Finholt D A, Kettrick R G, Wagner H R, Swedlow D B
Am J Dis Child. 1986 Jul;140(7):646-9. doi: 10.1001/archpedi.1986.02140210044022.
Current guidelines for cardiopulmonary resuscitation in children state that the heart lies under the midsternum in infancy and descends with age. To verify this statement, we studied 55 patients, aged 1 day to 19 years, including eight premature infants, during either routine chest x-ray films or right-sided heart angiography. Using a Cartesian coordinate system determined by radiopaque markers placed on the chest, and computer digitization, we located the center of each patient's cardiac silhouette and/or right ventricle. Using descriptive statistics, we found that the heart lay under the lower third of the sternum in all age groups. Analysis of variance indicated that there was no significant difference in this location between age groups. These results suggest that recommendations for external cardiac massage in infants and children may need to be revised.
当前儿童心肺复苏指南指出，婴儿期心脏位于胸骨正中下方，并随年龄增长而下降。为验证这一说法，我们在55例年龄从1天至19岁的患者（包括8例早产儿）进行常规胸部X光片或右侧心脏血管造影期间进行了研究。我们使用由放置在胸部的不透射线标记确定的笛卡尔坐标系以及计算机数字化技术，定位了每位患者心脏轮廓和/或右心室的中心。通过描述性统计分析，我们发现所有年龄组的心脏均位于胸骨下三分之一处。方差分析表明各年龄组在该位置上无显著差异。这些结果提示，可能需要修订针对婴幼儿和儿童进行体外心脏按压的建议。
