Radial arterial function following percutaneous cannulation with 18- and 20-gauge catheters

Radial arterial function was evaluated in 108 patients following 24 hours of percutaneous cannulation with either 18- or 20-gauge cannulas. Arteriography, Doppler ultrasound examination, and Allen's test disclosed an 8 per cent incidence of radial-artery occlusion following cannulation with 20-...

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Bibliographic Details
Published in:Anesthesiology (Philadelphia) 1977-07, Vol.47 (1), p.37-39
Main Author: Bedford, R F
Format: Article
Language:English
Subjects:
Angiography
Arterial Occlusive Diseases - diagnosis
Arterial Occlusive Diseases - etiology
Arteries
Catheterization - adverse effects
Catheterization - instrumentation
Forearm - blood supply
Humans
Monitoring, Physiologic - instrumentation
Ultrasonography
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Summary:Radial arterial function was evaluated in 108 patients following 24 hours of percutaneous cannulation with either 18- or 20-gauge cannulas. Arteriography, Doppler ultrasound examination, and Allen's test disclosed an 8 per cent incidence of radial-artery occlusion following cannulation with 20-gauge cannulas, compared with a 34 per cent incidence of occlusion with 18-gauge cannulas (P less than .05). Vessels that occluded were significantly smaller in diameter than were patent vessels (mean 2.00 +/- .09 mm SE vs. 2.22 +/- .05 mm, P less than .05). Occluded vessels also contained significantly greater amounts of thrombotic material (0-3+) just prior to decannulation than those that remained patent (2.42 +/- .13 vs. 1.20 +/- .11,P less than .001). The incidence of arterial occlusion increases linearly as the ratio of cannula outer diameter to vessel-lumen diameter increases.
ISSN:0003-3022
DOI:10.1097/00000542-197707000-00009