Cardiogenic shock due to arrhythmia-induced cardiomyopathy and its recovery after radiofrequency ablation under extracorporeal membrane oxygenation support

What we learned from this case:▪Incessant atrial tachycardia can present with profound cardiomyopathy and cardiogenic shock, the most extreme presentation of arrhythmia-induced cardiomyopathy.▪Arrhythmia-induced cardiomyopathy is reversible after the restoration of sinus rhythm and normal heart rate. An invasive strategy should be considered if the arrhythmia is medically refractory.▪The use of left ventricular assistance support devices should be considered when needed to permit treatment of the arrhythmia. ▪Incessant atrial tachycardia can present with profound cardiomyopathy and cardiogenic shock, the most extreme presentation of arrhythmia-induced cardiomyopathy.▪Arrhythmia-induced cardiomyopathy is reversible after the restoration of sinus rhythm and normal heart rate. An invasive strategy should be considered if the arrhythmia is medically refractory.▪The use of left ventricular assistance support devices should be considered when needed to permit treatment of the arrhythmia.