摘要
紧急床旁心脏起搏术是抢救严重缓慢型心律失常和心脏骤停最有效的办法。漂浮导管行床旁心脏临时起搏方便、快捷,无需大型X线设备,适用于基层医院。在无X线情况下,正确识别右侧心腔内不同部位的心电图特点对于床旁起搏技术至关重要。右心室起搏主要有两个部位,即右室心尖部和右室流出道。右室心尖部心电图特点:左束支阻滞图形,电轴左偏,II、III、aVF导联QRS主波向下,V5、V6导联QRS主波向下或向上;右室流出道心电图特点:左束支阻滞图形,电轴右偏,II、III、aVF导联QRS主波向上。
Emergent bedside cardiac pacing is the most efficient to rescue the patients with severe and heart arrest. For bedside temporary cardiac pacing,application of floating catheter is convenient because of unnecessary use of X- ray equipments,suitable for basic- level hospitals. Distinguishing pacing site in right ventricle based on ECG characteristics becomes crucial. Right ventricular pacing has two main target parts：the right ventricular apex and the right ventricular outflow tract.Right ventricular apex ECG features：left bundle branch block morphology,left cardiac axis,downward QRS wave on leads II,III and aVF,upward or downward QRS wave on leads V5,V6. Right ventricular outflow tract ECG features：left bundle branch block morphology,right cardiac axis,upward QRS wave on leads II,III and aVF.
出处
《创伤与急危重病医学》
2014年第4期204-206,236,共4页
Trauma and Critical Care Medicine
关键词
漂浮导管
心电图定位
心律失常
floating catheter
Electrocardiogram（ECG） positioning
bradycardia
