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The relationship between the electrocardiographically estimated infarct size and 1-2 year survival in acute myocardial infarction
[external].
1985 (English)In: Clinical Cardiology, ISSN 0160-9289, E-ISSN 1932-8737, Vol. 8, no 3, p. 141-147Article in journal (Refereed) Published
Abstract [en]

In 587 patients with acute myocardial infarction (AMI) and no previous MI, electrocardiographically estimated infarct size was related to 1 - and 2-year mortality. The overall mortality was higher in patients with transmural MI (Q- or R-wave changes in standard ECG) than in patients with subendocardial infarction (ST-T-wave changes in standard ECG) after 1 year (18.8% compared to 6.5% p<0.001) and after 2 years (22.2% compared to 13.8%, p=0.049). When patients who were alive during primary hospitalization were analyzed separately, slightly higher mortality was found in patients with transmural MI than in subendocardial MI after 1 year (9.6% compared to 4.2%, p =0.076) while no difference was found after 2 years (13.4% as compared to 11.7%, p>0.2). In a subgroup of patients with anterior MI, precordial mapping with 24 chest leads was analyzed 4 days after arrival in hospital (n=197). Patients were divided into quartiles according to the sum of R waves, the sum of Q waves, and the number of Q waves. There was a similar overall mortality in each quartile after 1 year and after 2 years regardless of ECG parameters studied. Neither did we find any correlation between the sum of R waves in leads II, III, and a VF on the fourth day in patients with inferior MI and overall 1 - or 2-year mortality rate, although there was a trend towards higher mortality with more ECG changes.

Place, publisher, year, edition, pages
John Wiley & Sons, Inc , 1985. Vol. 8, no 3, p. 141-147
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Medical and Health Sciences
Identifiers
URN: urn:nbn:se:hb:diva-7616DOI: 10.1002/clc.4960080304Local ID: 2320/8426OAI: oai:DiVA.org:hb-7616DiVA, id: diva2:888496
Available from: 2015-12-22 Created: 2015-12-22 Last updated: 2017-09-25Bibliographically approved

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Herlitz, Johan

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