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据认为,Maliaim 纤维的两种类型结室型纤维和分支心室型纤维(FVF)与某些室性预激有关。FVF 源于希氏束及其分支。直接进入心室肌,可引起 QRS 综合波轻度变形。室性预激程度取决于希-浦系统与 FVF 的相对传导时间。本文描述 FVF对 I_A 类抗心律失常药物反应的心电图和电生理特性。4例有 FVF 的患者,男女各2例,年龄20-59岁。有心悸2例,晕厥1例,胸痛1例。2例有间歇性室性预激,3例曾有阵发性房颤,1例有文氏型房室传导阻滞(AVB)。在清醒、空腹
It is believed that the two types of conjunctival fibers and branched ventricular fibers (FVFs) of Maliaim fibers are associated with certain preconditioning. FVF from His bundle and its branches. Directly into the ventricular muscle, can cause mild QRS complex deformation. The degree of ventricular preconditioning depends on the relative conduction time of the Xi-Pu system and the FVF. This article describes the electrocardiographic and electrophysiological properties of FVF responses to type I_A antiarrhythmic drugs. Four patients had FVF, two men and women each, aged 20-59 years. There are palpitations in 2 cases, 1 case of syncope, 1 case of chest pain. Two patients had intermittent prefrontal stimulation, three had paroxysmal atrial fibrillation, and one had Ventrovarus atrioventricular block (AVB). In awake, fasting