1. The efficacy of a new portable sequential compression device (SCD Express) in preventing venous stasis 
Stavros K. Kakkos, MD, MSc, PhD, Maura Griffin, DCR, DMU, MSc, PhD, George Geroulakos, MD, PhD, Andrew N. Nicolaides, MD, MS 
Journal of Vascular Surgery 
Volume 42, Issue 2, Pages (August 2005)
DOI: /j.jvs
Copyright © 2005 The Society for Vascular Surgery Terms and Conditions

2. Fig 1
SCD Express and SCD Response devices were equivalent in increasing baseline flow velocity in both the supine (A) and semirecumbent (B) positions; all P values <.01. C, The effect of the SCD Express on total volume flow (TVF) and peak volume flow (PVF) in the supine and semirecumbent positions.
Journal of Vascular Surgery  , DOI: ( /j.jvs )
Copyright © 2005 The Society for Vascular Surgery Terms and Conditions

3. Fig 2
Scatterplot shows a significant correlation between duplex ultrasonography-derived refill time and SCD Express-derived refill time in both the supine (A) (r = 0.39, P = .03) and semirecumbent (B) (r = 0.71, P < .001) positions.
Journal of Vascular Surgery  , DOI: ( /j.jvs )
Copyright © 2005 The Society for Vascular Surgery Terms and Conditions

4. Fig 3
Comparison of total volume expelled per hour during compression (TVH) (A) and peak volume expelled per hour during compression (PVH) (B) by the SCD Response Compression System with that expelled by SCD Express in the supine and semirecumbent positions. Asterisk indicates significant difference between devices (P = .03), whereas the actual value of each group is shown on top of the corresponding bar.
Journal of Vascular Surgery  , DOI: ( /j.jvs )
Copyright © 2005 The Society for Vascular Surgery Terms and Conditions