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Objectives: This study aimed to identify the characteristics associated with overactive bladder (OAB) symptoms perioperatively in patients undergoing pelvic organ prolapse (POP) surgery with and without slings and to determine the rate of OAB symptom resolution postoperatively., Methods: This retrospective, single-institution study involved women undergoing prolapse surgery with and without concomitant midurethral sling from 2011 to 2016. A validated questionnaire was used to determine OAB symptoms preoperatively and postoperatively. The primary outcome was rate of resolution in OAB symptoms after POP surgery with and without midurethral sling. Baseline characteristics and surgery type were presented, and univariate and multivariate logistic regression models were applied to evaluate characteristics associated with OAB symptoms at the first postoperative visit., Results: The analysis included 203 patients. Among those with baseline OAB symptoms, 103 (61%) had symptom resolution, whereas 66 (39.1%) reported persistent symptoms. Among 34 patients without baseline OAB symptoms, 6% developed de novo symptoms. Older age was found to be a significant risk factor for persistence of symptoms postoperatively both on univariate (odds ratio, 0.97; 95% confidence interval, 0.94-1; P = 0.038) and multivariate logistic regression (odds ratio, 0.96, 95% confidence interval, 0.92-1; P = 0.049). The rate of medication discontinuation postoperatively was 25%., Conclusions: Approximately 61% of patients undergoing POP surgery had resolution of OAB symptoms postoperatively whether or not an incontinence procedure was performed. Older age was significantly related to persistent OAB symptoms in both univariate (P = 0.038) and multivariate (P = 0.049) models. The rate of de novo OAB symptoms was 6%., Competing Interests: The authors have declared they have no conflicts of interest., (Copyright © 2019 Wolters Kluwer Health, Inc. All rights reserved.)

Objectives: The goal of this study was to demonstrate feasibility of measuring extracellular pH in cartilage and meniscus using acidoCEST technique with a 3-dimensional ultrashort echo time readout (acidoCEST-UTE) magnetic resonance imaging (MRI)., Materials and Methods: Magnetization transfer ratio asymmetry, radiofrequency (RF) power mismatch, and relative saturation transfer were evaluated in liquid phantoms for iopromide, iopamidol, and iohexol over a pH range of 6.2 to 7.8, at various agent concentrations, temperatures, and buffer concentrations. Tissue phantoms containing cartilage and meniscus were evaluated with the same considerations for iopamidol and iohexol. Phantoms were imaged with the acidoCEST-UTE MRI sequence at 3 T. Correlation coefficients and coefficients of variations were calculated. Paired Wilcoxon rank-sum tests were used to evaluate for statistically significant differences., Results: The RF power mismatch and relative saturation transfer analyses of liquid phantoms showed iopamidol and iohexol to be the most promising agents for this study. Both these agents appeared to be concentration independent and feasible for use with or without buffer and at physiologic temperature over a pH range of 6.2 to 7.8. Ultimately, RF power mismatch fitting of iohexol showed the strongest correlation coefficients between cartilage, meniscus, and fluid. In addition, ratiometric values for iohexol are similar among liquid as well as different tissue types., Conclusions: Measuring extracellular pH in cartilage and meniscus using acidoCEST-UTE MRI is feasible.