Correlation of residual stenosis immediately after coronary angioplasty with long-term prognosis

Catheterization and Cardiovascular Diagnosis
Shunichi MiyazakiH Nonogi

Abstract

This study evaluated the correlation of residual stenosis after percutaneous transluminal coronary angioplasty with the long-term prognosis. Among consecutive 1,230 patients who underwent coronary angioplasty in the National Cardiovascular Center in Osaka, Japan, 894 patients had de novo lesions. Of these, the 70 patients with acute myocardial infarctions and 105 with unstable angina who had emergency coronary angioplasties were excluded from the study. Among the remaining 719 patients, successful dilatation of the main target vessel was achieved in 592 patients, who then comprised the study group. They were divided into three groups according to their residual stenosis (RS) immediately after coronary angioplasty: group A, RS < 15% (n=208); group B, 15% < or = RS < or = 35% (n=286), and group C, 35% < RS < 50% (n=98). The duration of follow-up was 1,668, 1,660, and 1,680 days in group A, B, and C, respectively. The groups A, B, and C were not significantly different in terms of age, history of myocardial infarction, left ventricular ejection fraction, number of diseased vessels and target vessels, and risk factors such as hypertension, hyperlipidemia, and diabetes mellitus. Primary end point of follow-up was defined as death fr...Continue Reading

References

Feb 1, 1991·Journal of the American College of Cardiology·M NobuyoshiK Kim
Jan 1, 1974·Perspectives in Biology and Medicine·D W Urry
May 1, 1994·The American Journal of Cardiology·C Le FeuvreJ Crépeau
Dec 1, 1993·Journal of the American College of Cardiology·G ZuanettiM G Franzosi

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Citations

Jan 8, 2008·Journal of Vascular Surgery·Brajesh K LalZafar Jamil
Apr 16, 1998·Catheterization and Cardiovascular Diagnosis·T Feldman
Mar 8, 2003·International Journal of Cardiovascular Interventions·DJ BrullDP Lipkin

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