Oblique approach for ultrasound-guided radial artery catheterization vs transverse and longitudinal approaches, a randomized trial.
OBJECTIVE
To 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.


METHODS
A prospective randomized nonblinded study.


METHODS
Gastroenterology Center, Mansoura University, Egypt from February 2015 to August 2015.


METHODS
One hundred twenty-six surgical and intensive care unit patients indicated for arterial catheterization.


METHODS
Patients 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.


METHODS
Primary objective was overall success rate; secondary objectives were first attempt success, time to cannulate, and operator satisfaction with the used technique.


RESULTS
Forty-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].


CONCLUSIONS
These 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.
Lecturer of Anesthesia and Surgical Intensive Care, Mansoura University, Egypt. Electronic address: usamaelsayed20@yahoo.com.
Usama Elsayed Mohammed
UE
Abdalla
Lecturer of Anesthesia and Surgical Intensive Care, Mansoura University, Egypt.
Alaa
A
Elmaadawey
Lecturer of Anesthesia and Surgical Intensive Care, Mansoura University, Egypt.
AlRefaey
A
Kandeel
D000328:Adult; D000368:Aged; D002406:Catheterization, Peripheral / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D017534:Radial Artery / Q000000981:diagnostic imaging*; D013997:Time Factors; D018615:Ultrasonography, Doppler, Color; D018084:Ultrasonography, Interventional / Q000379:methods*; D055815:Young Adult
Catheterization; Guidance; Radial; Ultrasound