Author/Authors :
Ghandi، Yazdan نويسنده Amirkabir Hospital, Arak University of Medical Sciences, Arak, IR Iran , , Sharifi، Mehrzad نويسنده Department of Cardiac Surgery, Rajaie Cardiovascular, Medical and Research Center, Tehran University of Medical Sciences, Tehran, Iran. , , Hashemi Jazi، Seyed Mojtaba نويسنده Scientific member of Reserch Center of Agriculture Center of Shahrekord , , Yousefi Chaichi، Parsa نويسنده Amirkabir Hospital, Arak University of Medical Sciences, Arak, IR Iran , , Shafiee، Akbar نويسنده Tehran Heart Center, Tehran University of Medical Sciences, Tehran, Iran. ,
Abstract :
Tachycardia-induced cardiomyopathy (TIC) is a ventricular
dysfunction secondary to chronic and persistent tachycardia that can
regress partially or completely following heart rate normalization.
Paroxysmal atrial tachycardia and permanent junctional reciprocating
tachycardia are two types of frequent arrhythmias that can cause
cardiomyopathy in children. A 12-year-old child with obesity (body mass
index > 26.8) was admitted with fatigue, pallor and tachypnea to
the clinic. He had palpitation for the past 24 hours. On the cardiac
auscultation, holosystolic 2/6 murmur was heard in the apex as well as
gallop rhythm. Electrocardiogram revealed heart rate of 150 - 160 bpm
and negative P waves in II, III and AVF leads. The echocardiography
revealed dilated cardiomyopathy with an ejection fraction of 30%.
Diagnosis of tachycardia-induced cardiomyopathy in children is
important, since appropriate treatment improves the prognosis. Every
child with recurrent and persistent palpitation with the first episode
of congestive heart failure should be evaluated for tachycardia- induced
cardiomyopathy.
