Leier C V, Jewell G M, Magorien R D, Wepsic R A, Schaal S F
Am J Cardiol. 1979 Sep;44(3):442-6. doi: 10.1016/0002-9149(79)90394-1.
Left atrial electrograms were recorded simultaneously from sites located in the coronary sinus, right pulmonary artery and esophagus in order to determine and correlate the interatrial conduction times obtained from these locations. Ten patients with normal-sized atria and 16 patients with isolated left atrial enlargement were studied. A high correlation existed between the P wave duration and the interatrial conduction times obtained from the coronary sinus and pulmonary artery; good correlations were also found for the interatrial conduction times recorded from the pulmonary artery and esophagus correlated well with those recorded from the distal coronary sinus (the generally accepted standard for the indirect interatrial conduction time measurements). In addition to providing information on the mechanism of atrial arrhythmias, the electrograms obtained from the various indirect left atrial recording sites provide satisfactory quantification of interatrial conduction.
同时记录位于冠状窦、右肺动脉和食管部位的左心房电图，以确定并关联从这些部位获得的心房传导时间。对10例心房大小正常的患者和16例孤立性左心房扩大的患者进行了研究。P波持续时间与从冠状窦和肺动脉获得的心房传导时间之间存在高度相关性；从肺动脉和食管记录的心房传导时间与从冠状窦远端记录的时间（间接心房传导时间测量的公认标准）也有良好的相关性。除了提供有关房性心律失常机制的信息外，从各个间接左心房记录部位获得的电图还能对心房传导进行令人满意的量化。
