The Usefulness of Residual Urine Fraction and Maximal Flow Rate for Predicting Outcome after Transurethral Resection of Prostate in Benign Prostatic Hyperplasia.
- Author:
Ja Hyeon KU
1
;
Yun Seob SONG
;
Min Eui KIM
;
Nam Kyu LEE
;
Young Ho PARK
Author Information
1. Department of Urology, School of Medicine, Soonchunhyang University, Seoul, Korea.
- Publication Type:Original Article
- Keywords:
Residual urine fraction;
Benign prostatic hyperplasia
- MeSH:
Humans;
Prostatic Hyperplasia*;
Transurethral Resection of Prostate*;
Treatment Outcome;
Ultrasonography;
Urinary Bladder
- From:Korean Journal of Urology
1999;40(12):1647-1650
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
PURPOSE: To investigate whether residual urine fraction can predict the outcome after transurethral resection of prostate in benign prostatic hyperplasia. MATERIALS AND METHODS: From February 1995 to June 1999, benign prostatic hyperplasia aged 54 to 82years(mean: 65.4+/-6.7years) were examined with maximal flow rate and postvoid residual using uroflometry and ultrasonography, respectively, before and after transurethral resection of prostate. Residual urine fraction was defined as postvoid residual/pre-micturition volumex100. RESULTS: There was a significant correlation between pre-micturition volume and postvoid residual and the variation of residual urine fraction was significantly narrower than that of postvoid residual. Residual urine fraction was inversely correlated with postoperative maximal flow rate in patients whose preoperative maximal flow rate were above 12 ml/sec. CONCLUSIONS: Residual urine fraction is more reliable than postvoid residual. So, we suggest that residual urine fraction is more accurate index than postvoid residual in accessing of bladder emptying and may predict the treatment outcome in selected patients, if it is combined with preoperative maximal flow rate.
