Key result
Catheter ablation successfully treated two distinct long RP tachycardias (atypical AVNRT and ORT via a decremental right-sided accessory pathway) in one patient, with no recurrence at 10 months.
Case Report (n=1)
No
This case report highlights the rare occurrence and successful ablation of two distinct long RP tachycardias in a single patient presenting with aborted cardiac arrest.
Rare dual long RP tachycardias may warrant thorough EP mapping in aborted arrest; hypothesis-generating for multi-mechanism SVT.
A 30-year-old woman with a structurally normal heart and aborted cardiac arrest in the setting of exertion underwent a diagnostic electrophysiologic study. Two long RP narrow QRS tachycardias were induced during the study. The tachycardia characteristics and the results after ventricular entrainment showed a subtle difference between the two tachycardias. Allowing for proper diagnosis and treatment of each tachycardia, no supraventricular tachycardia could be induced after ablation at two separate sites. This is a rare and challenging case in which two long RP tachycardias with different mechanisms were diagnosed and treated in the same patient. To the best of our knowledge, this is the first report of this finding.
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Hiroyuki Ito (2016) conducted a case report in Long RP Tachycardia (n=1). Electrophysiologic study and catheter ablation was evaluated on Inducibility of supraventricular tachycardia after ablation. Catheter ablation successfully treated two distinct long RP tachycardias (atypical AVNRT and ORT via a decremental right-sided accessory pathway) in one patient, with no recurrence at 10 months.
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