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급성 심근 경색 후 협심증 환자에서의 관상동맥 우회술 후 좌심실 수축 기능의 호전

Other Titles
 Left Ventricular Systolic Function Improvement after Surgical Revascularization in Postinfarction Angina 
 이기종  ;  박성용  ;  임상현  ;  홍유선  ;  유경종  ;  장병철 
 Korean Journal of Thoracic and Cardiovascular Surgery (대한흉부외과학회지), Vol.39(9) : 674-680, 2006 
Journal Title
 Korean Journal of Thoracic and Cardiovascular Surgery (대한흉부외과학회지) 
Issue Date
Coronary artery bypass surgery ; Myocardial infarction ; Echocardiography
Background: Acute myocardial infarction (MI) is a life-threatening disease and surgical revascularization plays a major role in selected cases. The purpose of this study is to evaluate the left ventricular contractility improvement by examining the wall motion score index (WMSI) and left ventricular ejection fraction (LVEF) in patients who underwent surgical revascularization under diagnosis of acute MI. Material and Method: From January, 2001 to December, 2004, 149 patients who underwent coronary artery bypass surgery within 2 weeks of acute MI were included. We evaluated pre- and postoperative left ventricular contractility by measuring WMSI and LVEF and examined the associating factors. Result: WMSI decreased from 1.54±4.30 to 1.43±0.40 (p<0.001) and LVEF increased from 48.1±12.2% to 49.7±12.3% after surgery (p=0.009). Off-pump technique, non-Q wave, anterior MI, and surgery within 7 days after MI were favorable factors for LVEF improvement (p=0.046, p=0.006, p=0.003, p= 0.005, respectively). Conversely, aforementioned factors were irrelevant with WMSI improvement. For triple vessel disease, complete revascularization was favorable factor for WMSI improvement (p<0.001). Conclusion: Coronary artery bypass surgery can improve WMSI and LVEF in patients with acute MI. In case of anterior MI with non-Q wave, early surgical revascularization within 7 days may be most beneficial in LVEF improvement. Regarding WMSI, complete revascularization may be essential.
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1. College of Medicine (의과대학) > Dept. of Thoracic and Cardiovascular Surgery (흉부외과학교실) > 1. Journal Papers
Yonsei Authors
Yoo, Kyung Jong(유경종) ORCID logo https://orcid.org/0000-0002-9858-140X
Chang, Byung Chul(장병철)
Hong, You Sun(홍유선)
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