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KMID : 0368119930230040495
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Korean Circulation Journal
1993 Volume.23 No. 4 p.495 ~ p.497
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Acue Myocardial Infarction in Korea
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Abstract
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Bacground:
@EN Recently, the incidence of acute myocardial infarction increased with prolongation of life spans, improvements in food and life styles in Korea. But only few studies were reported after the newly developed diagnostic methods and treatment
modalities
were introduced. So, the study on elft ventricular ejection fraction. findings in coronary angiography. uses of thrombolytic agents was needed.
@ES Methods:
@EN A retropsective clinical study was done on 654 patients with acute myocardial infarction who had been admitted to Severance hospital from January 1985 to December 1991 within 30 days after the onset of symptoms. Coronary angiogram and
radionuclide
ventriculography was done as usual methods.
@ES Results:
@EN The mean age was 58.5 years. and the ratio of males to females was 3.3:1. The major risk factors were smoking, hypertension and diabetes mellitus in males. and hypertension. diabetes mellitus and obesity in females. Arrhythmias were found in
360
patients (56.4%). The most frequent arrhythmia was premature ventricular contraction. Sinus bradycardia and atrioventricular blocks were more frequent in anterior infarction. The peak serum CK and CK-MB levels were higher in patients of anterior
infarction than in those of inferior and non-Q wave infarction. The left ventricalar ejection fractions were higher in the pateints with non-Q wave infarction. inferior infarction than in the patients with anterior infarction. There was no
difference in
left ventricular ejection fraction between pateints who received thrombolytic therapy and not treated patients. Coronary angiograms were performed in 362 patients and 184 patients (50.8%) had one-vessel disease. The short-term mortality rate was
15.1%.
The most commo n cause of death was cardiogenic shock (60.6%). Poor prognosis was found in patients with a history of previous myocardial infarction, those over 60 years old, those with a complete heart block and those of the female sex. The
short-term
mortality was higher in anterior infarction than inferior infarction and short-term mortality was higher in Q wave infarction than non-Q wave infarction.
@ES Conclusions:
@EN This study suggests that smoking was the most common risk factor but hypercholesterolemia and obesity were less significant. According to coronary angiogram. One-vessel disease was the most common. and the rate of insignificant reduction in
luminal
diameter was higher than western countries. The short-term mortality rate of acute myocardial infarction was higher than those of western countries. The cause of high mortality rate was considered due to delay in transportation of patients to
hospital.
The education about acute myocardial infarction should be done to public and transportation system must be improved.
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KEYWORD
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