To explore the application and effect of bedside color Doppler ultrasound in difficult internal jugular vein catheterization in critical patients.

We conducted a retrospective analysis of 116 patients with deep jugular vein catheterization in emergency department of the Affiliated Suqian Hospital of Xuzhou Medical University from September 2017 to March 2019, including 60 males and 56 females, aged from 13 to 83 years, with an average age of (44.5±6.8) years, including 57 patients in color ultrasound localization group and 59 patients in traditional body surface anatomy localization group. The catheterization time, catheterization success rate, number of wrong arteries, local hematoma and pneumothorax of the two groups were statistically analyzed.

The time of color Doppler localization group was 5.32 minutes, the success rate of primary catheterization was 100%, the number of wrong catheterization was 0, and the local hematoma was 0. The time of traditional body surface anatomy group was 11.13 min., the success rate of primary catheterization was 74.6% (44 cases), and the success rate of secondary catheterization was 86.4% (51 cases). The success rate of secondary catheterization was once after the failure of conversion to CDFI. Local hematoma was found in 9 patients.

Bedside color Doppler ultrasound localization in critical internal jugular vein catheterization has the advantages of short time, high success rate, low complications, meeting the needs of emergency treatment, and good application effect, especially for critical patients with unclear local anatomical location. It is easier to understand and master in intern teaching and junior doctors' training and it therefore can be widely used.