24 hour-monitoring of patients with bladder voiding disturbances.

A system was developed and built for recording and processing urodynamic measurements during a 24 h period. The essential requirement was to obtain these signals without psychological stress. The system was small enough to allow the patient to move freely. Semiconductor pressure transducers were employed for measuring total bladder and rectal pressures and detrusor pressure was obtained by subtraction. Results gained with this method revealed some differences to those obtained with conventional methods.