- 期刊
正常中國兒童M型超音波心圖之研究
A M-Mode Echocardiographic Study of the Normal Chinese Children
摘要
作者自69年4月至70年4月為285名正常中國人（年齡自新生兒至18歲青年）做M-型超音波心圖檢查，以建立各不同年齡層次孩童之正常M型超音波心圖度量值，並觀察由於兒童之發育所引超音波心圖度量值之變化。茲發現：1經線性廻歸分析，體重及體表面積之平方根及立方根皆與超音波心圖心臟血管徑（包括左心室內徑、左心房內徑、主動脈內徑、二尖瓣振幅，三尖瓣振幅、左心室後壁厚度、心髒深度）成正比之關係。其中以體表面積之立方根與心臟之發育有最佳之線性關係。2.男童之心臟血管度量值較女童稍大，但經體表面積校正後此差異即無統計學之意義。3.在心室收縮期縮短百分率，左心收縮時段、左心室射血比率值與發育無關，維持恒定。4. 右心室舒張期內徑、心室中隔深度、右心收縮時段均在嬰兒期最高。5. 中國與西洋兒童之超音波心圖心髒血管徑有明顯之差異。本研究建立正常中國兒童之超音波心圖資料，並分析發育的變化對超音波心圖數據的影響。作者希望能因此對兒童超音波心圖有更正確的判讀。
關鍵字
無資料並列摘要
M-mode echocardiograms of 285 normal Chinese children, aged from newborn to 18 years old, were analyzed, and the following conclusions were obtained: 1. The square root and cubic root of the body surface area (BSA) and body weight (BW) correlated nearly equal v well with increasing echocardiographic dimensions as the individual grows up. 2 By using the cubic root function, the best correlations were obtained between BSA and echocardiographic dimensions with the value of r around 0.90. 3. The percent dimension change of left ventricle, left side systolic time interval, and ejection fraction of left ventricle were independent of growth change. 4. The right side systolic time interval and right ventricle internal dimension were largest at the neonatal period, then declined abruptly at early infancy. This phenomenon may be due to the postnatal hemodynamic change. 5. There was a small hot statistically significant difference in the echocardiographic dimensions between malt and female children based in body weight. But the diference could be corrected basing on body surface area. 6. Considerable difference exists between the Chinese acid the Caucasian childhood echocardiographic data. 7 The growth pattern of the heart was obtained by plotting the echocardiographic dimensions against BSA. These figures clearly demonstrated the echocardiographic changes during growth.