Case Report (n=1)
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Arrhythmogenic obstacles can change as a patient grows long after congenital heart disease surgery, creating new substrates for intraatrial reentrant tachycardia.
An intraatrial reentrant circuit was identified using an electroanatomical mapping system and evaluation of postpacing intervals in a patient with isomerism of the left atrial appendages and atrioventricular septal defect. Intraatrial reentrant tachycardia was eliminated on the basis of our interpretation of the reentry circuit being dependent on a new anatomical obstacle consisting of a right-sided atrioventricular annulus and atrial septation patch. We must consider the possibility of arrhythmogenic obstacles changing, as a patient grows, long after congenital heart disease surgery.
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Sakaguchi et al. (2012) conducted a case report in Isomerism of the left atrial appendages and atrioventricular septal defect with intraatrial reentrant tachycardia (n=1). Electroanatomical mapping and ablation was evaluated on Elimination of intraatrial reentrant tachycardia.
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