Stellbrink C, Haltern G, Schauerte P, Hanrath P
Medizinische Klinik I, RWTH Aachen.
Z Kardiol. 1995 Mar;84(3):232-6.
The Mahaim syndrome is a rare variant of accessory pathways. Typically, a normal surface ECG and paroxysmal tachycardias with left bundle branch block morphology are found. The anatomic correlate is an atrioventricular or atriofascicular fiber with decremental conduction properties. Criteria for intracardiac mapping of the atrial insertion of such a fiber include: 1) maximal preexcitation and a short stimulus-QRS interval with differential pacing from the atrial aspect of the tricuspid annulus, and 2) recording of an accessory pathway potential ("M" potential). We report a case of a patient that underwent successful radiofrequency ablation of a Mahaim fiber at the tricuspid annulus.
Mahaim综合征是一种罕见的附加旁路变异型。典型表现为体表心电图正常，伴有左束支阻滞形态的阵发性心动过速。其解剖学关联是一条具有递减传导特性的房室或房束纤维。这种纤维心房插入部位的心内标测标准包括：1）从三尖瓣环心房侧进行差异性起搏时，预激最大且刺激- QRS间期短；2）记录到一条附加旁路电位（“M”电位）。我们报告一例患者，其在三尖瓣环成功进行了Mahaim纤维的射频消融。
