Vergara I, Cambón A M, González R
Departamento de Enfermedades Cardiovasculares, Pontificia Universidad Católica de Chile, Santiago, Chile.
Rev Med Chil. 1997 Oct;125(10):1192-8.
Nodal reentrant supraventricular paroxysmal tachycardia corresponds to a reentry circuit established between fibers with different conduction velocities and refractory periods in the atrioventricular node. These are the slow and fast nodal pathways. That ventricular tissue does not form part of the circuit of this arrhythmia is accepted nowadays, and the involvement of atrial tissue is discussed. We report a 57 years old male with a nodal reentrant tachycardia. In the electrophysiological study he presented an atrial and ventricular dissociation during the tachycardia. These findings allow a better understanding of the electrophysiological substrate of this arrhythmia.
房室结折返性室上性阵发性心动过速对应于在房室结中具有不同传导速度和不应期的纤维之间建立的折返环。这些是慢径和快径。如今人们公认心室组织不构成这种心律失常折返环的一部分，并且心房组织的参与情况也存在争议。我们报告了一名57岁的男性房室结折返性心动过速患者。在电生理研究中，他在心动过速期间出现了房室分离。这些发现有助于更好地理解这种心律失常的电生理基质。
