Key result
Cryoablation of the slow AV nodal pathway via a transbaffle approach was successfully performed in a patient with d-transposition of the great arteries status post the Mustard procedure.
Case Report (n=1)
Demonstrates the feasibility of cryoablation of the slow AV nodal pathway via a transbaffle approach in a patient with d-transposition of the great arteries post-Mustard procedure.
May be feasible in select post-Mustard patients; hypothesis-generating and should not yet change practice.
The ablation of atrioventricular (AV) nodal reentrant tachycardia in patients with the Senning or Mustard procedure is quite challenging because these atrial baffle procedures isolate the AV node from systemic venous access. Cryoablation is commonly utilized for AV nodal slow pathway modification in patients with structurally normal hearts. The cryoablation technique offers the advantage of monitoring AV nodal conduction during lesions, with the ability to terminate a lesion prior to permanent injury to the AV node. This case describes the successful cryoablation of the slow AV nodal pathway via the transbaffle approach in a patient with d-transposition of the great arteries status post the Mustard procedure.
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McCanta et al. (2011) conducted a case report in Atrioventricular nodal reentrant tachycardia in d-transposition of the great arteries status post Mustard procedure (n=1). Cryoablation of the slow AV nodal pathway via a transbaffle approach was evaluated on Successful cryoablation. Cryoablation of the slow AV nodal pathway via a transbaffle approach was successfully performed in a patient with d-transposition of the great arteries status post the Mustard procedure.
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