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Updated: May 20, 2026
08:39
Fabrication of Compressed Hosiery and Measurement of its Pressure Characteristic Exerted on the Lower Limbs
Published on: May 27, 2020
High compression pressure over the calf is more effective than graduated compression in enhancing venous pump
Summary
Negative graduated compression bandages (NGCB) significantly improve calf pump function in patients with severe venous insufficiency compared to standard graduated compression bandages (GCB). This enhances hemodynamic efficiency during walking.
Area of Science:
- Vascular Medicine
- Biomedical Engineering
- Clinical Trials
Background:
- Graduated compression therapy is a standard treatment for chronic venous insufficiency.
- Assessing the hemodynamic efficiency of different compression bandage types is crucial for optimizing patient outcomes.
Purpose of the Study:
- To compare the hemodynamic efficiency of a multi-component graduated compression bandage (GCB) against a negative graduated compression bandage (NGCB).
- To evaluate the impact of higher calf pressure application with NGCB on venous calf pump function.
Main Methods:
- A plethysmographic method was used to measure the venous calf pump ejection fraction in 20 patients with greater saphenous vein incompetence (CEAP C2-C5).
- Measurements were taken during a standardized walking test under three conditions: no compression, GCB, and NGCB.
- Sub-bandage pressures were recorded at the distal leg and calf for each condition.
Main Results:
- NGCB, with higher calf pressure (62 mmHg) than distal leg pressure (50 mmHg), resulted in a significantly greater increase in ejection fraction (+157%) compared to GCB (+115%).
- GCB applied with distal pressure of 54 mmHg and calf pressure of 28 mmHg showed less improvement in ejection fraction.
- The difference in ejection fraction improvement between NGCB and GCB was statistically significant (P < 0.001).
Conclusions:
- Negative graduated compression bandages (NGCB) offer superior hemodynamic benefits for patients with severe venous incompetence.
- NGCB are particularly effective in improving venous calf pump function during standing and walking activities compared to GCB.
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