• Bing Bai, Yuan Tian, Yue Lun Zhang, Chun Hua Yu, and Yu Guang Huang.
• Department of Anesthesiology, PUMC Hospital,CAMS and PUMC,Beijing 100730,China.
• Zhongguo Yi Xue Ke Xue Yuan Xue Bao. 2020 Feb 28; 42 (1): 86-90.

AbstractObjective To identify the possible factors that may influence the success and the complications of ultrasound-guided out-of-plane radial arterial cannulation. Methods Multivariate Logistic regression analysis was used to analyze the clinical data of 131 patients undergoing elective surgery and ultrasound-guided out-of-plane radial artery cannulation,dynamic needle tip positioning(DNTP) technique or angular distance(AD) technique and to find out the factors associated with the one-attempt success rate,overall success rate,posterior arterial wall perforation,and local hematoma. Results The depth of the anterior arterial wall≥3 mm was the factor associated with posterior arterial wall perforation(OR=0.314,95%CI:0.143-0.691,P=0.004) and local hematoma(OR=0.250,95%CI:0.107-0.585,P=0.001).The use of DNTP method was significantly associated with posterior arterial wall perforation(OR=0.303,95%CI:0.138-0.667,P=0.003). Conclusions During ultrasound-guided out-of-plane radial cannulation,puncture at the arterial anterior wall sites with a depth of≥3 mm can reduce the incidence of posterior arterial wall perforation and local hematoma.Compared with AD,DNTP can lower the incidence of posterior arterial wall perforation.

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