• Journal of cardiology · Jul 2011

    Non-fatal cardiovascular outcome in patients with posttraumatic stress symptoms caused by myocardial infarction.

    • Roland von Känel, Roman Hari, Jean Paul Schmid, Lina Wiedemar, Erika Guler, Jürgen Barth, Hugo Saner, Ulrich Schnyder, and Stefan Begré.
    • Department of General Internal Medicine, Division of Psychosomatic Medicine, Inselspital, Bern University Hospital, University of Bern, Switzerland. roland.vonkaenel@insel.ch
    • J Cardiol. 2011 Jul 1; 58 (1): 61-8.

    ObjectivesPosttraumatic stress disorder (PTSD) prospectively increases the risk of incident cardiovascular disease (CVD) independent of other risk factors in otherwise healthy individuals. Between 10% and 20% of patients develop PTSD related to the traumatic experience of myocardial infarction (MI). We investigated the hypothesis that PTSD symptoms caused by MI predict adverse cardiovascular outcome.MethodsWe studied 297 patients (61 ± 10 years, 83% men) who self-rated PTSD symptoms attributable to a previous index MI. Non-fatal CVD-related hospital readmissions (i.e. recurrent MI, elective and non-elective intracoronary stenting, bypass surgery, pacemaker implantation, cardiac arrhythmia, cerebrovascular event) were assessed at follow-up. Cox proportional hazard models controlled for demographic factors, coronary heart disease severity, major CVD risk factors, cardiac medication, and mental health treatment.ResultsForty-three patients (14.5%) experienced an adverse event during a mean follow-up of 2.8 years (range 1.3-3.8). A 10 point higher level in the PTSD symptom score (mean 8.8 ± 9.0, range 0-47) revealed a hazard ratio (HR) of 1.42 (95% CI 1.07-1.88) for a CVD-related hospital readmission in the fully adjusted model. A similarly increased risk (HR 1.45, 95% CI 1.07-1.97) emerged for patients with a major or unscheduled CVD-related readmission (i.e. when excluding patients with elective stenting).ConclusionsElevated levels of PTSD symptoms caused by MI may adversely impact non-fatal cardiovascular outcome in post-MI patients independent of other important prognostic factors. The possible importance of PTSD symptoms as a novel prognostic psychosocial risk factor in post-MI patients warrants further study.Copyright © 2011 Japanese College of Cardiology. Published by Elsevier Ltd. All rights reserved.

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