尿流量測定の臨床的意義について

Abstract

One of the most important objective tests for disturbances of mictiurition is uroflowmetry (UFM), in which an apparatus (uroflowmeter) is an important factor for the determination of urinary flow curves. Six apparatus were studied about their accuracies, costs and difficulties of the operation. The mictiometer of DISA had a satisfactory accuracy and mass flowmeters (AMS & Life-Tech) could be used clinically. Flow rate nomograms for maximum flow rate and average flow rate were made as an aid in the interpretation of urinary flow data. It was shown that these nomograms were practically very useful. Urinary flow curves were classified in 4 groups. This classification was of benefit to make a diagnosis of urinary flow abnormalities. It was also demonstrated that obstructions at the bladder neck consist of two groups based on the response of urinary flow rate to phentolamine. Therefore, it would be concluded that UFM gives many informations for urodynamics in addition to a screening test of micturition.