RESUMEN
The role of urethral pressure variations during filling cystometry is seldom assessed as a potential cause of voiding dysfunction and/or storage disorders. In this article, we review current research in the field of urethral pressure variations and discuss the way of determining urethral pressure variations, its value for the clinical practice and hypothesize the origin of urethral pressure variations. The observation and recognition of urethral pressure variations (urethral instability) could be valuable in the diagnosis and evaluation of therapy in functional lower urinary tract disorders.
Asunto(s)
Uretra/fisiopatología , Humanos , Presión , Terminología como Asunto , Enfermedades Uretrales/complicaciones , Enfermedades Uretrales/fisiopatología , UrodinámicaRESUMEN
The authors report a method of complex urodynamic investigation. The intravesical pressure, the intrarectal pressure, the electronically computed detrusor pressure, the urinary flow and the electromyography of the anal and urethral striated sphincters are recorded simultaneously with the fluoroscopic image on 16 mm film using the kinescopic procedure. The intravesical pressure is measured per urethram. The routine examination method is described. The authors consider that the use of 16 mm film has advantages in comparison to videotape recordings. The installation was made out of existing materials except for the electronic mixing device, which was created in the research laboratory. Radiation dosis measurements show that even by extensive examination the received radiation dosis does not exceed the exposure of a standard voiding cystourethrogram.