4.7 Article

Risk factors for mortality of medical causes within 30 days of electroconvulsive therapy

Journal

JOURNAL OF AFFECTIVE DISORDERS
Volume 320, Issue -, Pages 527-533

Publisher

ELSEVIER
DOI: 10.1016/j.jad.2022.10.008

Keywords

Electroconvulsive therapy; Medical risk factors; Death

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Electroconvulsive therapy (ECT) appears to be a low-risk medical procedure for treating severe psychiatric disorders, but older individuals with severe somatic diseases have a higher risk of death. Extra measures should be taken to optimize their medical health during the pre-ECT workup, and during and after ECT.
Background: Electroconvulsive therapy (ECT) is used to treat severe psychiatric disorders and is associated with reduced risk of suicide and all-cause mortality in patients with severe depression. We investigated the causes of death occurring shortly after ECT and identified potential risk factors for medical causes of death.Methods: Patients treated with ECT between 2012 and 2018 were included in this Swedish register-based study. Multivariate binary logistic regression was used to calculate odds ratios for covariates to determine potential predictors of 30-day mortality.Results: Of the 20,225 included patients, 93 (0.46 %) died of suicide and 123 (0.61 %) died of medical causes after ECT. Cardiovascular disease was the most common medical cause of death (n = 49, 40 %). An older age, a Charlson Comorbidity Index of 1 or more, atrial fibrillation, kidney disease, reflux disease, dementia, and cancer were associated with increased risk of death by medical causes.Limitations: Real-life observational studies based on registry data may demonstrate associations, but cannot determine causality. If medical records had been available, we would be better able to determine if deaths were due to the ECT, anesthesia, pre-existing medical conditions, or the mental disorder.Conclusions: ECT appears to be a low-risk medical procedure. Older individuals with severe somatic diseases have the highest risk of death and extra measures should be considered to optimize their medical health during the pre-ECT workup, and during and after ECT.

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