Late reperfusion (6-24 hours after onset) improves left ventricular function in patients with acute myocardial infarction

Shoichi Miyamoto, Yoichi Goto, Masatoshi Fujita, Satoshi Daikoku, Noritoshi Nagaya, Satoshi Yasuda, Hitoshi Sumida, Isao Morii, Akira Itoh, Shunichi Miyazaki, Hiroshi Nonogi

研究成果: Article査読

6 被引用数 (Scopus)

抄録

The TAMI-6 trial has demonstrated that coronary reperfusion >6h after onset (ie, late reperfusion) in patients with acute myocardial infarction (AMI) does not improve left ventricular (LV) function during the chronic phase of infarction. However, the low patency rate (only 60%) of the infact-related artery (IRA) during the chronic phase in the TAMI-6 trial raises a new hypothesis that late reperfusion with a higher patency rate may improve LV function during the chronic phase. Forty-four patients with AMI, who were admitted to hospital 6-24 h after the symptom onset and in whom emergency coronary angiography revealed a total occlusion of the IRA, were randomly assigned to either the late reperfusion group (n=22) or the non-reperfusion group (n=22). The initial success rate of reperfusion therapy in the late reperfusion group was 86% and the chronic patency rate of the IRA was 91%. The improvements in ejection fraction and chord shortening in the infarct region from the acute phase to the chronic phase were significantly greater in the late reperfusion group than in the non-reperfusion group. Late reperfusion with a high patency rate of the IRA significantly improves LV global and regional function in patients with AMI.

本文言語English
ページ(範囲)389-394
ページ数6
ジャーナルJAPANESE CIRCULATION JOURNAL
65
5
DOI
出版ステータスPublished - 2001 5月
外部発表はい

ASJC Scopus subject areas

  • 生理学
  • 循環器および心血管医学

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