Effectiveness of Electroconvulsive Therapy (ECT) in Parkinsonian Symptoms: A Case Series.

Depression is a common comorbidity in patients suffering from Parkinson's disease (PD). Available evidence suggests that electroconvulsive therapy (ECT) is an effective treatment for depression and also improves symptoms of PD. However, literature on usefulness of ECT in parkinsonian symptoms is limited. A review of records of all patients receiving ECT from 2010 to April 2017 in the authors' clinic yielded six cases (0.63% of all patients who received ECT at the authors' center over last 7 years) of depression with PD who were treated with ECT. All six patients had improvement in both depression and symptoms of PD following ECT treatment. The improvement achieved with ECT was sustained in four patients. Worsening of PD symptoms 3 to 4 months post-treatment was seen in two patients. ECT appears to be an effective treatment option for management of motoric symptoms in patients with PD, especially those with comorbid psychiatric disorders.