Application value of ultrasound-guided whole-process visualization of radial artery puncture and catheterization in anesthesia of obese patients

ObjectiveTo evaluate the clinical effectiveness of ultrasound-guided whole-process visualization of radial artery puncture catheterization in anesthesia of obese patients.

MethodsOne hundred patients with body mass index ≥28 kg/m² through arterial puncture catheterization were randomly divided into the group L(n=50, radial arterial cannulation with whole-process visible ultrasound-guided long-axis in-plane technique) and group S(n=50, radial arterial cannulation with ultrasound-guided short-axis out-of-plane technique).The success rate at first-time attempt, puncture time, puncture times and puncture complications were compared between two groups.

ResultsThe success rate at first-time attempt in group L was significantly higher than that in group S(P < 0.05).In group S, 4 patients with hematoma at the puncture site were found, and the contralateral radial artery puncture were successful in all patients, no hematoma at the puncture site in group L was found, and the difference of which between two groups was statistically significant(P < 0.05).The differences of the puncture time, number of puncture and number of puncture needles between two groups were not statistically significant(P>0.05).

ConclusionsThe success rate of ultrasound-guided long-axis whole-process visualization of radial artery puncture and catheterizationis higher than that of ultrasound-guided short-axis out-of-plane technique.