[Disorders of bladder function in Parkinson syndrome]. / Blasenfunktionsstörungen bei Parkinson-Syndrom.

Urodynamic evaluation was performed in 18 patients with clinically manifest Parkinson syndrome and symptomatic bladder dysfunction. Detrusor hyperreflexia was diagnosed in 10 patients (56%), 9 of whom were incontinent. A bladder outlet obstruction was found in 5 of these 9 incontinent patients. In 8 out of the 18 Parkinson patients (44%), urodynamic assessment revealed a significant bladder outlet obstruction due to a non-contractile detrusor, with large volumes of residual urine. On the basis of our results, we conclude that bladder outlet obstruction, particularly in male patients, should be relieved early, even in patients with a small prostate adenoma or sphincter sclerosis, before secondary bladder dysfunction occurs.