Document Detail


Prognosis after extension of myocardial infarct: the role of Q wave or non-Q wave infarction.
MedLine Citation:
PMID:  3965166     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
We examined whether or not subsets of patients with extension of myocardial infarct were at high risk for early and late mortality. Some data suggest increased risk in patients with non-Q wave infarcts and we hypothesized that infarct extension in this group might be associated with a poorer prognosis than that for patients with extension of Q wave infarcts. A total of 1253 patients with acute myocardial infarction who were included in our data base were followed prospectively. The patients were classified according to electrocardiographic results into the following groups: those with non-Q wave (n = 277) infarcts and those with Q-anterior (n = 462) and Q-inferior (n = 497) infarcts. Extension was diagnosed by two of the following criteria: (1) recurrent chest pain 24 hr or more after admission to the hospital, (2) new persistent electrocardiographic changes, and (3) elevation or reappearance of creatine kinase. By these criteria 85 (6%) patients had extension (8% of non-Q wave infarcts, 6% of Q-anterior infarcts, and 6% of Q-inferior infarcts). Hospital mortality in patients with extension was 15% in those with Q wave infarcts vs 43% in those with non-Q wave infarcts (p less than .01). Nine hundred and fifty-two patients were followed for 1 year. In 24% of those who did not survive 1 year there was extension of infarct; only 6% of survivors had extension (p less than .01).(ABSTRACT TRUNCATED AT 250 WORDS)
Authors:
A S Maisel; S Ahnve; E Gilpin; H Henning; A L Goldberger; D Collins; M LeWinter; J Ross
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Circulation     Volume:  71     ISSN:  0009-7322     ISO Abbreviation:  Circulation     Publication Date:  1985 Feb 
Date Detail:
Created Date:  1985-02-14     Completed Date:  1985-02-14     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  0147763     Medline TA:  Circulation     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  211-7     Citation Subset:  AIM; IM    
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MeSH Terms
Descriptor/Qualifier:
Aged
Electrocardiography*
Female
Humans
Male
Middle Aged
Myocardial Infarction / diagnosis,  mortality*
Prognosis
Grant Support
ID/Acronym/Agency:
HL 17682/HL/NHLBI NIH HHS

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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