Demonstrates the successful use of radiofrequency linear ablation at the cavotricuspid isthmus to eliminate lower loop reentrant atrial tachycardia occurring late after surgical division of right-sided accessory pathways.
Answers are grounded in this paper and cite their sources.
CTI ablation may be considered for post-surgical lower loop reentry; extends sparse case evidence but leaves generalizability open.
A 50‐year‐old man developed a symptomatic tachyarrhythmia 22 years after surgical division of multiple right‐sided accessory pathways. Electro‐anatomical mapping during sinus rhythm revealed an electrically isolated ectopic focus on the right atrial free wall near the tricuspid annulus (TA). Activation map during tachycardia indicated the presence of lower loop reentry (LLR) with collision of the wavefronts in the high right atrium. The isthmus of slow conduction was located between the surgical incision near the posterior TA and the inferior vena cava. LLR was eliminated by radiofrequency linear ablation at the cavotricuspid isthmus.
No takes yet. Share an insight, caveat, or question.
Oginosawa et al. (2011) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: