摘要
目的探讨V1检测电极的部位与起搏心电图形态的关系。方法选取植入永久性人工起搏器患者24例，将V1检测电极分别置于胸骨右缘第2、3、4、5肋间记录3导联同步心电图。分别测量V1QRS形态及时间。结果不同部位V1 QRS时间无明显差异（P〉0.05）。随着检测电极位置由胸骨右缘第5肋间移向第2肋间，V1R波电压逐渐增加，S波电压逐渐减小。电极位于胸骨右缘第5肋间者95.8％呈左束支传导阻滞型，位于胸骨右缘第3肋间者54.2％呈右束支传导阻滞型，位于胸骨右缘第2肋间者75．0％呈右束支传导阻滞型。胸骨右缘第4、5肋间以S型（QS、rS型）为主（95.8％），胸骨右缘第2肋间R型（Rs型）为主（75．0％），两者差异有统计学意义（P〈0．05）。结论调整V1检测电极的位置可快捷简便地判断心室起搏电极是否位于右心室，对判断有无心室电极穿孔有一定指导作用。
Objective To assess electrocardiographic pattern of cardiac pacing with lead V1 at different intercostal spaces. Methods Electrocardiogram（ECG） was recorded with lead V1 at the 2rid, 3rd, fourth and fifth intercostal spaces, respectively, in 24 patients underwent pacemaker implantation. The ECG pattern and duration of QRS complex were measured. Results The amplitude of R wave increased and S wave decreased gradually with no change in duration of QRS complex when lead V1 was shifted from the fifth to the 2nd intercostal space. Left bundle branch block pattern was seen in 95.8% ECG recorded at the fifth intercostal space and right bundle branch block pattern in 54.2% ECG recorded at the 3rd intercostal space and in 75% ECG recorded at the 2nd intercostal space. Conclusion The ECG recorded with lead V1 at different intercostal spaces may be used to estimate right ventricular lead Position.
出处
《心电学杂志》
2010年第5期404-405,410,共3页
Journal of Electrocardiology(China)
关键词
心脏起搏
心电图
V1电极
Cardiac pacing
Electrocardiogram
Lead V1
