Abstract：
OBJECTIVES:The aim of this study was to ascertain whether frequent voiding and urge incontinence are associated with supersensitivity to electrical stimulation in the posterior urethra. METHODS:Current perception thresholds (CPT) were tested at four stimulus frequencies (1, 3, 20, and 100 Hz; duration 0.5 ms) using a square-wave constant current electrical stimulator connected to ring electrodes on a urethral catheter. The strength of the current at the first tingling sensation was regarded as the CPT. CPT analysis and cystometry were performed on 61 women (ages 28-89 years). RESULTS:CPTs were significantly higher at lower than at elevated stimulus frequencies, and they were also generally higher in old than in younger patients. Seven women repeated the CPT test after two months, and the thresholds were unchanged. There were no significant differences in sensitivity between patient groups with stress incontinence, urge, or mixed symptoms. Moreover, CPT was not significantly related to bladder volume at first sensation of filling. CONCLUSION:Measuring CPT is an easy and reproducible method of testing urethral sensibility, but our results do not support the suspicion that urethral hypersensitivity is involved in increased voiding frequency and urge incontinence.
journal_name
Eur Uroljournal_title
European urologyauthors
Kinn AC,Nilsson BYdoi
10.1016/j.eururo.2005.02.009keywords:
subject
Has Abstractpub_date
2005-07-01 00:00:00pages
116-20issue
1eissn
0302-2838issn
1873-7560pii
S0302-2838(05)00080-1journal_volume
48pub_type
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