The correlation between retrograde leak point pressure and 24-hour pad weight

AimTo assess the correlation between retrograde leak point pressure (RLPP) and 24-hr pad weight (24PW) in men with post-prostatectomy incontinence. MethodsWe performed RLPP and 24PW measurements on 61 patients with a history of post-prostatectomy stress urinary incontinence (SUI). We examined the relationship of RLPP and 24PW. We also reviewed the urodynamic and clinical data of these patients to explain our findings. ResultsThe mean age was 70 years (SD7.4, range: 51-87). The mean RLPP was 36.8cmH(2)O (SD +/- 15.3, range: 9-76), the mean 24PW was 499g (+/- 677g, range: 16.5-3,177g). There was a good and significant negative correlation between RLPP and 24PW (r=0.56, P<0.01). RLPP was able to differentiate between cases of mild/moderate (<400g) and severe (400g) incontinence. Patients with RLPP <30cmH(2)O had significantly higher 24PW (mean 825g, median 768g) when compared with patients with RLPP >30cmH(2)O (mean 257.8g, median 100g, P<0.01). ConclusionsRLPP could be used as an objective and potentially more reliable substitute to pad weight to objectify and stratify SUI in post-prostatectomy patients. Neurourol. Urodynam. 36:1119-1123, 2017. (c) 2016 Wiley Periodicals, Inc.