Remodeling of ipsilateral ulnar artery after radial artery harvesting for coronary artery bypass graft
| Autor: | Lourival N Lougon, Heber Souza Melo Silva, Fanilda Souto Barros, Walter J. Gomes, Melchior Luiz Lima |
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| Rok vydání: | 2021 |
| Předmět: |
Adult
Male medicine.medical_specialty Bypass grafting Physiology 030204 cardiovascular system & hematology Vascular Remodeling 03 medical and health sciences Ulnar Artery 0302 clinical medicine Forearm Physiology (medical) Surgical removal medicine.artery medicine Humans Radial artery Ulnar artery Pharmacology business.industry General Medicine Middle Aged Surgery medicine.anatomical_structure 030220 oncology & carcinogenesis Radial Artery Tissue and Organ Harvesting Blood supply Female Ultrasonography business Artery |
| Zdroj: | Canadian journal of physiology and pharmacology. 99(2) |
| ISSN: | 1205-7541 |
| Popis: | There are controversies in the literature on the blood supply to the forearm after surgical removal of the radial artery in coronary artery bypass grafting (CABG). The objective was to investigate the arterial remodeling of the ulnar artery after the removal of the radial artery in myocardial revascularization by means of ultrasound examination with color Doppler in the pre- and post-operative periods. This paper describes an observational prospective study of the remodeling of the left brachial and ulnar arteries (donor arm) in 103 right-handed non-consecutive adult patients undergoing CABG with removal of the ipsilateral radial artery using the color Doppler ultrasound examination. In the ulnar artery, a significant increase (P < 0.05) was seen in the following measurements: lumen diameter by 13%, lumen area by 26%, peak systolic flow by 40%, and average flow by 46%. Intima-media thickness measured in the ulnar artery did not show a statistically significant difference (P = 0.22), except in diabetic patients (P = 0.007). We conclude that the ulnar artery undergoes positive physiological remodeling, adapting to the new requirements of chronic increase in flow after the ipsilateral removal of the radial artery to serve as a graft in CABG. There was no evidence of increased intima-media thickness, except in diabetic patients. |
| Databáze: | OpenAIRE |
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