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Year : 2021  |  Volume : 5  |  Issue : 3  |  Page : 86-89

Mid cristal atrial tachycardia and ivabradine: A Case Report

Department of Cardiology, All India Institute of Medical Sciences, Bhubaneswar, Odisha, India

Correspondence Address:
Dr. Debasish Das
Department of Cardiology, All India Institute of Medical Sciences, Bhubaneswar - 751 019, Odisha
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/hm.hm_35_21

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We present an extreme rare case of cristal atrial tachycardia (AT) in a 23-year-old male presenting with recurrent refractory palpitation since last 1 year treated with betablocker metoprolol 50 mg twice daily. We subjected the patient for electrophysiologic study and radiofrequency ablation and A wave in the mid cristal region preceded the surface P-wave by 16 ms. Ablation here terminated the tachycardia but interestingly patient turned up with recurrent palpitation after 1 month. In view of mid cristal AT, we treated the patient with Ivabradine 5 mg twice daily after which the patient was asymptomatic in follow up. Our case is a unique demonstration of sinus node funny current inhibitor Ivabradine being effective to relieve symptoms even in failed cases of radiofrequency ablation with partial modification of mid cristal region in a case of recurrent mid cristal AT. Our take home message from this electrophysiology experience is that even in cases with partial modification of crista terminalis or failed radiofrequency ablation of Cristal atrial tachycardia Ivabradine can serve as an alternative before proceeding to 3D ablation.

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