| Mahaim fibres | Paraspecific fibre's originating from the A-V node, the His bundle, or the bundle branches and inserting into the ventricular myocardium; they are potential pathways for reentrant dysrhythmias. Synonym: nodoventricular fibres. (05 Mar 2000) |
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| pre-excitation, mahaim-type | A form of pre-excitation characterised by a normal pr interval and a long qrs interval with a delta wave. (12 Dec 1998) |