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Graduated compression stockings reduce the venous velocity augmentation of foot pumps

David Higgs1, Michael Uglow, Theresa Fail

  • 1Queen Alexandra Hospital, Portsmouth.

Journal of the Royal Naval Medical Service
|March 5, 2005
PubMed

Insights

The A-V Impulse System foot pump alone, without compression stockings, significantly increased blood flow velocity more than when used together. Further research is needed to determine if this combination impacts thrombo-embolic disease risk.

Area of Science:

  • Vascular Surgery
  • Biomedical Engineering
  • Thromboembolic Disease Prevention

Background:

  • Graduated compression stockings and the A-V Impulse System are commonly used to prevent thrombo-embolic disease after hip surgery.
  • Previous studies have combined these interventions, leaving their individual effects unknown.
  • The potential for a synergistic effect between these devices remains uninvestigated.

Purpose of the Study:

  • To evaluate the impact of compression stockings on the A-V Impulse System's effectiveness in accelerating venous blood flow.
  • To determine if the A-V Impulse System alone is more effective than when used with stockings.

Main Methods:

  • Ten healthy volunteers participated in the study.
  • A duplex scanner was used to measure peak venous velocities in the common femoral vein.
  • The A-V Impulse System was tested with and without graduated compression stockings.

Main Results:

  • The A-V Impulse System used without compression stockings resulted in the greatest increase in peak venous velocity.
  • This increase was 34% higher compared to using the foot pump in conjunction with stockings.
  • The study highlights a potential difference in efficacy based on the combined use of these devices.

Conclusions:

  • Compression stockings may attenuate the peak venous velocity augmentation achieved by the A-V Impulse System.
  • The clinical significance of this difference regarding thrombo-embolic episode reduction requires further investigation.
  • A randomized clinical trial is proposed to clarify the individual and combined effects on thrombo-embolic disease prevention.

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