TACHYCARDIA-INDUCED CARDIOMYOPATHY IN A CARDIAC TRANSPLANT RECIPIENT - TREATMENT WITH RADIOFREQUENCY CATHETER ABLATION

Introduction: Two years after orthotopic cardiac transplantation, a 60 -year-old man presented- with unexplained congestive heart failure and an incessant atrial tachycardia. Methods and Results: Electrophysiolo gic evaluation identified the underlying arrhythmia as automatic atria l tachycardia with site of origin at the high anterior lateral right a trial wall, Radiofrequency catheter ablation successfully eliminated t he tachycardia, which resulted in prompt improvement of this patient's congestive heart failure. Conclusion: This is the first reported case of tachycardia-induced cardiomyopathy in a cardiac transplant patient , Radiofrequency catheter ablation can be used successfully in this pa tient population.