Key result
Successful catheter ablation of two types of complex tachycardias was accomplished using an ultra-high density 3D mapping system inside the lateral tunnel in a patient with a total cavopulmonary connection.
Why the study?
Patients after lateral tunnel total cavopulmonary connection have complicated suture lines and damaged myocardium forming arrhythmogenic substrates, making detailed 3D mapping important for ablation.
Case Report (n=1)
Ultra-high density 3D mapping can facilitate successful catheter ablation of complex tachycardias in patients with a lateral tunnel total cavopulmonary connection.
May facilitate ablation in lateral tunnel Fontan patients; hypothesis-generating pending larger studies.
We report a case of an 18‐year‐old male with a postsurgical lateral tunnel (LT) total cavopulmonary connection (TCPC) and supraventricular tachycardia (SVT). Patients after an LT TCPC have complicated suture lines and a considerable area of damaged myocardium in the LT, which could become a complex arrhythmogenic substrate of tachycardias. Detailed three‐dimensional (3D) mapping of the LT and atrium is important for a successful ablation. In this patient, successful catheter ablation of two types of complex tachycardias was accomplished using an ultra‐high density 3D mapping system inside the LT.
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Mori et al. (2019) conducted a case report in Supraventricular tachycardia post-lateral tunnel total cavopulmonary connection (n=1). Ultra-high density 3D mapping system and catheter ablation was evaluated on Successful catheter ablation. Successful catheter ablation of two types of complex tachycardias was accomplished using an ultra-high density 3D mapping system inside the lateral tunnel in a patient with a total cavopulmonary connection.
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