The effect of flow changes on the arterial system proximal to an arteriovenous fistula for hemodialysis
| Autor: | Rob J.Th.J. Welten, Jan H.M. Tordoir, Jeroen P. Kooman, Ruben Dammers, Peter J.E.H.M. Kitslaar, Arnold P.G. Hoeks, Jeroen M.M. Hameleers |
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| Přispěvatelé: | Biomedische Technologie, Algemene Heelkunde, Interne Geneeskunde, RS: NUTRIM School of Nutrition and Translational Research in Metabolism, RS: CARIM School for Cardiovascular Diseases |
| Jazyk: | angličtina |
| Rok vydání: | 2005 |
| Předmět: |
Male
medicine.medical_specialty Brachial Artery Acoustics and Ultrasonics Endothelium medicine.medical_treatment Blood viscosity Biophysics Arteriovenous fistula End stage renal disease Arteriovenous Shunt Surgical Renal Dialysis Internal medicine medicine.artery medicine Humans Radiology Nuclear Medicine and imaging Brachial artery Radial artery Aged Ultrasonography Radiological and Ultrasound Technology business.industry Anatomy Middle Aged Blood Viscosity medicine.disease medicine.anatomical_structure Intima-media thickness Regional Blood Flow Hemorheology Radial Artery Cardiology Kidney Failure Chronic Female Stress Mechanical Hemodialysis Tunica Intima business Blood Flow Velocity |
| Zdroj: | Ultrasound in Medicine and Biology, 31(10), 1327-1333. Elsevier Science |
| ISSN: | 1879-291X 0301-5629 |
| Popis: | Arterial remodeling in response to flow changes is controlled by the endothelium, sensing wall shear stress (SS) changes. The present study focuses on the remodeling capacities of the brachial (BA) and radial artery (RA) of 16 renal failure patients after arteriovenous fistula creation. Pre- and postoperatively at predetermined time-points, diameter, wall thickness and peak and mean SS were assessed. After arteriovenous fistula creation, acute increases in BA SS (p = 0.018) and lumen diameter (p = 0.028) were observed. The diameter further increased in the next year (p = 0.023), whereas BA SS remained unchanged. RA SS and diameter increased acutely (p = 0.005) and remained unaltered after 1 y. RA wall thickness tended to decrease acutely (p = 0.059) and increased steadily during 1 y (p = 0.008). BA and RA diameter acutely increased after an acute SS rise and remained augmented after 1 y. Also, the RA vessel wall thickness enlarged, indicating structural remodeling. After 1 y, however, these changes did not result in SS restoration. (E-mail: ). |
| Databáze: | OpenAIRE |
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