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Limited Predictive Value of Urodynamic Studies for Postmicturition Dribbling in Surgery-Naive Men With Lower Urinary
Jung-Yang Yu1, Shang-Jen Chang2, Jeff Shih-Chieh Chueh1
1Department of Urology, National Taiwan University Hospital, Taipei, Taiwan.
Purpose:
Postmicturition dribbling (PMD) is a common but underrecognized lower urinary tract symptom (LUTS). This study evaluated the clinical and urodynamic characteristics of PMD in men with medication-refractory LUTS.
Methods:
From 2008 to 2010, 150 male patients underwent questionnaire assessment, urodynamic study (UDS), and transrectal ultrasound of the prostate (TRUSP). PMD was defined as a Likert score ≥3.
Results:
PMD was reported by 47% of patients and was significantly associated with higher International Prostate Symptom Score (IPSS) scores, particularly LUTS such as urgency, incomplete emptying, and weak stream. PMD also adversely affected quality of life, especially motivation, sexual function, and psychological well-being. Among the UDS and TRUSP parameters, only poor bladder compliance was significantly associated with PMD (4% vs. 17%, P=0.016), corresponding to a 4-fold higher risk.
Conclusion:
PMD was prevalent and clinically meaningful in men with LUTS and was strongly associated with core LUTS and reduced bladder compliance. Because PMD is not included in the IPSS, it may be underrecognized in routine clinical evaluation, underscoring the need for broader symptom assessment.
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