Author/Editor		Deindl, FM; Vodušek, DB; Bischoff, CH; Hofmann, R; Hartung, R
Title		Dysfunctional voiding in women: which muscles are responsible?
Type		članek
Source		Brit J Urology
Vol. and No.		Letnik 82
Publication year		1998
Volume		str. 814-9
Language		eng
Abstract		Objective: To analyse the striated external urethral sphincer (EUS) and pelvic floof muscles using two different electromyography (EMG) techniques in women with dysfunctional voiding and/or urinary retention. Pationts and methods: Filfteen women (mean age 38.2 years, range 18-61) with dysfunctional voiding and/or unexplained voiding dysfunction associated with urinary retention were examined neurologically and urologically; urodynamics and kinesiological EMG of the bilateral pubococcygeal and external urethral striated sphincter muscles were obtained. In an additional neurophysiological session, concentricneedle EMG of the external urethral sphincter was performed. Results: Kinesiological EMG recordings revealed inappropriate pelvic floor muscle activation during voiding in 11 and EUS activation in four women. Concentric needle EMG of the EUS revealed complex repetitive discharges in the four women with inappropriate urethral sphincter activation recorded by kinesiological EMG during voiding. Biofeedback training led to improvement in women with inappropriate pubococcygeal activation but not in those with urethral sphincter complex repetitive discharges. Conclusion: Urodynamic examinations in combination with kinesiological EMG examination of the pubococcygeal and external urethral sphincter muscles revealed two groups of women with dynsfunctional voiding. Further diagnostic evaluationof such patients with concentric-needle EMG is mandatory. The differentiation of the two groups is therapeutically relevant.
Descriptors		URINARY RETENTION PELVIC FLOOR URETHRA URINATION DISORDERS URETERAL OBSTRUCTION MUSCLE CONTRACTION ELECTROMYOGRAPHY