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Prognosis in acute myocardial infarction in relation to development of Q-waves
[external].
1991 (English)In: Clinical Cardiology, ISSN 0160-9289, E-ISSN 1932-8737, Vol. 14, no 11, p. 875-880Article in journal (Refereed) Published
Abstract [en]

In a totally nonselected group of patients with acute myocardial infarction (AMI) (n = 921) admitted from the emergency department to the coronary care unit or other hospital ward, the occurrence of non-Q-wave AMI and the prognosis in these patients was determined and compared with those in whom Q waves were developed. Fifty-two percent had AMI without new Q waves. Patients with a non-Q-wave AMI differed from patients with Q-wave AMI, more frequently having a previous history of AMI (p less than 0.001), angina pectoris (p less than 0.01), diabetes mellitus (p less than 0.05), congestive heart failure (p less than 0.001), and a higher mean age (p less than 0.001), whereas smoking was more common in Q-wave AMI. Patients with non-Q-wave AMI had a 1-year mortality of 31% compared with 26% in Q-wave AMI (p greater than 0.2) and a reinfarction rate of 20% compared with 12% for Q-wave AMI (p less than 0.01). Among patients aged less than 75 years without a previous history of AMI, congestive heart failure, and diabetes mellitus, the 1-year mortality rate was 16% for patients with Q waves versus 15% for those without Q waves (NS). Appearance of Q waves was not independently associated with death. We conclude that in a nonselected group of patients with AMI the occurrence of a non-Q-wave AMI is much higher than previously reported. The prognosis in AMI during one year of follow-up is not associated with development of Q waves.

Place, publisher, year, edition, pages
John Wiley & Sons, Inc. , 1991. Vol. 14, no 11, p. 875-880
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:hb:diva-7693Local ID: 2320/8519OAI: oai:DiVA.org:hb-7693DiVA, id: diva2:888574
Available from: 2015-12-22 Created: 2015-12-22 Last updated: 2017-09-29Bibliographically approved

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Herlitz, Johan

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CiteExportLink to record
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  • apa
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