS identified and characterized stricture and demonstrated periurethral fibrosis. Two healthy volunteers underwent GITLUS, which demonstrated a patent urethra and no evidence of fibrosis. Cystoscopy and video urodynamics on patients with stricture did not perform as well at identifying and fully assessing strictures. Six patients underwent definitive surgical repair, and GITLUS findings were confirmed. One patient had a postoperative GITLUS demonstrating resolution of the stricture and periurethral fibrosis. CONCLUSIONS:Gel-infused translabial ultrasound is a novel and accurate technique that in this small series appeared to identify and further characterize female urethral stricture in cases where it was utilized. Further research is needed to determine its role in preoperative planning and in providing a definitive diagnosis of stricture when other studies are equivocal.

AIMS/OBJECTIVE:To evaluate the impact of a protocol for standardized image capture during video urodynamics (VUD) on radiation exposure. Secondly, to categorize radiation exposure by condition warranting VUD and to identify clinical variables that correlate with increased radiation exposure. METHODS:One hundred fifty patients underwent VUD using our standardized protocol. All images were taken using low dose and pulsed settings. Four images are captured: one scout image, one filling image, one voiding image, and one post-void image. If the patient is unable to void with the catheter in place, the catheter is removed and a second image is taken during an attempt at unintubated flow. If vesicoureteral reflux (VUR) is identified, an alternate protocol is entered to document parameters. The mean radiation exposure measured in dose area product (DAP), fluoroscopy time, and number of images were noted and compared with previously published fluoroscopy data collected at our institution before protocol implementation. RESULTS:taking 5.2 images in 4.5 seconds. Protocol implementation leads to a 51.2% reduction in radiation exposure calculated by mean DAP (P < .0001) and a 96.5% reduction in fluoroscopy time (P < .0001). The presence of VUR, fluoroscopy time, and body mass index (BMI) > 25 were associated with higher radiation exposure (P < .0001). CONCLUSION/CONCLUSIONS:Implementation and adherence to a standardized protocol for fluoroscopy led to a reduction in radiation exposure fluoroscopy time. The presence of VUR, fluoroscopy time, and BMI > 25 were associated with higher radiation exposure.

Introduction: Percutaneous tibial nerve stimulation (PTNS) is an efficacious treatment option for overactive bladder syndrome (OAB). There is a paucity of data surrounding long-term efficacy of PTNS and limited studies are aimed at characterizing those patients who seek post-PTNS follow up maintenance. The aim of this study was to evaluate those who completed PTNS treatment and continued with posttreatment PTNS maintenance versus alternative therapeutic options.
Method(s): This is a prospective cohort study at a single academic institution. Ninety patients started PTNS according to our clinical protocol. The Patient Global Impression of Severity (PGIS) and Patient Global Impression of Improvement (PGII), and OAB Short Form (OABq-SF) questionnaires were used to assess OAB symptom severity and improvement, respectively. Following 12 sessions, patients were given the choice to continue maintenance PTNS or to pursue other options.
Result(s): Our completion rate was 70/90 (77.8%). Of all patients who continued some type of therapy for OAB, significantly more patients went on to monthly PTNS maintenance compared with all other options (54.3% vs 37.1%, P=0.02). There were no differing demographic features between those who pursued Post-PTNS maintenance and those who chose an alternative therapy. Overall OABq-SF scores improved significantly by the end of treatment but did not differ between those who chose PTNS maintenance and those who pursued another treatment. Medications did not improve the perception of improvement when added to PTNS (P=0.45). Individuals who chose PTNS maintenance showed significant improvement in urgency (3.4 (0.89) to 2.6 (0.89); P=0.049) and incontinence (3.2 (1.72) to 2.7 (1.37); P=0.038) over the initial 12 weeks, while those who chose otherwise did not. Individuals who went on to monthly maintenance showed lower PGII scores compared with those who sought alternatives (2.70 (1.6) vs 3.81 (1.07); P=0.01), despite no difference in starting severity of OAB symptoms (PGIS score 3.33 (0.72) vs 3.33 (0.70); P=1).
Conclusion(s): Patients were more likely to continue maintenance PTNS than any other form of treatment. Despite no predictive characteristics found, favorable improvement subscores in urgency and incontinence were associated with those pursuing maintenance therapy. Overall, those who perceived greater improvement were more likely to pursue long-term PTNS therapy as their OAB treatment of choice

Injury to the urinary tract is a known risk of surgical repair of anterior and apical pelvic organ prolapse. Cystoscopy at the time of surgical prolapse repair is a low-risk procedure that can identify genitourinary tract injury by inspecting the bladder and urethra as well as by visualizing the ureters and ureteral efflux. There are several techniques to assist with visualization of ureteral efflux. Identifying injury intraoperatively may allow for mitigation of the morbidity of the injury. Universal cystoscopy should be performed at the time of all pelvic reconstructive surgeries, with the exception of operations solely for posterior compartment defects.

PURPOSE: There is controversy regarding performing concomitant anti-incontinence procedures at the time of pelvic organ prolapse (POP) repair. Data supports improvement in stress urinary incontinence (SUI) with concomitant sling, but increased adverse events. We assessed trends in preoperative SUI evaluation, concomitant anti-incontinence procedure at POP surgery, and post-operative anti-incontinence procedures at our institution before and after the 2011 FDA Public Health Notification pertaining to vaginal mesh. MATERIALS AND METHODS: A retrospective review was performed on patients who underwent POP surgery from 2009-2015. Preoperative workup included assessment of subjective SUI and/or evaluation for leakage with reduction of POP on physical exam, urodynamics or pessary trial. Percentage of concomitant and post-operative anti-incontinence procedures were compared before and after the 2011 FDA notification. RESULTS: 775 women underwent POP repair. The percentage of anti-incontinence procedures at POP repair decreased from 54.8% to 38.0% after the FDA notification (p = 0.002) while the incidence of pre-operative objective SUI on exam, urodynamics and pessary trials remained constant. The incidence of post-operative anti-incontinence procedures within one year of the index surgery remained low. CONCLUSIONS: We found a decrease in incidence of concomitant anti-incontinence procedures at the time of POP repair following the 2011 FDA notification despite no significant decline in subjective SUI or demonstrable SUI on preoperative evaluation. Further analysis is warranted to assess the impact of the FDA notification on management patterns of women with POP and SUI.