Calcaterra G, Puglisi R
Ospedale Aiuto Materno, Palermo, Italy.
Int J Cardiol. 1989 Aug;24(2):236-8. doi: 10.1016/0167-5273(89)90312-4.
In a series of 1036 routine electrocardiograms, 14 children, without clinical and echocardiographic evidence of heart disease, showed a left axis deviation in the standard electrocardiogram. Six children also had an incomplete right bundle branch block. Left axis deviation is defined as a mean frontal QRS complex axis being -30 degrees or less. The age varied from three months to 10 years, with a clear predominance of males (13/14). The unusual finding of left QRS axis deviation in normal children is emphasized.
在1036份常规心电图中，14名儿童在标准心电图上显示左轴偏移，他们没有心脏病的临床和超声心动图证据。6名儿童还存在不完全性右束支传导阻滞。左轴偏移定义为额面平均QRS波群电轴为-30度或更小。年龄从3个月到10岁不等，男性明显占主导（13/14）。强调了正常儿童中左QRS轴偏移这一不寻常的发现。
