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A longitudinal study on electrophysiological properties of atrioventricular accessory pathways in infants and children
Author(s) -
DING SHULAN,
SUMITOMO NAOKATA,
USHINOHAMA HIROYA,
YAMASHITA TSUNEHISA,
HARADA KENSUKE
Publication year - 1995
Publication title -
pediatrics international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.49
H-Index - 63
eISSN - 1442-200X
pISSN - 1328-8067
DOI - 10.1111/j.1442-200x.1995.tb03684.x
Subject(s) - medicine , orthodromic , accessory pathway , electrophysiology , tachycardia , intracardiac injection , supraventricular tachycardia , electrophysiology study , cardiology , electrical conduction system of the heart , electrocardiography , catheter ablation , ablation
In this study the electrophysiological developmental changes of accessory pathway (AP) properties in infants and children are examined. Intracardiac and/or transesophageal electrophysiological studies were performed on seven infants (group 1, mean age 2 months) and four children (group 2, mean age 9 y; study 1), and documented orthodromic atrioventricular tachycardia in all cases. At follow‐up study (study 2), supraventricular tachycardia was induced in three of seven (43%) cases in group 1 and in all four cases in group 2. Changes in antegrade conduction properties of AP were documented by loss of pre‐excitation (two of four cases in group 1) or change to intermittent pre‐excitation (one of two cases in group 2).