Effendy F N, Bolognesi R, Bianchi G, Visioli O
J Electrocardiol. 1979 Jan;12(1):121-7. doi: 10.1016/s0022-0736(79)80055-2.
A forty-five year old man with longstanding rheumatic heart disease whose surface electrocardiogram (ECG) showed absent P waves and two alternating QRS complex rhythms, one regular and the other irregular, was submitted to electrophysiological studies. For regular QRS complex rhythm these studies revealed (1) presence of total and bilateral atrial standstill and (2) regular ventricular rhythm originating in the A-V junction; while for irregular QRS complex rhythm the studies showed (1) presence of atrial standstill in the area of the upper right atrium, and (2) a +/- 150/min atrial activity rate in the intracavitary and esophageal electrogram and a +/- 300/min rate in the epicardial mapping. The spread of conduction of this atrial activity indicates that it originated within an atrial area near the tricuspid valve. The presence of an alternating partial and total atrial standstill is a unique feature which to data has not been reported in the literature.
一名患有长期风湿性心脏病的45岁男性，其体表心电图（ECG）显示P波消失，QRS复合波节律有两种交替形式，一种规则，另一种不规则，该患者接受了电生理研究。对于规则的QRS复合波节律，这些研究显示：（1）存在完全性双侧心房静止；（2）规则的心室节律起源于房室交界区；而对于不规则的QRS复合波节律，研究表明：（1）右上心房区域存在心房静止；（2）心腔内和食管心电图显示心房活动频率为+/-150次/分钟，心外膜标测显示频率为+/-300次/分钟。这种心房活动的传导扩散表明其起源于三尖瓣附近的心房区域。交替出现部分性和完全性心房静止是一个独特的特征，迄今为止文献中尚未报道过。
