论文部分内容阅读
左前半支传导阻滞是指额面QRS平均向量(AQRS)明显左偏至-45°～90°,同时I及aVL中有小Q波,其根据是当前半支阻断后,使QRS向量移向左上,其起始0.02秒向右下,使I或/及avL中出现小Q波。本文旨在通过3983例无缺血性心脏病男性(年龄大多在26一34岁)的随访,以明确:(1)其发生是否一定是由于AQRS移向左上;(2)是否伴有起始QRS向量变化;(3)是否必需在I及aVL中有小Q波;(4)以后是否容易发生其他传导阻滞。方法:
Left anterior branch block refers to the frontal QRS average vector (AQRS) was significantly left-offset to -45 ° ~ 90 °, while I and aVL in a small Q wave, based on the current half-block after blocking the QRS vector Moves to the top left, starting 0.02 seconds to the right, causing a small Q wave in I and / or avL. The aim of this study was to determine whether 3983 ischemic heart disease men (mostly aged 26-34 years) were followed up to determine if: (1) their occurrence must have been due to AQRS shifting to the left; (2) QRS vector changes; (3) whether there is a need for a small Q wave in I and aVL; (4) whether other blockages are likely to occur later. method: