Abstract
BackgroundRadial artery catheterization is a challenge for anesthetists in the pediatric population. The purpose of this study was to determine whether the modified long-axis in-plane (MLAX-IP) technique increased the success rate of radial artery catheterization in children.MethodsThis study involved 80 children who required arterial catheterization and were randomly divided into the MLAX-IP group and dynamic needle tip positioning (DNTP) group (40 cases in each group). Radial artery catheterization was performed using either the MLAX-IP technique or the DNTP technique.ResultsThe first-attempt cannulation success rate was higher in the MLAX-IP group than in the DNTP group (95 vs. 80%, P = 0.043). The imaging time of the artery in the MLAX-IP group was longer than in the DNTP group (19.1 ± 3.1 vs. 9.6 ± 2.4 s, P < 0.001). While the total catheterization time was similar between the 2 groups (88.1 ± 23 vs. 86.9 ± 46.1 s, P = 0.475).ConclusionThe first-attempt cannulation success rate with the MLAX-IP technique is increased, while the total catheterization time is similar between the 2 groups and puncture-related complications are fewer.
Highlights
Arterial cannulation was usually used for real-time hemodynamic monitoring in major surgery [1]
The first-attempt cannulation success rate was higher in the modified long-axis in-plane (MLAX-IP) group than in the dynamic needle tip positioning (DNTP) group (95 vs. 80%, P = 0.043)
The first-attempt cannulation success rate with the MLAX-IP technique is increased, while the total catheterization time is similar between the 2 groups and puncture-related complications are fewer
Summary
Arterial cannulation was usually used for real-time hemodynamic monitoring in major surgery [1]. Radial artery catheterization is a challenge for anesthetists due to the smaller diameter of the vessel [2, 3]. Even for the skilled operators, it may cause vasospasm or hematoma at multiple attempts, significantly reducing the success rate of cannulation [4]. The common techniques of ultrasound (US)-guided vascular catheterization include short-axis, out of a plane (SAX-OOP), long-axis, in-plane (LAX-IP), and dynamic needle tip positioning (DNTP) techniques [5, 6]. The first-attempt cannulation success rate was higher, cannulation time was longer and incidence of puncture-related complications was decreased using the LAX-IP approach compared with the SAX-OOP approach [7]. Radial artery catheterization is a challenge for anesthetists in the pediatric population. The purpose of this study was to determine whether the modified long-axis in-plane (MLAX-IP) technique increased the success rate of radial artery catheterization in children
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