Pulsed Field Ablation of Macro-Reentrant Atrial Tachycardia Involving the Persistent Left Superior Vena Cava.
Noriyuki Kobayashi, Yasuharu Matsunaga-Lee, Yasuyuki Egami et al.
✦ AI-curated · Sources linked
Case in brief
A 51-year-old man with a persistent left superior vena cava (PLSVC) underwent catheter ablation with a PulseSelect PFA Loop catheter. Sustained atrial tachycardia developed during the procedure and was identified as macro-reentrant, involving the PLSVC–left atrium epicardial connection. Intracardiac mapping and pulsed field ablation were performed using PFA; ablation within the PLSVC terminated the tachycardia without complications.
What made this case unusual
The macro-reentrant circuit involved the PLSVC–left atrium epicardial connection, and both mapping and treatment were performed using PFA in this challenging anatomy.
Diagnostic / clinical pearl
In a patient with PLSVC and sustained atrial tachycardia, consider a macro-reentrant circuit involving the PLSVC–left atrium epicardial connection.
Why it matters
This case demonstrates that PFA-based mapping and ablation can terminate tachycardia involving this anatomical connection without complications in an individual patient.