PMID: 15362542Sep 15, 2004Paper

Acute coronary syndrome

Kyobu geka. The Japanese journal of thoracic surgery
Haruo Makuuchi

Abstract

The first choice of interventional treatment for acute coronary syndrome is percutaneous coronary intervention (PCI), especially when the patient is in cardiogenic shock. In cases of acute myocardial infarction, emergency coronary artery bypass grafting (CABG) is indicated when left main trunk (LMT) lesion or severe triple-vessel disease is left after PCI combined with residual or recurrent ischemic angina and/or ST-T change in electrocardiogram (ECG). Similarly, in cases of unstable angina, emergency CABG is indicated when LMT or LMT equivalent (proximal left anterior descending branch and left circumflex branch) is the culprit lesion or when severe triple-vessel disease exists. Urgency of operation and existence of cardiogenic shock are major operative risk factors of CABG in patients with acute coronary syndrome. The surgical mortality of such cases is much higher than that of elective surgery for chronic angina. As employment of cardiopulmonary bypass (CPB) and achievement of cardioplegic arrest is one of the major causes of surgical mortality, off-pump CABG (OPCAB) using no CPB nor cardioplegic solution has recently become popular. OPCAB, however, is difficult to perform when the hemodynamic state is unstable. On-pump beat...Continue Reading

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