| Echocardiographic study of left ventricular function in infants and children. |
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Tai Sik Kim, Se Jin Chun, Chang Sung Son, Young Chang Tockgo, Pyung Hwa Choe |
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Department of Pediatrics, College of Medicine, Korea University, Korea. |
| 起音波心音響圖를 利用한 正常小兒의 左心室機能에 關한 硏究 |
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金泰植, 千世鑛, 孫昌星, 獨孤英昌, 崔平和 |
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高麗醫大 小兒科學敎室 |
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| Abstract |
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The Echocardiography is a useful non-invasive diagnostic tool for cardiac evaluation without known risk, and its application in the diagnosis and management of congenital heart disease in infants and children has become indispensable. Especially left ventricular echocardiogram appears to be a effective technique for determination of left ventricular dimensions and volume, other echocardiographic index of left ventricular function. There are numerous echocardiographic studies for normal and abnormal heart of adult, but few in Korean infants and children. Echocardiographic studies were performed on 103 normal infants and children to obtain the normal value of stroke volume, cardiac index, ejection fraction, cardiac out put, percent of fractional shortening which were related to left ventricular function. The result obtained were as follows: 1) Normal mean stroke volume was 39.2314.49ml. 2) Normal mean cardiac index was 4.111.20L/min./m2. 3) Normal mean ejection fraction was 69.4411.31%. 4) Normal mean cardiac output was 3.481.10L. 5) Normal mean percent of fractional shortening was 38.908.07%. The normal values of stroke volume, cardiac output were increased by aging,but no significant differences were found in cardiac index, ejection fraction, percent of fractional shortening. |
| Key Words:
Echocardiography, Left ventricular function, stroke volume, cardiac index, ejection fraction, cardiac output, percent of fractional shortening |
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