J Korean Pediatr Soc.  1982 Mar;25(3):217-224.

Echocardiographic study of left ventricular function in infants and children

• Kim TS
• Chun SJ
• Son CS
• Tockgo YC
• Choe PH

Abstract

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.

Keyword

Echocardiography; Left ventricular function; stroke volume; cardiac index; ejection fraction; cardiac output; percent of fractional shortening

MeSH Terms

Adult
Cardiac Output
Child*
Diagnosis
Echocardiography*
Heart
Heart Defects, Congenital
Humans
Infant*
Reference Values
Stroke Volume
Ventricular Function, Left*