Key result
Endocardial ablation restores LVEF and normalizes left chamber size in a refractory focal AT case.
Why the study?
Focal atrial tachycardia is a rare type of supraventricular tachyarrhythmia, generally present in young people, and is a rare cause of tachycardiomyopathy.
Case Report (n=1)
Endocardial ablation can successfully reverse tachycardiomyopathy caused by incessant focal atrial tachycardia refractory to medical therapy.
May support ablation consideration in refractory focal atrial tachycardia cardiomyopathy; hypothesis-generating and requires prospective validation.
Focal atrial tachycardia is a rare type of supraventricular tachyarrhythmia, generally present in young people, and is a rare cause of tachycardiomyopathy (10%). We present a clinical case of tachycardiomyopathy in a 30-year-old man, without comorbidities, who was diagnosed with incessant focal atrial tachycardia, refractory to medical therapy, and electrical cardioversion. Successful endocardial ablation was performed, and in outpatient follow-up at 6 months, he showed a recovery of the left ventricular ejection fraction and reduction of the left chambers to normal ranges, with progressive decrease of dyspnea.
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Moreno et al. (2021) conducted a case report in Tachycardiomyopathy secondary to incessant focal atrial tachycardia (n=1). Endocardial ablation was evaluated on Recovery of left ventricular ejection fraction and reduction of left chambers to normal ranges. Endocardial ablation for refractory incessant focal atrial tachycardia in a 30-year-old man resulted in recovery of left ventricular ejection fraction and normal left chamber sizes at 6 months.
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