Comparison of short-axis out-of-plane vs. long-axis in-plane ultrasound-guided radial artery cannulation: a randomized controlled trial

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Randomized controlled trial shows different outcomes for short-axis out-of-plane and long-axis in-plane techniques in radial artery cannulation.

The first-attempt success rate for the short-axis out-of-plane technique was 92.5%, higher than the long-axis in-plane rate of 80%.
Localization time was significantly quicker for short-axis out-of-plane at 2.33 seconds compared to 4.50 seconds for long-axis in-plane.
Cannulation times were shorter with short-axis out-of-plane at an average of 30.28 seconds compared to 45.18 seconds for long-axis in-plane.
Both techniques are effective; however, short-axis out-of-plane shows advantages in speed and first-attempt success.

Sunam et al. (2025) studied this question.

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View Full Paper

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Authors

Randomized controlled trial shows different outcomes for short-axis out-of-plane and long-axis in-plane techniques in radial artery cannulation.

The first-attempt success rate for the short-axis out-of-plane technique was 92.5%, higher than the long-axis in-plane rate of 80%.
Localization time was significantly quicker for short-axis out-of-plane at 2.33 seconds compared to 4.50 seconds for long-axis in-plane.
Cannulation times were shorter with short-axis out-of-plane at an average of 30.28 seconds compared to 45.18 seconds for long-axis in-plane.
Both techniques are effective; however, short-axis out-of-plane shows advantages in speed and first-attempt success.

Sunam et al. (2025) studied this question.

View Full Paper

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