title: Pre-excitation induced left ventricular dysfunction: A less known cause of cardiomyopathy in children.
abstract: 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.
authors.affiliation: Department of Cardiology, Frontier Lifeline Hospitals and K. M. Cherian Heart Foundation, Chennai, India.
authors.forename: Pr Bhima
authors.initials: PB
authors.lastname: Shankar
authors.forename: Chidambaram
authors.initials: C
authors.lastname: Shanthi
authors.forename: Kottarathu Mammen
authors.initials: KM
authors.lastname: Cherian
keywords: Cardiomyopathy; pre-excitation; radiofrequency ablation