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临床资料患者男性,58岁。临床诊断:冠心病。上行系Ⅱ导联,下行系Ⅰ、Ⅱ、Ⅲ、aVL、aVF、V_1、V_5导联的记录。图中窦性心搏的QRS波群宽大畸形,呈完全性右束支传导阻滞型。相随窦性心搏之后0.52s处,均可见提前出现的形态、时间正常的QRS波群。继之上行在较长的代偿间歇中可见一未下传的窦性P波。从而形成室性早搏二联律。讨论本图为窭性心搏与异位心搏形成二联律。但窦性心搏的QRS波群呈完全性左束支传导组阻滞型,而异位早搏的QRS波群却呈室上型,
Clinical data Male patient, 58 years old. Clinical diagnosis: coronary heart disease. Uplink II lead, down the line Ⅰ, Ⅱ, Ⅲ, aVL, aVF, V_1, V_5 lead record. The QRS complex sinus abnormalities wide deformity, showed complete right bundle branch block. At 0.52s after sinus beats, both QRS complex with normal morphology and time appeared. Followed by the upstream compensatory in the longer compensatory interval can be seen in an undisrupted sinus P wave. Thus the formation of ventricular premature beats law. Discussion This picture shows the 二 heart beats and ectopic beats formation bigeminy. However, QRS complex sinusoidal heartbeat was completely left bundle branch block type, and ectopic premature QRS complex was supratentorial,