Copyright © 1984 by the European Society of Cardiology.
© 1984 The European Society of Cardiology
The entry ECG in the early diagnosis and prognostic stratification of patients with suspected acute myocardial infarction
*Department of Cardiovascular Medicine, John Radcliffe Hospital, University of Oxford OX3 9DU
ICRF Cancer Studies Unit, Nuffield Dept of Clinical Medicine, Radcliffe Infirmary Oxford
Regional Cardiac Centre, Wythenshawe Hospital Manchester, U.K.
Received 17 January 1984; revised 9 May 1984; .
Address for correspondence: S. Yusuf. Clinical Trials Branch. National Heart, Lung, and Blood Institute, Federal Building. Room 216, 7550 Wisconsin Avenue. Bethesda, MD 20205. U.S.A. No reprints of this article are available.
Abstract
475 patients with suspected uncomplicated myocardial infarction (MI) were divided into 3 groups based on their entry ECG: group 1 — significant ST elevation; group 2a — ST depression or T inversion, group 2b — normal ECG. Infarction was confirmed in 99.7% of group 1, 68.5% of group 2a and 39.7% of group 2b patients. Despite similar clinical, haemodynamic and historical variables at presentation, group 1 patients had significantly larger MI, more in-hospital complications and a higher short-term and longterm mortality (P<0.005) than group 2 patients.
The entry ECG of patients with suspected MI is an excellent and simple predictor of those who are most likely to have an MI confirmed and identifies a group of patients at high risk of death or developing complications.
Key Words: Myocardial infarction • diagnosis • prognosis • ECG
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