PMC4719897_01
Urodynamic study before tetanus therapy. During the bladder filling phase, the volume at first sensation and the maximum capacity were 126 mL and 225 mL, respectively. Detrusor overactivity was not observed during this phase. Although the patient was permitted to void, he was unable to do so. The detrusor contractility was not confirmed and the urethral sphincter was not relaxed on electromyography during the pressure-flow study (arrowheads). Pves, vesical pressure (bladder); Pabd, pressure of the abdomen (rectal); Pdet, pressure of the detrusor = Pves - Pabd; EMG, electromyography of the urethral sphincter; Flow, flow of urine.
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fig1
As he could not void without catheter during steroid therapy, he was referred back to our department for a urodynamic study (UDS) (Fig. 1).
Urodynamic study after tetanus therapy. During the bladder filling phase, the volume at first sensation and maximum capacity were 172 mL and 393 mL, respectively. Detrusor overactivity was not observed during this phase. Although the patient was permitted to void, he was unable to void. The detrusor contractility was not confirmed, but the urethral sphincter was relaxed on electromyography during the pressure-flow study (arrowheads). Pves, vesical pressure (bladder); Pabd, pressure of the abdomen (rectal); Pdet, pressure of the detrusor = Pves - Pabd; EMG, electromyography of the urethral sphincter; Flow, flow of urine.
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fig2
UDS and free uroflowmetry were performed (Fig. 2). UDS showed no contraction of the detrusor, but the relaxation of urethral sphincter on the electromyography.