Key result
Noninvasive mapping accurately identifies scar-related microreentrant AT mechanism, matching invasive Carto mapping.
Why the study?
Arrhythmia mechanisms after pulmonary transplantation and the utility of noninvasive electrocardiographic mapping for procedure planning are not well characterized.
Does noninvasive electrocardiographic mapping predict tachycardia mechanism and origin in a patient with atrial tachycardia following pulmonary transplantation?
Case Report (n=1)
Does noninvasive electrocardiographic mapping predict tachycardia mechanism and origin in a patient with atrial tachycardia following pulmonary transplantation?
Noninvasive electrocardiographic mapping can accurately predict the mechanism and origin of atrial tachycardia following pulmonary transplantation, providing benefit for ablation procedure planning.
Answers are grounded in this paper and cite their sources.
May aid preprocedural planning in post-transplant atrial tachycardia; leaves open generalizability beyond this single case.
This is a case of atrial tachycardia 2 years after pulmonary transplantation. After excluding right atrial involvement, tachycardia origin was located in a scar region medial to the anastomosis of the left inferior pulmonary donor vein. Tachycardia mechanism was microreentry. Noninvasive electrocardiographic mapping performed before the ablation procedure matched with results of invasive Carto mapping and predicted both tachycardia mechanism and origin. We discuss arrhythmia mechanism found after pulmonary transplantation and benefit of noninvasive electrocardiographic mapping for procedure planning.
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Roten et al. (2012) conducted a case report in Atrial tachycardia following bilateral pulmonary transplantation (n=1). Noninvasive electrocardiographic mapping vs. Invasive Carto mapping was evaluated on Prediction of tachycardia mechanism and origin. Noninvasive electrocardiographic mapping successfully predicted the microreentry mechanism and origin of atrial tachycardia in a scar region, matching invasive Carto mapping results.
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