Electrophysiologic Study of the Conduction System in Normal Children
1 Department of Pediatrics (Division of Cardiology), University of California Los Angeles School of Medicine, and the Department of Pediatrics (Section of Cardiology), Baylor College of Medicine and Texas Children's Hospital Houston
Values for cardiac conduction intervals obtained from normal children are reported so that the data will be available for comparison with patients who are suspected of having abnormalities. Sinus node recovery time correlated linearly with the resting PP interval. The mean intra-atnal conduction was considerably shorter in children (< 25 msec) than in adults (42 msec). The atrioventricular node had similar electrophysiologic properties in the child and adult. With aging, the His bundle to Purkinje fiber time increased significantly (P < .01).
Submitted on October 4, 1976Accepted on January 31, 1977




