Electroconvulsive Therapy in Forensic Psychiatry: A Systematic Review.

Patients with schizophrenia are the largest population in forensic hospitals, and treatment-resistant psychosis is associated with length of stay. For patients with severe and treatment-resistant psychotic disorders, electroconvulsive therapy (ECT) is a potentially effective treatment. Data regarding the use of ECT in forensic psychiatry are scarce. This systematic review aims to provide an overview of the use of ECT in forensic psychiatry. Three databases (PubMed, Web of Science, and PsycINFO) were searched for publications since 1980. Peer-reviewed articles describing patients who underwent ECT treatment in the context of forensic psychiatry were included when a treatment outcome was reported. We identified 5 case reports and 1 case series comprising 13 patients treated with ECT in forensic settings. The quality of evidence was poor accompanied by a considerable risk of bias. Patients were diagnosed with schizophrenia spectrum disorders (n = 10) or depression with psychotic features (n = 3). Eleven patients (84.6%) were described as responders in terms of symptom improvement associated with a reduction of aggressive behavior and improved functioning. At least 3 patients were able to return to community settings. Despite the very limited evidence base, our review suggests that patients in forensic hospitals may benefit from ECT, but more systematic and higher-quality evidence is urgently needed. In addition to prospective, controlled observational studies, a qualitative view focusing on patients' perspectives in this specific setting is of particular importance.