Key result
Cryoablation without fluoroscopy successfully eliminated the slow pathway and two coexisting accessory pathways in a 14-year-old boy with supraventricular tachycardia.
Case Report (n=1)
Demonstrates the feasibility of zero-fluoroscopy cryoablation for complex arrhythmias including AVNRT and multiple accessory pathways in a pediatric patient.
Supports feasibility of zero-fluoroscopy cryoablation in complex pediatric SVT; leaves open safety and efficacy in larger cohorts.
We report the case of a 14-year-old boy patient admitted to our outpatient clinic with palpitations and documented supraventricular tachycardia. Electrophysiological study and ablation were planned. In the electrophysiological study, two tachycardias with different cycle lengths and morphologies were induced. After elimination of the slow pathway, left posterior accessory pathway was detected and successfully ablated. Another pathway was detected following that ablation. Due to the slow retrograde conduction of this pathway, diltiazem infusion was started to uncover the accessory pathway. The second accessory pathway was at the left posteroseptal region and was successfully ablated. After a 30-minute waiting period, no tachycardia was induced. In addition, no fluoroscopy was used during the procedure.
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Gül et al. (2012) conducted a case report in Atrioventricular Nodal Reentrant Tachycardia and Coexisting Accessory Pathways (n=1). Cryoablation without fluoroscopy was evaluated on Successful ablation of AVNRT and accessory pathways without tachycardia induction. Cryoablation without fluoroscopy successfully eliminated the slow pathway and two coexisting accessory pathways in a 14-year-old boy with supraventricular tachycardia.
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