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Article type: Research Article
Authors: Isserles, Moshea; b | Daskalakis, Zafiris J.a; b | Kumar, Sanjeeva; b; c | Rajji, Tarek K.a; b; c | Blumberger, Daniel M.a; b; c; *
Affiliations: [a] Temerty Centre for Therapeutic Brain Intervention, Campbell Family Research Institute, Centre for Addiction and Mental Health, Toronto, ON, Canada | [b] Department of Psychiatry, Faculty of Medicine, University of Toronto, Toronto, ON, Canada | [c] Department of Psychiatry, Faculty of Medicine, Division of Geriatric Psychiatry, University of Toronto, Toronto, ON, Canada
Correspondence: [*] Correspondence to: Daniel M. Blumberger, MD, MSc, Medical Head and Co-Director, Temerty Centre for Therapeutic Brain Intervention, Head, Late-Life Mood Disorders Clinic, Clinician Scientist, Campbell Family Research Institute, Centre for Addiction and Mental Health Associate Professor, Department of Psychiatry, University of Toronto, 1001 Queen St. W. Unit 4, ON M6J 1H4, Canada. Tel.: +1 416 535 8501; Fax: +1 416 583 4613; E-mail: daniel.blumberger@camh.ca.
Abstract: Background: Dementia frequently presents with aggression, agitation, and disorganized behavior for which current treatment is partially effective and is associated with significant adverse effects. Objective: The aim of this study was to retrospectively assess the clinical effectiveness and tolerability of electroconvulsive therapy (ECT) in a sample of patients with neuropsychiatric symptoms of dementia (NPS) and to explore factors associated with response and with cognitive adverse effects. Methods: We examined the clinical records of 25 patients with dementia and a pre-existing psychiatric disorder treated with ECT at an academic mental health hospital between April 1, 2010 and January 28, 2016. Twenty-nine acute ECT courses and fifteen maintenance courses were reviewed. We assessed treatment effectiveness and cognitive adverse effects as well as factors associated with response to treatment, including pre-existing psychiatric disorders, concomitant pharmacological treatment and types of dementia. Results: ECT resulted in a clinically meaningful response in 72% of acute treatment courses. Cognitive adverse effects affecting functioning were reported in 7% of the acute treatment courses. Maintenance treatment was effective in sustaining the response in 87% of treatment courses with two reports of significant cognitive adverse effects. One patient fell and experienced a hip fracture a day after treatment. Use of antipsychotic or antidepressant medications, pre-existing psychiatric disorder, or gender were not associated with response. Conclusion: This study shows meaningful clinical effectiveness and good tolerability of ECT in patients with severe NPS of dementia. Furthermore, maintenance ECT was effective in sustaining treatment response.
Keywords: Alzheimer’s disease, dementia, electroconvulsive therapy, neuropsychiatric symptoms
DOI: 10.3233/JAD-161000
Journal: Journal of Alzheimer's Disease, vol. 57, no. 1, pp. 45-51, 2017
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