Title
Comparison in young healthy volunteers of 3 different parameters of constant current stimulation used to determine sensory thresholds in the low urinary trackComparison in young healthy volunteers of 3 different parameters of constant current stimulation used to determine sensory thresholds in the low urinary track
Author
Faculty/Department
Faculty of Medicine and Health Sciences
Research group
Translational Neurosciences (TNW)
Publication type
article
Publication
Baltimore, Md,
Subject
Human medicine
Source (journal)
The journal of urology. - Baltimore, Md
Volume/pages
165(1996):4, p. 1415-1417
ISSN
0022-5347
ISI
A1996VH85700046
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
Purpose: We compared different parameters of constant current stimulation used for evaluation of sensation in the lower urinary tract. Materials and Methods: In 24 healthy male and 9 healthy female volunteers (mean age 24 years) sensory thresholds were determined at the same site on the bladder, urethra and skin with 3 different parameters of constant current stimulation (2.5, 20 and 95 Hz. at pulses 1, 1 and 0.5 msec., respectively) given at random. Results: Thresholds were highly reproducible at all sites and with the 3 currents. Thresholds obtained with 2.5 Hz. were significantly greater than those obtained with 20 Hz. at all sites or 95 Hz. at the bladder and male urethra. No significant difference was found between thresholds in the bladder or urethra with 20 and 95 Hz. In 2 volunteers no bladder sensation was elicited with 2.5 Hz. even at 33 mA. A reproducible elevated threshold was found with 20 and 95 Hz. No intravesical pressure increase occurred during stimulation. Conclusions: Absolute values of sensory thresholds vary in relation to the site of stimulus and stimulation parameters in healthy young subjects. Low frequency current (2.5 Hz.) is less easily perceived and, therefore, would seem less suitable for evaluation of electrical sensation in the lower urinary tract. Thresholds obtained with frequences of 20 and 95 Hz. were not statistically different.
E-info
https://repository.uantwerpen.be/docman/iruaauth/51226f/5c86291.pdf
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