Key result
Radiofrequency catheter ablation transecting the pathway between the scar and crista terminalis successfully eliminated IART in 2 patients with failed standard ablation.
Why the study?
Does transection of the corridor between the crista terminalis and the incision scar eliminate scar-related intra-atrial reentrant tachycardia in patients with previous open-heart surgery?
Case Report (n=2)
Does transection of the corridor between the crista terminalis and the incision scar eliminate scar-related intra-atrial reentrant tachycardia in patients with previous open-heart surgery?
Transection of the corridor between the crista terminalis and the incision scar is an effective second-line ablation strategy for scar-related intra-atrial reentrant tachycardia after open-heart surgery.
Answers are grounded in this paper and cite their sources.
May serve as bailout strategy after failed ablation; hypothesis-generating in this case series and requires larger studies.
We present case reports of 2 patients with scar‐related intra‐atrial reentrant tachycardia (IART) associated with previous open‐heart surgeries, in which standard ablation strategies failed to eliminate atrial tachycardia (AT). The strategies targeted a narrow conducting channel between the right atrial scars or between the scar and inferior vena cava. In these patients, an alternative approach to transect another narrow conducting pathway between the scar and crista terminalis (CT), which was revealed by a noncontact mapping system, successfully terminated and eliminated the IART. Both the cases were free of recurrent AT at the 24‐and 25‐month follow up visits, respectively. Transection of the corridor between the CT and the incision scar appears to be an effective technique for eliminating scar‐related IART and can be considered as a second‐line procedure for radiofrequency catheter ablation to eliminate IART.
No takes yet. Share an insight, caveat, or question.
Narita et al. (2009) conducted a case report in Scar-related intra-atrial reentrant tachycardia (IART) associated with previous open-heart surgeries (n=2). Radiofrequency catheter ablation transecting the pathway between the scar and crista terminalis vs. Standard ablation strategies was evaluated on Termination and elimination of IART. Radiofrequency catheter ablation transecting the pathway between the scar and crista terminalis successfully eliminated IART in 2 patients with failed standard ablation.
Synapse has enriched 10 related papers. Consider them for comparative context: