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Continuous recording of urethral activity in healthy female volunteers
Author(s) -
Søresen S.,
Kirkeby H. J.,
StødkildeJørgensen H.,
Djurhuus J. C.
Publication year - 1986
Publication title -
neurourology and urodynamics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.918
H-Index - 90
eISSN - 1520-6777
pISSN - 0733-2467
DOI - 10.1002/nau.1930050103
Subject(s) - medicine , catheter , urethra , urinary system , urology , anesthesia , surgery
The pressure variations at the maximal urethral closure pressure (MUCP) were continuously recorded in healthy female volunteers by means of a two‐point microtip transducer catheter for one hour. Before the investigation a normal voiding was assured objectively and bladder instability was excluded. All women showed pressure variations both at the MUCP and more distally. The pressure variations, from 3 to 66 cm H 2 O, showed rhythmicity and three frequency ranges could be identified. Slow pressure waves with a frequency of one in eight to 19 minutes were observed. Relatively fast‐pressure waves were observed (one every one to four minutes) and relatively fast‐frequency pressure waves were observed (rate: one to eight per minute). The pressure variations of the urethra seem to be an aspect of normal urethral physiology possibly contributing to continence and urinary tract infection prevention.