Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-58746
von Känel, R; Hari, R; Schmid, J P; Wiedemar, L; Guler, E; Barth, J; Saner, H; Schnyder, U; Begré, S (2011). Non-fatal cardiovascular outcome in patients with posttraumatic stress symptoms caused by myocardial infarction. Journal of Cardiology, 58(1):61-68.
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Posttraumatic 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.
We 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.
Forty-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).
Elevated 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.
|Item Type:||Journal Article, refereed, original work|
|Communities & Collections:||04 Faculty of Medicine > University Hospital Zurich > Clinic for Psychiatry and Psychotherapy|
|DDC:||610 Medicine & health|
|Deposited On:||11 Mar 2012 18:35|
|Last Modified:||01 Jan 2013 05:23|
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