• Usama Elsayed Mohammed Abdalla, Alaa Elmaadawey, and AlRefaey Kandeel.
• Lecturer of Anesthesia and Surgical Intensive Care, Mansoura University, Egypt. Electronic address: usamaelsayed20@yahoo.com.
• J Clin Anesth. 2017 Feb 1; 36: 98-101.

Study ObjectiveTo investigate the value of using a new technique for ultrasound-guided radial artery catheterization; oblique approach; vs transverse and longitudinal views are the traditionally used approaches aiming to combine benefits and avoid drawbacks of aforementioned approaches.DesignA prospective randomized nonblinded study.SettingGastroenterology Center, Mansoura University, Egypt from February 2015 to August 2015.PatientsOne hundred twenty-six surgical and intensive care unit patients indicated for arterial catheterization.InterventionPatients were randomly allocated into 3 groups according to the US-guided technique used; group T (n=42) using transverse view, group L (n=42) using longitudinal view, group O (n=42) using oblique view.MeasurementsPrimary objective was overall success rate; secondary objectives were first attempt success, time to cannulate, and operator satisfaction with the used technique.Main ResultsForty-two patients were included for each study group. Overall success rate of radial artery catheterization was significantly higher in group O than in group T and clinically higher than group L (60% for group T, 70% for group L, 90% for group O; P<.02). Likewise, time needed to cannulate the radial artery was significantly lower in group O than in both group T and group L (28±19 s for group T, 66±5 s for group L, 16±7 s for group O; P<.00].ConclusionThese results support the conclusion that the oblique approach for US-guided radial artery catheterization may replace the 2 classic approaches owing to its superior success rate, higher first attempt success and shorter time consumed for catheterization with more operator satisfaction after the procedure.Copyright © 2016 Elsevier Inc. All rights reserved.

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