Back to Journals » Vascular Health and Risk Management » Volume 5

Histopathologic changes of the radial artery wall secondary to transradial catheterization

Authors Staniloae CS, Mody KP, Sanghvi K, Mindrescu C, Coppola JT, Antonescu CR, Shah S, Patel T

Published 23 June 2009 Volume 2009:5 Pages 527—532

DOI https://doi.org/10.2147/VHRM.S5468

Review by Single-blind

Peer reviewer comments 4


Cezar S Staniloae1, Kanika P Mody1, Kintur Sanghvi1, Catalin Mindrescu1, John T Coppola1, Cristina R Antonescu2, Sanjay Shah3, Tejas Patel3

1Saint Vincent’s Hospital Manhattan, New York, NY, USA; 2Memorial Sloan-Kettering Cancer Center, New York, NY; 3Total Cardio Vascular Solutions, Ahmedabad, India

Objective: The immediate effects of transradial access on the radial artery wall are unknown. In this study we sought to assess the histological changes induced by catheterization on the radial artery.

Methods: Thirty-four patients undergoing coronary artery bypass grafting (CABG) had radial arteries harvested to serve as bypass conduits. The proximal and distal ends of the radial artery conduits were sectioned and embedded in paraffin. Both ends of all specimens were evaluated by a blinded pathologist for intimal hyperplasia, medial inflammation, medial calcification, periarterial tissue or fat necrosis, adventitial inflammation, adventitial necrosis, and adventitial neovascularization. Fisher’s exact test was used for statistical analysis.

Results: Fifteen previously catheterized radial arteries (TRA group) were compared with 19 noncatheterized arteries (NCA group). The distal ends of the TRA group showed significantly more intimal hyperplasia (73.3% vs 21.1%; p = 0.03), periarterial tissue or fat necrosis (26% vs 0%; p = 0.02), and more adventitial inflammation (33.3% vs 0%; p = 0.01) than the distal ends of the NCA group. The distal ends of the TRA group also showed significantly more intimal hyperplasia (73.3% vs 26.6%; p = 0.03) and adventitial inflammation (33.3% vs 0%; p = 0.01) than the proximal ends of the same arteries. There were no histological differences in the proximal ends of the two groups.

Conclusion: Transradial catheterization induces significant histological changes suggestive of radial artery injury limited to the puncture site in the form of intimal hyperplasia, medial inflammation, and tissue necrosis. Both the proximal and distal ends of the radial artery show a spectrum of atherosclerotic changes independent of its use for transradial catheterization.

Keywords: radial artery, catheterization, pathology, medial calcifications, intimal hyperplasia, atherosclerosis

Creative Commons License This work is published and licensed by Dove Medical Press Limited. The full terms of this license are available at https://www.dovepress.com/terms.php and incorporate the Creative Commons Attribution - Non Commercial (unported, v3.0) License. By accessing the work you hereby accept the Terms. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed. For permission for commercial use of this work, please see paragraphs 4.2 and 5 of our Terms.

Download Article [PDF]