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 implications of this unusual accessory pathway are discussed.
Original language | English |
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Pages (from-to) | 153-157 |
Number of pages | 5 |
Journal | Journal of Interventional Cardiac Electrophysiology |
Volume | 23 |
Issue number | 2 |
DOIs | |
Publication status | Published - Nov 2008 |
Keywords
- Accessory pathway
- Catheter ablation
- Decremental conduction
- Mahaim
- Mitral annulus-aorta junction
ASJC Scopus subject areas
- Cardiology and Cardiovascular Medicine
- Physiology (medical)