Biomaterial Database

Combined electroconvulsive therapy and clozapine in treatment-resistant schizophrenia. 1999

H C Kales, and J R Dequardo, and R Tandon

Division of Geriatric Psychiatry, University of Michigan, Ann Arbor, USA. kales@umich.edu

1. To assess the efficacy and safety of combining electroconvulsive therapy (ECT) and clozapine in patients with treatment-resistant schizophrenia, the authors reviewed use of this combination in four treatment-resistant schizophrenic inpatients and one inpatient with schizophrenia who was intolerant of clozapine doses needed to control her psychosis. 2. The combination of clozapine and bilateral ECT was modestly effective in two treatment-resistant patients and markedly effective in three patients. There was significant overall improvement in patients' Clinical Global Impression (CGI) and Global Assessment of Functioning (GAF) scores (p < 0.005 and p < 0.0004, respectively), however in patients where marked symptomatic improvement was noted, effects were not sustained. 3. One of the patients that showed dramatic yet transient improvement followed by relapses received maintenance ECT but relapsed despite this. 4. The authors saw no adverse effects in connection with the combination of ECT and clozapine. 5. Supplementing clozapine with a course of bilateral ECT appears to be safe and is effective in some patients with refractory schizophrenia, however its beneficial effects may be short-lived. The long-term impact of ECT on the course of schizophrenia in patients incompletely responsive to clozapine is not fully elucidated.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D012008	Recurrence	The return of a sign, symptom, or disease after a remission.	Recrudescence,Relapse,Recrudescences,Recurrences,Relapses
D003024	Clozapine	A tricylic dibenzodiazepine, classified as an atypical antipsychotic agent. It binds several types of central nervous system receptors, and displays a unique pharmacological profile. Clozapine is a serotonin antagonist, with strong binding to 5-HT 2A/2C receptor subtype. It also displays strong affinity to several dopaminergic receptors, but shows only weak antagonism at the dopamine D2 receptor, a receptor commonly thought to modulate neuroleptic activity. Agranulocytosis is a major adverse effect associated with administration of this agent.	Clozaril,Leponex
D003131	Combined Modality Therapy	The treatment of a disease or condition by several different means simultaneously or sequentially. Chemoimmunotherapy, RADIOIMMUNOTHERAPY, chemoradiotherapy, cryochemotherapy, and SALVAGE THERAPY are seen most frequently, but their combinations with each other and surgery are also used.	Multimodal Treatment,Therapy, Combined Modality,Combined Modality Therapies,Modality Therapies, Combined,Modality Therapy, Combined,Multimodal Treatments,Therapies, Combined Modality,Treatment, Multimodal,Treatments, Multimodal
D004565	Electroconvulsive Therapy	Electrically induced CONVULSIONS primarily used in the treatment of severe AFFECTIVE DISORDERS and SCHIZOPHRENIA.	Convulsive Therapy, Electric,ECT (Psychotherapy),Electroshock Therapy,Shock Therapy, Electric,Convulsive Therapies, Electric,Electric Convulsive Therapies,Electric Convulsive Therapy,Electric Shock Therapies,Electric Shock Therapy,Electroconvulsive Therapies,Electroshock Therapies,Shock Therapies, Electric,Therapies, Electric Convulsive,Therapies, Electric Shock,Therapies, Electroconvulsive,Therapies, Electroshock,Therapy, Electric Convulsive,Therapy, Electric Shock,Therapy, Electroconvulsive,Therapy, Electroshock
D005260	Female		Females
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328	Adult	A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available.	Adults
D000368	Aged	A person 65 years of age or older. For a person older than 79 years, AGED, 80 AND OVER is available.	Elderly
D012559	Schizophrenia	A severe emotional disorder of psychotic depth characteristically marked by a retreat from reality with delusion formation, HALLUCINATIONS, emotional disharmony, and regressive behavior.	Dementia Praecox,Schizophrenic Disorders,Disorder, Schizophrenic,Disorders, Schizophrenic,Schizophrenias,Schizophrenic Disorder