Cut-off Value for Bladder Outlet Obstruction in Pressure-Flow Study in Female: A Prospective Study.
- Author:
Hongsik KIM
1
;
Uk LEE
;
Minho LEE
;
Myung Soo CHOO
Author Information
1. Department of Urology, University of Ulsan College of Medicine, Seoul, Korea.
- Publication Type:Original Article
- Keywords:
Urodynamics;
Female;
Bladder outlet obstruction
- MeSH:
Diagnosis;
Female*;
Humans;
Prospective Studies*;
ROC Curve;
Urinary Bladder Neck Obstruction*;
Urinary Bladder*;
Urinary Incontinence;
Urodynamics
- From:Korean Journal of Urology
2001;42(11):1146-1151
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
PURPOSE: We attempted to find out the useful urodynamic parameters for diagnosis of bladder outlet obstruction (BOO) in women, prospectively. MATERIALS AND METHODS: 219 patients were available for analysis, of whom 34 were obstructed by clinical definition, 137 with stress urinary incontinence (SUI) and 34 served as a control. To predict obstruction, comparisons were made; receiver operator characteristic (ROC) curve analysis was used to determine the optimum cut-off values for peak flow rate (Qmax), detrusor pressure at maximum flow (PdetQmax) and maximal urethral closing pressure (MUCP). RESULTS: On the basis of ROC curves between control and BOO groups, using single cut-off value at pressure-flow study, sensitivities and specificities of BOO were 97.1% and 77.9% (Qmax<12ml/s), 85.3% and 86.8% (PdetQmax>30cmH2O), 79.4% and 88.2% (MUCP>80cmH2O). By combined cut-off values, sensitivities and specificities of BOO were 85.3% and 92.6% (Qmax<12ml/s and PdetQmax>30cmH2O), and 73.5% and 94.1% (Qmax<12ml/s, PdetQmax>30cmH2O, and MUCP>80cmH2O). CONCLUSIONS: Our results show that BOO might be diagnosed by the criteria of Qmax<12ml/s, PdetQmax>30cmH2O, and MUCP>80cmH2O.
