COMPARATIVE STUDY
JOURNAL ARTICLE
RANDOMIZED CONTROLLED TRIAL

Electrical foot stimulation: a potential new method of deep venous thrombosis prophylaxis

James J Czyrny, Robert E Kaplan, Gregory E Wilding, Christopher H Purdy, Jack Hirsh
Vascular 2010, 18 (1): 20-7
20122356
The purpose of this study was to compare venous blood flow velocity of intermittent pneumatic compression to electrical stimulation of the foot. A prospective randomized controlled study of 40 healthy volunteers was conducted. Subjects were seated for 4 hours during which they received electrical stimulation of the sole of the foot or intermittent pneumatic compression of the foot... Short-term electrical foot stimulation is at least as effective as foot intermittent pneumatic compression in increasing popliteal and femoral blood flow velocity. [corrected] Popliteal and femoral venous blood flow velocities were measured via Doppler ultrasonography. Blood flow velocity in the nonstimulated or noncompressed lower extremity served as a simultaneous control. For both the femoral and popliteal veins, the electrical foot stimulation group exhibited a greater increase in blood flow velocity than the intermittent pneumatic compression group. Electrical foot stimulation was noninferior relative to standard intermittent pneumatic compression. Specifically, this result of a greater increase in blood flow velocity is achieved at time = 120 minutes for the femoral vein (t = 2.70; p = .005) and time = 120 (t = 2.75; p = .004) and 240 (t = 2.27; p = .014) minutes for the popliteal vein. Short-term electrical foot stimulation is at least as effective as knee-high intermittent pneumatic compression in increasing popliteal and femoral blood flow velocity. Electrical foot stimulation has the potential to be an effective method of deep venous thrombosis prophylaxis.

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