Open AccessPre-excitation induced left ventricular dysfunction: A less known cause of cardiomyopathy in children
Author(s) -
Pr Bhima Shankar,
Shanthi Chidambaram,
Kottarathu Mammen Cherian
Publication year - 2013
Publication title -
annals of pediatric cardiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.292
H-Index - 19
eISSN - 0974-2069
pISSN - 0974-5149
DOI - 10.4103/0974-2069.107241
Subject(s) - medicine , cardiology , left bundle branch block , dilated cardiomyopathy , cardiomyopathy , accessory pathway , ablation , radiofrequency ablation , heart failure , catheter ablation
A 7-year-old boy was diagnosed to have dilated cardiomyopathy with severe left ventricular (LV) dysfunction at 1 year of age. Although well compensated, his LV function remained impaired over the follow-up years. His electrocardiogram (ECG) was initially misinterpreted as left bundle branch block. However, on follow-up, it was recognized as a pre-excited ECG. The accessory pathway causing pre-excitation was implicated as the cause of LV dysfunction and dysynchrony as the mechanism. Radiofrequency ablation was done. His LV function and dimensions improved significantly over 6 months follow up.