Left axis deviation in healthy infants and children.
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.
Ospedale Aiuto Materno, Palermo, Italy.
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Calcaterra
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R
Puglisi
D002037:Bundle-Branch Block / Q000175:diagnosis*; D002648:Child; D002675:Child, Preschool; D003937:Diagnosis, Differential; D004562:Electrocardiography; D005260:Female; D005500:Follow-Up Studies; D006330:Heart Defects, Congenital / Q000175:diagnosis*; D006345:Heart Septal Defects, Ventricular / Q000175:diagnosis; D006801:Humans; D007223:Infant; D008297:Male; D012016:Reference Values