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Updated: Jun 19, 2026
08:16
High-Resolution Three-Dimensional Imaging of the Footpad Vasculature in a Murine Hindlimb Gangrene Model
Published on: March 16, 2022
[Haemorheological problems in lower-limb chronic arterial insufficiency]
Summary
Atherosclerosis obliterans in lower limbs impairs blood flow due to reduced red blood cell flexibility. This decrease in erythrocytic deformability hinders tissue oxygen use and persists even after vascular surgery.
Area of Science:
- Vascular Surgery
- Hematology
- Biochemistry
Background:
- Atherosclerosis obliterans of lower limb arteries causes chronic arterial insufficiency.
- Understanding the mechanisms of impaired oxygen delivery is crucial for effective treatment.
Purpose of the Study:
- To investigate the rheological properties of blood and plasma, erythrocytic deformability, and malonic dialdehyde levels in patients with lower limb atherosclerosis.
- To determine the leading mechanism of impaired oxygen utilization by tissues in these patients.
Main Methods:
- Study included 87 patients with stage IIB and III chronic arterial insufficiency due to atherosclerosis obliterans.
- Measurements of blood rheology, plasma properties, erythrocytic deformability, and malonic dialdehyde were performed at admission, post-conservative treatment, and post-reconstructive surgery.
Main Results:
- Significant impairments in blood rheology and decreased erythrocytic deformability were observed.
- Reduced erythrocytic deformability was identified as the primary factor hindering tissue oxygen utilization.
- These rheological impairments, particularly reduced red blood cell flexibility, persisted after surgical vascular reconstruction.
Conclusions:
- Decreased erythrocytic deformability is the leading mechanism responsible for impaired oxygen utilization in patients with lower limb atherosclerosis.
- The persistence of reduced red blood cell flexibility after surgery suggests it may be a contributing factor to ongoing circulatory issues.
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