1. A noninvasive determination of fistula blood flow in dialysis patients.
- Author
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Bouthier JD, Levenson JA, Simon AC, Bariety JM, Bourquelot PE, and Safar ME
- Subjects
- Adult, Aged, Animals, Arm blood supply, Arteriovenous Shunt, Surgical methods, Blood Flow Velocity, Brachial Artery surgery, Cardiac Output, Carotid Arteries transplantation, Cattle, Doppler Effect, Female, Humans, Male, Middle Aged, Renal Dialysis, Transplantation, Heterologous, Arteriovenous Shunt, Surgical standards
- Abstract
Arteriovenous fistula (AVF) blood flow was evaluated in 32 dialysis patients using a pulsed Doppler velocimeter with two dominant features: a range-gated time system and a double transducer probe. With the proposed apparatus, the observation angle between the ultrasound beam and the vessel axis was known. In radial AVF, blood flow was 728 +/- 53 ml/min and was negatively correlated with the age of the AVF (r = -0.62; p less than 0.01). In brachial AVF, blood flow was 778 +/- 152 ml/min. In bovine heterograft AVF, blood flow was 1,225 +/- 125 ml/min. In the overall population, a negative relationship was observed between the diameter of the fistula and the blood flow velocity (r = -0.57; p less than 0.01). The study describes an accurate noninvasive method for the determination of fistula blood flow in dialysis patients, which may be helpful in the follow-up of the regional hemodynamics of this vascular access.
- Published
- 1983
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