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Nutritional blood flow to the limbs after access procedures
Summary
Radiocephalic fistulae in dialysis patients can significantly reduce skin and muscle blood flow, especially in symptomatic individuals, potentially causing pain and other complications.
Area of Science:
- Vascular Surgery
- Nephrology
- Physiology
Background:
- Radiocephalic fistulae are common vascular access for hemodialysis.
- Some dialysis patients experience symptoms like cold hands, suggesting circulatory issues.
Purpose of the Study:
- To investigate blood flow to skin and muscle in relation to radiocephalic fistulae in dialysis patients.
- To correlate circulatory changes with symptoms in dialysis patients.
Main Methods:
- Measured skin and muscle blood flow in normal subjects, asymptomatic dialysis patients, and symptomatic dialysis patients with radiocephalic fistulae.
- Assessed blood flow at rest and during exercise.
Main Results:
- Symptomatic patients showed significantly reduced skin blood flow in the fistula hand.
- Muscle blood flow was reduced at rest and exercise-induced hyperemia was impaired in fistula hands of all dialysis patients.
- Asymptomatic patients had normal skin blood flow compared to controls.
Conclusions:
- Arteriovenous fistulae can lead to reduced peripheral blood flow.
- Hemodynamic changes associated with fistulae may cause symptoms like pain, paresthesia, muscle wasting, and claudication in dialysis patients.