Circulation Journal
Online ISSN : 1347-4820
Print ISSN : 1346-9843
ISSN-L : 1346-9843
Clinical Investigation
Predictors of In-Hospital Outcome After Primary Percutaneous Coronary Intervention for Recurrent Myocardial Infarction
Jun ShiraishiYoshio KohnoTakahisa SawadaMitsuo TakedaMasayasu AriharaMasayuki HyogoTakakazu YagiTakatomo ShimaTakashi OkadaTakeshi NakamuraSatoaki MatobaHiroyuki YamadaTakeshi ShirayamaMakoto KitamuraKeizo FurukawaHiroaki MatsubaraThe AMI-Kyoto Multi-Center Risk Study Group
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2008 Volume 72 Issue 8 Pages 1225-1229

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Abstract

Background Recurrent acute myocardial infarction (AMI) is a deteriorated condition with high in-hospital morbidity and mortality, but the predictors of in-hospital outcome after primary percutaneous coronary intervention (PCI) for repeat AMI remain unclear. Methods and Results Using the AMI-Kyoto Multi-Center Risk Study database, clinical background, angiographic findings, results of primary PCI, and in-hospital prognosis were retrospectively compared between primary PCI-treated AMI patients with previous myocardial infarction (MI) (repeat-MI patients, n=235) and those without previous MI (first-MI patients, n=1,550). The repeat-MI patients had higher prevalence of Killip class ≥3 at admission, larger number of diseased vessels, and a significantly higher in-hospital mortality rate than the first-MI patients. On multivariate analysis, number of diseased vessels ≥2 or diseased left main trunk (LMT) on initial coronary angiography was the independent positive predictor of in-hospital mortality in the repeat-MI patients, not in the first-MI patients, whereas acquisition of Thrombolysis In Myocardial Infarction 3 flow in the infarct-related artery immediately after primary PCI and elapsed time <24 h were the negative predictors in the first-MI patients, not in the repeat-MI patients. Conclusions Number of diseased vessels ≥2 or diseased LMT on initial coronary angiography is an independent risk factor of in-hospital death in recurrent-AMI patients undergoing primary PCI. (Circ J 2008; 72: 1225 - 1229)

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© 2008 THE JAPANESE CIRCULATION SOCIETY
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