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Urol Int. 2007;78(3):219-25.

Comparisons of urodynamic findings and voiding habits in patients with concomitant benign prostatic hyperplasia and detrusor overactivity presenting with or without the symptom of urgency.

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1
Department of Urology, College of Medicine, National Cheng Kung University, Tainan, Taiwan, ROC. yctong@mail.ncku.edu.tw

Abstract

AIMS:

The urodynamic findings and voiding habits in patients with concomitant clinical benign prostatic hyperplasia (BPH) and detrusor overactivity (DO) presenting with or without the symptom of urgency were compared.

MATERIALS AND METHODS:

84 BPH patients with an urodynamic diagnosis of DO by conventional cystometry were included in the study. The patients were grouped according to the presence or absence of the symptom of urgency. The urodynamic findings, urinary diary and clinical information were analyzed.

RESULTS:

Among the 84 BPH-DO patients, 52 reported the symptom of urgency while 32 did not. There were no significant differences in mean age, International Prostate Symptom Score and flow rate between the two groups. Patients without urgency had a higher incidence of terminal DO and abnormal bladder sensation. The occurrence of unfelt phasic DO was also significantly higher in this group. Sphincter electromyography showed conscious and subconscious sphincter contractions associated with DO. The urinary diary showed lower 24-hour urinary output, smaller bladder functional capacity and average voided volume in the BPH-DO patients without urgency.

CONCLUSIONS:

BPH patients with DO may neglect the symptom of urgency due to abnormal bladder sensation, or negate the symptom by subconscious sphincter contraction to abort the overactivity. Some may avoid the symptom by drinking less fluid and emptying the bladder at a smaller volume.

PMID:
17406130
DOI:
10.1159/000099341
[Indexed for MEDLINE]
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