To explore the value of ultrasound guided combined intracavitary electrocardiography in central venous catheterization.

Retrospective analysis the clinical data of 52 patients underwent ultrasound guided central venous catheterization combined intracavitary electrocardiography location from January 2016 to June 2017. The first puncture success rate, catheter arrival rate and complications were observed.

A total of 50 cases were successfully punctured for the first time, and the first puncture success rate was 96.2%. And two cases needed two punctures for the first puncture failed. No complications such as carotid artery penetration, hemopneumothorax and air embolism occurred during the operation. All patients underwent chest X-ray examination to confirme that the catheter tip was in an ideal position. All the depth of catheterization reached the best postion at one time. Two patients had arrhythmia during operation and were treated promptly.

Ultrasound-guided internal jugular vein puncture can determine the presence or absence of vascular variability, accurately guide the puncture, reduce complications, and improve the success rate of catheterization. The intracavity electrocardiogram can prompt the catheter depth in real time, which helps to adjust the position of the catheter tip in time.