This case demonstrates the feasibility of successful transbaffle catheter ablation for non-reentrant pulmonary vein tachycardia in a patient with a prior Mustard operation.
May support transbaffle ablation in post-Mustard PV tachycardia; hypothesis-generating and should not yet change practice.
A 46-year-old woman with a history of transposition of the great arteries, Mustard operation, and tricuspid valve (TV) replacement underwent catheter ablation of atrial tachycardia (AT) (Panel A). No early activation was found in the systemic venous atrium (SVA). Transbaffle puncture was performed with the guidance of fluoroscopy and venogram to map in the pulmonary venous atrium (PVA), revealing a centrifugal activation pattern from the right superior pulmonary vein (RSPV) ostium (Panel B). A radiofrequency application at the earliest activation site (Panels C and D) eliminated the AT. This case illustrated successful transbaffle catheter ablation of a non-reentrant pulmonary vein tachycardia after a Mustard operation. Conflict of interest: none declared.
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Yoshida et al. (2014) studied this question.
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