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  • Title: Immediate hemodynamic effect of the additional use of the SCD EXPRESS Compression System in patients with venous ulcers treated with the four-layer compression bandaging system.
    Author: Kalodiki E, Ellis M, Kakkos SK, Williams A, Davies AH, Geroulakos G.
    Journal: Eur J Vasc Endovasc Surg; 2007 Apr; 33(4):483-7. PubMed ID: 17224283.
    Abstract:
    OBJECTIVES: To test the hypothesis that the SCD EXPRESS intermittent pneumatic compression applied in combination with a four-layer bandage in patients with venous ulcers increases popliteal vein volume flow and velocity. DESIGN: Twenty limbs of 18 patients with venous leg ulcers were studied, median age 76 years. The Total Volume Flow (TVF) and the Peak Systolic Velocity (PSV) were recorded in the popliteal vein using duplex ultrasonography. Measurements were made (i) without bandage, (ii) with four layer bandage and (iii) following the application of the SCD Compression System on top of a four-layer bandage for at least 15 minutes. RESULTS: The median VCSS was 17 (range, 12-22) while the median VSDS for reflux was 4.5 (range, 1-7.5). The median TVF was 71 mL/min (inter-quartile range 57-101) without bandage, 112 (IQR 89-148) with four-layer bandage and 291 (IQR 241-392) with the addition of the SCD System (P<.001, Wilcoxon signed ranks test). The median PSV was 8.4 cm/sec (IQR 6.8-14) without bandage, 13 (9.0-19) with four-layer bandage and 27 (21-31) with the addition of the SCD System (P<.001, Wilcoxon signed ranks test). Both TVF and PSV increased slightly with the addition of the four-layer bandage. However, with the addition of the SCD System these parameters increased three fold. CONCLUSIONS: The SCD EXPRESS Compression System accelerates venous flow in the legs of patients with venous ulcers already treated with a four-layer bandage. The combination of four-layer compression with the SCD System on healing venous ulcers needs to be tested by a clinical effectiveness study.
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