Mendoza I J, Castellanos A, Lopera G, Moleiro F, Mitrani R D, Myerburg R J
Universidad Central de Venezuela, Caracas.
Am J Cardiol. 2000 Apr 1;85(7):893-6, A9. doi: 10.1016/s0002-9149(99)00890-5.
A subgroup of patients with neurocardiogenic syncope and negative electrophysiologic studies and adenosine tests (in 5 of 6 cases), who developed symptomatic paroxysmal atrioventricular block in the natural, ambulatory state, had positive tilt tests without advanced block. Lack of concordance between electrocardiographic changes may have reflected differential effects of the autonomic nervous system in the sinus and atrioventricular nodes, occurring in diverse circumstances and less likely because of the protocol used for tilt testing.
一组神经心源性晕厥患者，其电生理检查和腺苷试验结果为阴性（6例中有5例），在自然动态状态下出现有症状的阵发性房室传导阻滞，其倾斜试验结果为阳性且无高度房室传导阻滞。心电图变化缺乏一致性，可能反映了自主神经系统在窦房结和房室结的不同作用，这发生在不同情况下，且不太可能是由于倾斜试验所采用的方案导致的。
