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Does Urethral Instrumentation Affect Uroflowmetry Measurements?
Author(s) -
TESSIER JOCELYNE,
SCHICK E.
Publication year - 1990
Publication title -
british journal of urology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.773
H-Index - 148
eISSN - 1464-410X
pISSN - 0007-1331
DOI - 10.1111/j.1464-410x.1990.tb14722.x
Subject(s) - medicine , urinary flow , instrumentation (computer programming) , urination , urology , surgery , urinary system , prostate , cancer , computer science , operating system
Summary— Uroflowmetry was performed before and after urethral catheterisation in 129 patients. Uroflowmetry measurements were significantly modified by urethral instrumentation. In males, both maximum and mean flow rates decreased following urethral catheterisation, while in females only the maximum flow rate decreased, the mean flow rate remaining unchanged. Voided volume increased (and consequently resdidual urine decreased) in females after catheterisation, but did not change significantly in males. False positive results were encountered in 32% of patients and false negative results in 11% when flowmetry was done immediately after catheterisation. Uroflowmetry after urethral instrumentation is not recommended.