Muhammad Rashid Chaudhry.
Cardiomyopathy-tachycardia induced? review
Pak Heart J Jun 2005;38(1-2):18-29.
Shaikh Zayed Hospital, Lahore

Tachycardia-induced cardiomyopathy. if diagnosed and treated, in time is a reversible cause of heart failure. The clinical manifestations, neurohumoral mechanisms, and treatment of this condition are like any other type of heart failure. Uniquely, treatment of the tachycardia responsible for the condition, often results in clinical improvement and gross resolution of the heart failure. It is not known weather it scars the myocardium. which could increase the vulnerability to future development of heart failure but it is well known that once myocardium has dilated and thinned out, complete reversal to normality is not possible. The importance of restoring and maintaining sinus rhythm, or at least controlling the ventricular rate in these patients cannot be overemphasized. In patients with pacemakers, using demand mode pacing and sequential dualchamber pacing is important. Various standard therapeutic options can help contain the damage and probably reverse it. Treatment modalities of recent past like radiofrequency catheter ablation and pacing, ICDs and ventricular resynchronization have to be brought to the benefit of common people in terms of cost and availability. Further research in the field of causes and control of arrhythmias, apoptosis, fibrosis, remodeling, cardiomyocytes genesis and implants, may discover more pivotal and focused therapeutic targets for intervention. Until then, heightened awareness of this condition, possible prevention, timely and judicious use of available resources are only hope for its management.

Category: Cardiology
Keywords: Cardiomyopathy.

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