Objective To discuss the influence of preexcitation syndrome on the frontal QRS axis and horizontal transitional zone. 目的探讨预激综合征对额面QRS电轴和横面移行区的影响。
Objective To investigate the age trend of the frontal QRS axis in a normal population and its effect on QRS-wave amplitude in the limb leads. 目的调查和评估正常人额面QRS电轴的年龄趋势以及对肢体导联QRS波振幅的影响。
Effects of Balloon Inflation to Implantation Stent on QRS Duration and Frontal Plane QRS Axis During Percutaneous Coronary Intervention PCI时球囊扩张释放支架对QRS宽度和额面电轴的影响
【 Methods 】 QRS duration and frontal plane QRS axis were measured before and after balloon inflation to implantation stent in 130 patients with coronary artery disease during percutaneous coronary intervention. 【方法】130例冠心病患者,观察球囊扩张释放支架前后QRS时限及QRS额面电轴的变化。
Conclusions: The frontal flaps should be designed along the axis of supratrochelear vessels, so the whole nasal defect can be repaired by bilateral frontal flaps simultaneously; 结论:额部皮瓣应设计在旁正中的滑车上动脉血管走行轴线上;可同时用两侧额部皮瓣行全鼻缺损的修复;
Conclusion QRS prolongation and frontal plane QRS axis deviation after contrast medium injection may be a marker of myocardial ischemia. 结论注射造影剂后QRS时间延长及QRS额面电轴的变化可能是急性心肌缺血的标志。
These QRS-wave changes in the limb leads were concomitant with a frontal QRS axis shift to the left with age. 肢体导联R波振幅随年龄的变化趋势与额面QRS电轴的年龄趋势相一致。
Methods QRS duration and frontal plane QRS axis were measured before and after injection of contrast medium in 34 patients with left coronary artery disease identified by coronary angiography. 方法观察34例经冠状动脉造影确诊为左冠状动脉狭窄而右冠状动脉无病变的冠心病患者,注射造影剂前后QRS时间和额面电轴的变化。