• Shannon M Fernando, Danial Qureshi, Robert Talarico, Simone N Vigod, Daniel I McIsaac, Lee H Sterling, Sean van Diepen, Susanna Price, Pietro Di Santo, Kwadwo Kyeremanteng, Eddy Fan, Dale M Needham, Daniel Brodie, Oscar Joseph Bienvenu, Alain Combes, Arthur S Slutsky, Damon C Scales, Margaret S Herridge, Holger Thiele, Benjamin Hibbert, Peter Tanuseputro, and Rebecca Mathew.
• Division of Critical Care, Department of Medicine, University of Ottawa, Ottawa, ON, Canada. sfernando@qmed.ca.
• Intensive Care Med. 2024 Jun 1; 50 (6): 901912901-912.

PurposeCardiogenic shock secondary to acute myocardial infarction (AMI-CS) is associated with substantial short- and long-term morbidity and mortality. However, there are limited data on mental health sequelae that survivors experience following discharge.MethodsWe conducted a retrospective, population-based cohort study in Ontario, Canada of critically ill adult (≥ 18 years) survivors of AMI-CS, admitted to hospital between April 1, 2009 and March 31, 2019. We compared these patients to AMI survivors without shock. We captured outcome data using linked health administrative databases. The primary outcome was a new mental health diagnosis (a composite of mood, anxiety, or related disorders; schizophrenia/psychotic disorders; and other mental health disorders) following hospital discharge. We secondarily evaluated incidence of deliberate self-harm and death by suicide. We compared patients using overlap propensity score-weighted, cause-specific proportional hazard models.ResultsWe included 7812 consecutive survivors of AMI-CS, from 135 centers. Mean age was 68.4 (standard deviation (SD) 12.2) years, and 70.3% were male. Median follow-up time was 767 days (interquartile range (IQR) 225-1682). Incidence of new mental health diagnosis among AMI-CS survivors was 109.6 per 1,000 person-years (95% confidence interval (CI) 105.4-113.9), compared with 103.8 per 1000 person-years (95% CI 102.5-105.2) among AMI survivors without shock. After propensity score adjustment, there was no difference in the risk of new mental health diagnoses following discharge [hazard ratio (HR) 0.99 (95% CI 0.94-1.03)]. Factors associated with new mental health diagnoses following AMI-CS included female sex, pre-existing mental health diagnoses, and discharge to a long-term hospital or rehabilitation institute.ConclusionSurvivors of AMI-CS experience substantial mental health morbidity following discharge. Risk of new mental health diagnoses was comparable between survivors of AMI with and without shock. Future research on interventions to mitigate psychiatric sequelae after AMI-CS is warranted.© 2024. Springer-Verlag GmbH Germany, part of Springer Nature.

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