论文部分内容阅读
附图为本刊上期《思考心电图之1》II导联和同步记录的食管导联(E)。乍看常规II导联P-P间隔有长、短两种,其中P_2、5、10、12分别与前-P波构成短P-P间隔。若以长P-P间隔作为基本窦性周期分析,则P_2、5、10、12为提前出现,而且这些P波与窦性P波形态不一,所以很易诊断为房性早搏,其下传之QRS略有畸形,为轻度室内差异传导。但进一步分析,此房早的逆配对间期(即房早P’到下一个窦性P波的距离)与长P-P间隔完全相等,此点与一般房早规律不符,而其配对问期(即短P-P间隔)正好是长P-P间隔的
The figure is the issue of “Thinking about ECG 1” II lead and simultaneous recording of esophageal lead (E). At first glance, there are two long and short P-P intervals in conventional II lead, in which P_2, 5, 10 and 12 respectively form a short P-P interval with the pre-P wave. If the long PP interval as a basic sinus cycle analysis, then P_2,5,10,12 for the early appearance, and these P wave and sinus P wave morphological differences, it is easy to diagnose atrial premature beats, and its downlink QRS slightly deformity, for differential indoor conduction. However, further analysis, this room early reverse matching interval (Pang early P ’to the next sinus P wave distance) and long PP interval exactly equal to this point with the general pattern of premature, but the matching question ( Ie short PP interval) happens to be long PP intervals