Accessory pathways with slow and anterograde decremental conduction (Mahaim fibres) are responsible for a minority of atrioventricular reentrant tachycardias. While usually located along the tricuspid annulus, left-sided Mahaim fibres have been occasionally reported. We here report on a unique case of radiofrequency catheter ablation of a Mahaim pathway located at the supero-septal aspect of the mitral annulus, in a region known as mitral annulus– aorta junction, between the right and left fibrous trigons. Electrophysiological properties and embryological implica- tions of this unusual accessory pathway are discussed.
Electrophysiological study and catheter ablation of a Mahaim fibre located at the mitral annulus-aorta junction / Francia, Pietro; Pittalis, Mc; Ali, H; Cappato, R.. - In: JOURNAL OF INTERVENTIONAL CARDIAC ELECTROPHYSIOLOGY. - ISSN 1383-875X. - STAMPA. - 23:2(2008), pp. 153-157. [10.1007/s10840-008-9279-1]
Electrophysiological study and catheter ablation of a Mahaim fibre located at the mitral annulus-aorta junction
FRANCIA, Pietro;
2008
Abstract
Accessory pathways with slow and anterograde decremental conduction (Mahaim fibres) are responsible for a minority of atrioventricular reentrant tachycardias. While usually located along the tricuspid annulus, left-sided Mahaim fibres have been occasionally reported. We here report on a unique case of radiofrequency catheter ablation of a Mahaim pathway located at the supero-septal aspect of the mitral annulus, in a region known as mitral annulus– aorta junction, between the right and left fibrous trigons. Electrophysiological properties and embryological implica- tions of this unusual accessory pathway are discussed.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.