THE CORRELATION OF MULTICHANNEL URODYNAMIC PRESSURE-FLOW STUDIES AND AMERICAN-UROLOGICAL-ASSOCIATION SYMPTOM INDEX IN THE EVALUATION OF BENIGN PROSTATIC HYPERPLASIA

Purpose: We correlated multichannel pressure-flow urodynamics and the American Urological Association (AUA) symptom index in the evaluation of benign prostatic hyperplasia. Materials and Methods: We evaluated 121 consecutive, symptomatic patients older than 55 years with the AUA symptom score and multichannel pressure-flow urodynamic studies, Testing was performed during a single session and the data obtained from 103 patients were plotted on the Schafer nomogram for assessment of outflow obstruction. Linear regression statistical analysis was used to determine correlations, Results: There was no significant correlation between uroflowmetry and Schafer curves (r = 0.173 to 0.326), uroflowmetry and AUA symptom scores (r = 0.134 to 0.153) and, most importantly, AUA symptom scores and Schafer curves (r = 0.025 to 0.137). Conclusions: We conclude that these modalities measure independent variables, and should not be linked in the evaluation and treatment decision of the patient with prostatism.