Pelov R, Popiliev I
Vutr Boles. 1987;26(1):48-54.
Some criteria, proposed for the diagnosis of auricle loading have been evaluated during the study of 210 healthy subjects--87 patients with left auricle loading (LAL) and 71 patients with right auricle loading (RAL). The total duration of P wave differentiates a smaller LAL than the duration of PII. The ratio of P duration to PP segment in V1 has a poor specificity. The phenomena interatrial conduction disorder with left auricular retrograde activation has a low sensitivity on EGC for LAL, and with the orthogonal EGC--low sensitivity and specificity. The ratio of duration to amplitude of PII has a restricted value. LAL and RAL differ significantly but they are very bad results in the stages of left auricular dilation. The various ways of evaluation of the electric axis (digital or in degrees) have their place in the multidirectional pathological deviations--LAL and RAL.
在对210名健康受试者、87名左心房负荷（LAL）患者和71名右心房负荷（RAL）患者的研究过程中，对一些提出用于诊断心房负荷的标准进行了评估。P波的总时长区分较小LAL的能力不如PII时长。V1导联中P波时长与PP段的比值特异性较差。左心房逆行激动时的房内传导障碍现象在心电图上对LAL的敏感性较低，而在正交心电图上则敏感性和特异性均较低。PII波的时长与振幅之比的价值有限。LAL和RAL有显著差异，但在左心房扩张阶段它们的诊断效果都很差。电轴评估的各种方法（数字或度数）在LAL和RAL等多方向病理偏差中都有其作用。
