心内心电图定位技术在PlCC导管头端定位的应用

INTRACARDIAC ELECTROCARDIOGRAM( ECG) POSITIONING TECHNOLOGY APPLICATION RESEARCH OF PLCC CATHETER TIP TO POSITIONING

目的探讨心内心电图定位技术在PICC导管头端定位的临床应用效果。方法选取我科2013年10月~2014年12月收治的115例置入PICC患者作为研究对象,所有患者均按统一的程序完成置管,并在置管过程中运用心内心电图定位技术对PICC导管头端定位,置管后再次行X线拍片定位。结果心内心电图对PICC头端进入上腔静脉的灵敏度为93.03%,108例患者出现特征性P波,7例无P波变化;X线片显示108例导管头端位于上腔静脉内,2例在锁骨下静脉内（2例静脉走向打圈,导致导管在静脉内打圈长度不足,未到达上腔静脉）,2例在颈静脉内,3例在肱静脉内。结论对PICC导管头端定位采取心内心电图定位技术,具有较高的灵敏度与特异度,可临床推广应用。

Objective The intracardiac electrocardiogram（ ecg） positioning technology in the clinical application of PICC catheter tip to locate effect were discussed. Methods 115 cases of our department in October 2013- 2014 December PICC placement of patients admitted to the study. All patients completed according to uniform procedures catheter,and the use of intracardiac electrocardiogram positioning technology in the catheterization process PICC catheter tip positioning,again catheter positioning X- ray film. Results Intracardiac electrocardiogram PICC tip into the superior vena cava sensitivity of 93. 03%,and the situation is a total of seven cases no P wave changes,the rest of the patient P or T wave changes. X- ray showed 108 cases of catheter tip is located on the within the vena cava,and two cases in the subclavian vein（ intravenously to two cases of circular motion,resulting in a circular motion intravenous catheter insufficient length,which does not reach the superior vena cava）,and two cases in the internal jugular vein,three cases in the brachial vein. Conclusion PICC catheter tip positioning taking intracardiac electrocardiogram positioning technology,with high sensitivity and specificity,which can be clinical application.