A randomized comparison of ketamine versus methohexital anesthesia in electroconvulsive therapy. 2014

Keith G Rasmussen, and Simon Kung, and Maria I Lapid, and Tyler S Oesterle, and Jennifer R Geske, and Gregory A Nuttall, and William C Oliver, and John P Abenstein
Mayo Clinic Departments of Psychiatry and Psychology, Rochester, MN 55905, USA. Electronic address: rasmussen.keith@mayo.edu.

To assess the clinical utility of ketamine as an anesthetic agent for electroconvulsive therapy (ECT), based upon recent findings that ketamine may have antidepressant properties. Depressed ECT patients were randomly assigned to receive anesthesia with either ketamine or methohexital. Outcome measures included assessments of depressive severity, cognition, post-anesthesia side effects, and hemodynamics. Twenty one patients were treated with ketamine and 17 with methohexital. There were no significant differences in depression or cognitive outcomes between the two drugs. Additionally, there were no measures of post-anesthesia tolerability or hemodynamics which favored ketamine. Ketamine anesthesia does not accelerate the antidepressant effect of ECT or diminish the cognitive side effects, at least as measured in this study. Furthermore, there is no apparent benefit of ketamine for speed or quality of post-ECT recovery, and it is associated with higher systolic blood pressures after the treatments. Ketamine is associated with longer motor seizure duration than methohexital.

UI MeSH Term Description Entries
D007649 Ketamine A cyclohexanone derivative used for induction of anesthesia. Its mechanism of action is not well understood, but ketamine can block NMDA receptors (RECEPTORS, N-METHYL-D-ASPARTATE) and may interact with sigma receptors. 2-(2-Chlorophenyl)-2-(methylamino)cyclohexanone,CI-581,Calipsol,Calypsol,Kalipsol,Ketalar,Ketamine Hydrochloride,Ketanest,Ketaset,CI 581,CI581
D008297 Male Males
D008723 Methohexital An intravenous anesthetic with a short duration of action that may be used for induction of anesthesia. Methohexitone,Brevimytal Natrium,Brevital,Brietal,Brietal-Sodium,Methohexital Sodium,Methohexital, Monosodium Salt,Brietal Sodium,Monosodium Salt Methohexital,Natrium, Brevimytal,Sodium, Methohexital
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D001794 Blood Pressure PRESSURE of the BLOOD on the ARTERIES and other BLOOD VESSELS. Systolic Pressure,Diastolic Pressure,Pulse Pressure,Pressure, Blood,Pressure, Diastolic,Pressure, Pulse,Pressure, Systolic,Pressures, Systolic
D003071 Cognition Intellectual or mental process whereby an organism obtains knowledge. Cognitive Function,Cognitions,Cognitive Functions,Function, Cognitive,Functions, Cognitive
D003865 Depressive Disorder, Major Disorder in which five (or more) of the following symptoms have been present during the same 2-week period and represent a change from previous functioning; at least one of the symptoms is either (1) depressed mood or (2) loss of interest or pleasure. Symptoms include: depressed mood most of the day, nearly every daily; markedly diminished interest or pleasure in activities most of the day, nearly every day; significant weight loss when not dieting or weight gain; Insomnia or hypersomnia nearly every day; psychomotor agitation or retardation nearly every day; fatigue or loss of energy nearly every day; feelings of worthlessness or excessive or inappropriate guilt; diminished ability to think or concentrate, or indecisiveness, nearly every day; or recurrent thoughts of death, recurrent suicidal ideation without a specific plan, or a suicide attempt. (DSM-5) Depression, Involutional,Major Depressive Disorder,Melancholia, Involutional,Paraphrenia, Involutional,Psychosis, Involutional,Depressive Disorders, Major,Involutional Depression,Involutional Melancholia,Involutional Paraphrenia,Involutional Paraphrenias,Involutional Psychoses,Involutional Psychosis,Major Depressive Disorders,Paraphrenias, Involutional,Psychoses, Involutional
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
D006439 Hemodynamics The movement and the forces involved in the movement of the blood through the CARDIOVASCULAR SYSTEM. Hemodynamic

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