The Correlation of Urodynamic Study with Prostate Volume Parameters in the Evaluation of the BPH.
- Author:
Young Su KO
1
;
Jeong Gu LEE
Author Information
1. Department of Urology, College of Medicine, Korea University, Seoul, Korea.
- Publication Type:Original Article
- Keywords:
Urodynamic study;
Benign prostatic hyperplasia;
Prostate volume para
- MeSH:
Humans;
Male;
Middle Aged;
Prospective Studies;
Prostate*;
Prostatic Hyperplasia;
Ultrasonics;
Urinary Bladder Neck Obstruction;
Urodynamics*
- From:Korean Journal of Urology
2001;42(8):809-814
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
PURPOSE: It is difficult to assess the severity of benign prostatic hyperplasia (BPH) both objectively and quantitatively. This study aims to examine the predictive value of ultrasonic measurements obtained by transrectal ultra-sonography (TRUS) for infravesical obstruction as evaluated by pressure flow study (PFS). MATERIALS AND METHODS: Among the men over 50 years old with symptoms of BPH, 69 men in which bladder outlet obstruction were confirmed by PFS were prospectively analysed. All men were requested to undergo measurement of international prostate symptom score (IPSS), TRUS and PFS. IPSS and urodynamic parameters were compared to prostate volume parameters using simple and multiple regression analysis. RESULTS: Simple regression analysis demonstrated that prostate total volume (PV) and presumed circular area ratio (PCAR) correlated significantly with all urodynamic parameters. Maximal uroflow (Qmax) was significantly correlated with all prostate volume parameters. Multiple regression analysis showed that PCAR was the only significant independent determinant of IPSS and urodynamic parameters. A receiver operator characteristics curve analysis showed that 0.8 was the most suitable cutoff value of PCAR for the prediction of infravesical obsruction with a diagnostic accuracy of 75.3%. CONCLUSIONS: PCAR was an only significant independent determinant of the severity of BPH using a cutoff value 0.8. Conclusively, PCAR was thought to be a valuable volume parameters in predicting bladder outlet obstruction caused by BPH without measuring pressure-flow study.
