Voiding efficiency: a predictor of failed trial off catheter after transurethral resection of prostate

Following transurethral resection of the prostate (TURP), there is no clear recommendation for the catheter duration, and objective criteria are needed to determine appropriate time for trial off catheter. Current study is aimed to identify the high-risk patients for failed trial off catheter and the association with preoperative voiding efficiency with postoperative failed trial without catheter.

This is cross-sectional single institutional study. All eligible patients who underwent TURP were followed preoperatively for symptoms and workup, including voiding efficiency based on ultrasound findings, intraoperatively for resection parameters, and postoperatively for a trial off a catheter. All the findings were documented, and the data were analyzed on SPSS(TM) 22. Demographic variables were calculated in the form of frequency and percentages. The association of voiding efficiency with failed trials off catheters was checked through Chi-square and binary logistic regression analysis.

132 patients were included in the study. The mean voiding efficiency was 57.5%. Based on voiding efficiency cut off, of 50%, patients were divided into two groups. The association between voiding efficiency and failed trials off catheters was not found to be statistically significant, with a p value of 0.79. Only prevoid volume, postvoid volume, duration of symptoms, and upper tract damage were found to be statistically significant predictors of failed trial off catheter, with a p value of < 0.05.