Experience using multielectrode cardiac catheters for detection of electrophysiologic activity of the human urinary bladder.

AIM: To determine the feasibility of commercially available multielectrode cardiac electrophysiology catheters to detect electrical activity in the human bladder. METHODS: Ten subjects requiring cystoscopy for the evaluation of lower urinary tract pathology were eligible for participation in our study. After routine rigid cystoscopy with a 70° cystoscope, various multielectrode cardiac electrophysiology catheters were introduced into the bladder. One of three catheters with different electrode configurations was used per subject. Electroanatomical images of the bladder were created and spontaneous electrical activity was recorded. Subjective response to electrical stimuli delivered across the electrodes (20 mA at 5 ms pulse width, rate 100 ms) was also recorded. The responses were qualitatively compared with that from a prior study. RESULTS: Electrical activity recorded at the dome of the bladder was less than 0.5 mV and low frequency. Myopotentials resembling smooth muscle were detected at electrodes near or within the trigone. A sensory response was reported with the use of pacing stimuli, with the sensation in the trigone being reported more often than the dome of the bladder. Stimulation in the trigone triggered sensory urgency and voiding in a patient with a history of overactive bladder. CONCLUSIONS: The use of multielectrode catheters to measure human bladder electrophysiologic activity is feasible. Issues with noise reduction still exist, though to a lesser extent with the multielectrode basket design than simple quadripolar one. Sensory responses to pacing stimuli may be useful for diagnostic and therapeutic purposes in the future.

Racial Differences in Pelvic Organ Prolapse Symptoms Among Women Undergoing Pelvic Reconstructive Surgery for Prolapse.

OBJECTIVE: The aim of this study was to determine if there is a difference in Pelvic Floor Disability Index Questionnaire (PFDI-20) scores between black and white women seeking surgical management for pelvic organ prolapse (POP). METHODS: A retrospective cohort study of 232 women who underwent pelvic reconstructive surgery with apical suspension for POP was performed. Demographic and clinical data were collected. All women completed the PFDI-20 and had a Pelvic Organ Prolapse Quantification examination at the initial consultation. Appropriate statistical tests were used to compare black and white women. Multivariable regression models adjusting for demographic and clinical variables were developed to determine the independent relationship between race and POP symptoms. RESULTS: In our cohort, 174 (75%) were white and 58 (25%) were black. Compared with white women, black women had higher parity, body mass index, Charlson Comorbidity Index score, and anterior POP stage. White women had higher total PFDI-20 scores corresponding to higher scores on all symptom subscales. After controlling for potential confounders, white race and prior anti-incontinence surgery remained associated with higher total PFDI scores. Higher Urogenital Distress Inventory 6 scores were significantly associated with white race, prior anti-incontinence procedures, and increasing body mass index, whereas higher CRADI-8 scores were associated with prior anti-incontinence surgery and higher POP stages. CONCLUSIONS: White women appeared to have more overall symptom bother from prolapse, as well as urinary symptoms, as compared with black women, when assessed by validated questionnaire tools in a cohort of patients who underwent prolapse surgery. Further research is required to determine if racial differences in symptoms translate to differences in outcomes.

Retrospective Cohort Study on the Perioperative Risk Factors for Transient Voiding Dysfunction After Apical Prolapse Repair.

OBJECTIVES: The primary aim was to compare the incidence of transient voiding dysfunction (TVD) between vaginal uterosacral ligament suspension, sacrospinous ligament fixation, and robotic sacrocolpopexy. Secondarily, we identified risk factors for TVD and associated postoperative complications. METHODS: This was a retrospective cohort study of women who underwent apical repair at 1 institution. Data were collected from electronic medical records and were presented as means (SD) or numbers (percent) as appropriate. Univariate and multivariate analyses were performed to identify risk factors for TVD and its associated postoperative complications. RESULTS: Three hundred sixty women were included in analysis. Two hundred nineteen (60.8%) passed their voiding trial and 141 (39.2%) experienced TVD. The TVD group demonstrated a higher age, age-adjusted Charlson Comorbidity Index score, and preoperative postvoid residual (all P < 0.05). Univariate analysis demonstrated higher rates of TVD in the vaginal uterosacral ligament suspension and sacrospinous ligament fixation groups compared with the robotic sacrocolpopexy group (P = 0.012). Transient voiding dysfunction occurred more frequently with a concomitant anti-incontinence procedure, anterior repair, and/or posterior repair (all P < 0.05). In multivariate analysis, only an anti-incontinence procedure and concomitant anterior repair were independently associated with a risk of TVD (odds ratio [OR], 2.23; 95% confidence interval [CI], 1.37-3.62, and OR, 2.20; CI, 1.14-4.27, respectively). Transient voiding dysfunction was associated with a culture-proven urinary tract infection within 6 weeks (OR, 3.2; CI, 1.3-8.55). CONCLUSIONS: There was no difference in TVD between types of apical repair. Concomitant anti-incontinence procedure and anterior repair were associated with TVD. Women with TVD have an increased risk of postoperative urinary tract infections.

Delayed Presentation of Cecal Perforation With Tension-Free Vaginal Tape.

BACKGROUND: Tension-free vaginal tape (TVT) is a popular operative treatment for stress urinary incontinence (SUI). It has a low risk of adverse events, and injuries, particularly to the bowel, are rare. Case reports that have previously discussed these injuries and subsequent removal of TVT have not provided additional insight into management of SUI after these injuries occur. CASE: A postmenopausal woman with persistent SUI presented more than 1 year after TVT placement with bowel perforation incidentally discovered on routine screening colonoscopy. She underwent removal of the TVT and subsequent placement of a fascial sling with postoperative resolution of SUI. CONCLUSION: This case provides additional evidence for bowel injury as a postoperative TVT complication and describes an approach to complicated TVT and persistent SUI.