Intermittent calf and foot compression increases lower extremity blood flow

Area of Science:

• Vascular Medicine
• Hemodynamics
• Peripheral Artery Disease

Background:

• Foot compression enhances foot skin perfusion, while calf compression boosts popliteal artery blood flow.
• The combined effects of these compression techniques, particularly in patients with superficial femoral artery (SFA) occlusion, remain unevaluated.

Purpose of the Study:

• To determine if separate and combined calf and foot compression improve popliteal artery blood flow and foot skin perfusion.
• To assess the comparative efficacy of compression strategies in patients suffering from superficial femoral artery occlusion.

Main Methods:

• Popliteal artery blood flow and great toe skin perfusion were measured in 12 healthy volunteers and 7 patients with SFA occlusion.
• Calf and foot compression cuffs were applied, delivering 120 mm Hg pressure with a 10-second inflation and 20-second deflation cycle.
• Measurements were taken during separate and simultaneous application of calf and foot compression.

Main Results:

• Resting popliteal artery blood flow and foot skin perfusion were significantly higher in patients with SFA occlusion compared to healthy volunteers.
• Both compression methods increased blood flow and perfusion in both groups; relative increases were greater in volunteers.
• Calf compression yielded greater popliteal artery blood flow increases than foot compression in both groups.

Conclusions:

• Calf and foot compression, applied separately or together, enhance popliteal artery blood flow and foot skin perfusion in healthy individuals and SFA occlusion patients.
• Additive increases in popliteal artery blood flow with simultaneous compression were observed in healthy individuals but not in SFA occlusion patients.
• Foot skin perfusion increases in SFA occlusion patients mirrored those in healthy volunteers, suggesting potential benefits for distal perfusion.