Dissociation of right and left AV conduction: What is the mechanism?
نویسندگان
چکیده
observed that the sinus wave reached the AV node with a Introduction Atrioventricular septal defect (AVSD) can be associated with supraventricular arrhythmias and atrial fibrillation (AF). The position of the conduction system differs from the normal heart: the atrioventricular (AV) node is more posterior and inferior compared with the normal position in the triangle of Koch, in close relation with coronary sinus (CS) ostium. We present a case of AF and atrioventricular nodal reentrant tachycardia (typical AVNRT) in a 43-yearold patient with a repaired AVSD, with a dissociation of the right atrium (RA) from the left atrium (LA) and coexistent sinus rhythm with junctional escape and typical AVNRT alternated, after ablation of the Bachmann bundle (BB).
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