Mahaim accessory pathway has generally been regarded as an accessorypathway which originates from the atrioventricular node and is inserted at,or adjacent to the right bundle branch or ventricle.Recently.severalreport...Mahaim accessory pathway has generally been regarded as an accessorypathway which originates from the atrioventricular node and is inserted at,or adjacent to the right bundle branch or ventricle.Recently.severalreportes have demonstrated that these pathways originate from the atrialfree wall distant from the atrioventriculer node.Electrophysiologicalcharacteristics of Mahaim fiber have also been investigated particularlyconcerning its decremental property by examining electrophysiologicalbehavior of the so-called Mahaim potential.We also tried.to delineate thefanctional and anatomical characteristics along the Mahaim fiber with thedetailed electrophysiological study.In my presentation 1 would like todemonstrate that there is electrophysiological evidence Of functionallongitudinal dissociation or supernormality in the Mahaim fiberextrapolated from the discontinuity or the resumption of the antegradeconduction over the Mahaim fiber.1 also demonstrate the exact procedureto eliminate conduction over the Mahaim pathways using radiofrequanencycatheter ablation targeted at the tricuspid annulus.An inter esting case,which under wenr catheter ablation for its wide QRS complex tachycardiaassciated with Mahaim pathway,will be presented for your reference.展开更多
文摘Mahaim accessory pathway has generally been regarded as an accessorypathway which originates from the atrioventricular node and is inserted at,or adjacent to the right bundle branch or ventricle.Recently.severalreportes have demonstrated that these pathways originate from the atrialfree wall distant from the atrioventriculer node.Electrophysiologicalcharacteristics of Mahaim fiber have also been investigated particularlyconcerning its decremental property by examining electrophysiologicalbehavior of the so-called Mahaim potential.We also tried.to delineate thefanctional and anatomical characteristics along the Mahaim fiber with thedetailed electrophysiological study.In my presentation 1 would like todemonstrate that there is electrophysiological evidence Of functionallongitudinal dissociation or supernormality in the Mahaim fiberextrapolated from the discontinuity or the resumption of the antegradeconduction over the Mahaim fiber.1 also demonstrate the exact procedureto eliminate conduction over the Mahaim pathways using radiofrequanencycatheter ablation targeted at the tricuspid annulus.An inter esting case,which under wenr catheter ablation for its wide QRS complex tachycardiaassciated with Mahaim pathway,will be presented for your reference.
