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Updated: Jul 24, 2026

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State of the Art Cranial Ultrasound Imaging in Neonates
Published on: February 2, 2015
Radial artery cannulation in neonates: a new method.
1Karnatak Institute of Medical Sciences, Hubli, Karnataka, India. dr.devaraj@usa.net
Indian Journal of Pediatrics
|February 24, 2001
Summary
A simple technique enhances neonatal radial artery visibility by displacing interstitial fluid. This method simplifies arterial cannulation, making it as easy as venous procedures.
Area of Science:
- Neonatal Medicine
- Pediatric Surgery
- Vascular Access
Background:
- Arterial cannulation in neonates is challenging without advanced imaging.
- Accurate identification of the radial artery is crucial for successful cannulation.
Purpose of the Study:
- To describe a straightforward method for improving neonatal radial artery prominence.
- To facilitate easier and safer arterial cannulation in newborns.
Main Methods:
- The technique involves displacing perivascular interstitial fluid.
- This displacement makes the radial artery's path more visible.
Main Results:
- The radial artery becomes distinctly prominent under direct vision.
- Cannulation under direct vision is simplified, approaching the ease of venous cannulation.
Conclusions:
- This simple method significantly aids neonatal arterial cannulation.
- Improved visualization reduces procedure difficulty and enhances safety.
Related Concept Videos
Assessment of radial pulse
Assessment of Radial Pulse
The radial pulse, located at the wrist, is often the preferred site for assessing peripheral pulse because of its accessibility and dependability. The process of determining the radial pulse involves several steps:
The radial pulse, located at the wrist, is often the preferred site for assessing peripheral pulse because of its accessibility and dependability. The process of determining the radial pulse involves several steps:
Assessment of apical radial pulse
Apical-Radial (A-R) Pulse Assessment
The A-R pulse assessment involves simultaneous evaluation of the apical and radial pulses. When the apical and radial pulse rates vary, this assessment helps identify a pulse deficit.
Pre-Procedural Preparation
The A-R pulse assessment involves simultaneous evaluation of the apical and radial pulses. When the apical and radial pulse rates vary, this assessment helps identify a pulse deficit.
Pre-Procedural Preparation

