Abstract
Purpose We investigated the accuracy of analysis of detrusor contraction during micturition with a simple to use pressure-flow nomogram (linear passive urethral resistance relation). The computer derived maximum detrusor contraction parameter was used as a reference. The correlation with bladder emptying capability was used as a control. Materials and Methods Advanced pressure-flow analysis was performed in 224 elderly men with lower urinary tract symptoms. Results All patients with a contraction classified as normal on the nomogram had good maximum detrusor contractions. However, 50 percent of the patients with a weak classification on the nomogram showed good maximum detrusor contractions. Conclusions The nomogram is useful in the selection of patients with a good detrusor contraction.
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