Seipel L, Breithardt G, Boecker K, Loogen F
Z Kardiol. 1981 Mar;70(3):181-7.
The electrophysiological findings in two cases with premature beats arising from the bundle of His are presented. In the first case, the nonconducted impulses led to a functional first and second degree A-V block of the following sinus beats due to retrograde concealed conduction. In addition, very early premature beats from the bundle of His were conducted retrogradely to the atrium simulating blocked premature atrial beats. In the second patient, the premature beats appeared as bigeminy after each sinus beat. As the sinus beats and the extrasystoles from the bundle of His showed a left bundle branch block pattern, a ventricular tachycardia was suspected from the findings in the surface ECG. The reported cases demonstrate the clinical value of the His bundle electrography in patients with bradycardic and tachycardic rhythm disturbances.
本文介绍了两例起源于希氏束的早搏的电生理研究结果。第一例中，未下传的冲动由于逆行性隐匿性传导导致随后窦性搏动出现功能性一度和二度房室阻滞。此外，起源于希氏束的极早期早搏逆行传导至心房，类似受阻的房性早搏。第二例患者，早搏呈每一个窦性搏动后出现的二联律。由于窦性搏动和起源于希氏束的期外收缩均呈现左束支传导阻滞图形，根据体表心电图表现怀疑为室性心动过速。所报道的病例证明了希氏束电图在心动过缓和心动过速性心律失常患者中的临床价值。
