[Electroconvulsive therapy in Parkinson disease. Description of three cases]

Electroconvulsive therapy (ECT) has demonstrated to be useful in psychiatric patients with parkinsonism as well as patients with Parkinson's disease (PD) without associated psychopathology. We prospectively evaluated three patients with PD and major depression in whom ECT proved to be efficacious. These patients experimented a marked improvement measured by the Unified Parkinson's Rating Scale (UPDRS). In two cases the ECT allowed for a reduction in their drug treatment, and in one case complex fluctuations disappeared. In the two patients who continued with ECT fortnightly, the improvement observed inicially has remained. Since ECT has shown a good tolerance, we conclude that this therapy should be considered as an alternative approach for PD patients with a poor answer to conventional treatment.