[Nodo-ventricular accessory pathway unmasked by a block in the trunk of the bundle of His].
A case is reported in which, contrary to the unusual finding, conduction was slower in an accessory pathway than in the node-His pathway. Only when this latter became blocked (in the trunk of the bundle of His) following on the longest refractory period, was a pre-excitation syndrome unmasked related to the right nodo-ventricular fibres (the fibres of Mahaim).
D000255:Adenosine Triphosphate / Q000494:pharmacology; D000368:Aged; D002036:Bundle of His / Q000503:physiopathology; D002037:Bundle-Branch Block / Q000503:physiopathology*; D004562:Electrocardiography; D005260:Female; D006329:Heart Conduction System / Q000503:physiopathology*; D006801:Humans; D012849:Sinoatrial Node / Q000503:physiopathology*
D000255:Adenosine Triphosphate
Voie accessoire nodo-ventriculaire démasquée par un bloc dans le tronc du faisceau de His.