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Medical AI Inquiry: You was designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.  Labels: BACKGROUND, METHODS, RESULTS. Meshes: Adult, Aged, Aged, 80 and over, Arteriovenous Shunt, Surgical, Blood Flow Velocity, Brachial Artery, Elbow, Female, Humans, Ischemia, Male, Middle Aged, Radial Artery, Regional Blood Flow, Renal Dialysis, Risk Factors, Treatment Outcome, Ultrasonography, Doppler, Duplex, Young Adult.
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Is hemodialysis access-induced ischemia related to configuration and access flow rates of upper arm arteriovenous fistulas at the elbow? Context: The purpose of the study was to find a relationship between the configuration of autogenous upper arm arteriovenous fistulas (AVFs) at the elbow and high access flow rates. Forty-seven patients with well-functioning autogenous upper arm AVFs at the elbow were included. The configuration of the AVF and access flow rate was determined by duplex scanning. Hemodialysis access-induced distal ischemia scores and access flow rates were comparable in AVFs with 1 or 2 efferent veins (1829.9 ± 1121.3 mL/min, range [400-5000] vs. 1988.5 ± 1324.5 mL/min, range [130-5000]; P = 0.61). The basilic vein had statistically significant larger diameters than the cephalic vein (8.1 ± 2.7 mm, range [2.7-11.0] vs. 5.8 ± 2.5 mm, range [3.8-13.0]; P = 0.02), but no statistically significant difference in flow rates were observed (1884.5 ± 889.0 mL/min, range [824-3600] vs. 1130.0 ± 1258.4 mL/min, range [400-5000]; P = 0.53). Access flow rates were higher in AVFs with the brachial artery as afferent artery than when the radial artery was used (1909.5 ± 1273.2 mL/min, range [550-5000] vs. 1188.6 ± 642.7 mL/min, range [130-2800]; P = 0.02).
assistant
There is no difference in access flow rates in autogenous AVFs at the elbow with 1 or 2 efferent veins. Autogenous AVFs at the elbow on the radial artery have lower access flow rates than AVFs on the brachial artery. Final Decision: no