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Characteristics and Outcomes of MI Patients with and without Chest Pain: A Cohort Study

, : Characteristics and Outcomes of MI Patients with and without Chest Pain: A Cohort Study. Heart, Lung & Circulation 24(8): 796-805

There are conflicting data on patient characteristics and outcomes of myocardial infarction (MI) patients presenting with and without the symptom of chest pain. Compare the characteristics and survival of patients stratified by the symptom chest pain. This retrospective cohort study identified patients with an emergency department discharge diagnosis of MI, who arrived by ambulance at a teaching hospital in Perth, Western Australia, between January 2008 to October 2009. The cohort was linked to hospital data and the state-based death register; clinical data were extracted by medical record review. Patient characteristics were compared using logistic regression models and survival analysis using Kaplan-Meier curves and Cox regression models. Of 382 patients, 26% presented without chest pain. The odds of presenting without chest pain were increased if aged 80+ (OR 7.54; 95%CI 2.81-20.3) and aged 70-79 years (OR 4.33; 95% CI 1.50-12.5), and female (OR 1.67; 95%CI 0.99-2.82). The adjusted hazard (median follow-up time 2.2 years) of presenting without chest pain was not significantly associated with survival (HR 1.03; 95%CI 0.71-1.48). Characteristics differed between patients with and without chest pain. However, the symptom of chest pain was not associated with survival.


PMID: 25797327

DOI: 10.1016/j.hlc.2015.01.015

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