Publications by authors named "Bertrand Lun"

Objectives: The mechanism by which compression therapy works is still discussed, especially at calf level. Whether lower limb deep vein diameters change under compression stockings is a matter of debate: no change versus great change. New study material helps to address this question.

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Article Synopsis
  • Clinicians traditionally believe that Medical Compression Stockings (MCS) help prevent blood pooling by narrowing vein diameters, but recent studies show mixed results regarding this effect on lower leg deep veins.
  • This study investigates how lower leg deep veins respond to elastic compression from MCS and muscle contractions, aiming to better understand how MCS provide benefits.
  • A finite-element model created from MRI scans reveals that MCS have a minimal impact on reducing vein diameter compared to the significant reduction caused by muscle contractions, prompting a reevaluation of how MCS affect venous blood flow.
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This paper presents a preliminary study to demonstrate the instantaneous local effect of compression stocking (Class 2) on skin microcirculatory activity. The measurement needs to be carefully performed as the sensor is placed under the garment. To assess the local effect of compression stockings, we use the ambulatory device Hematron located on the calf under the garment.

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The aim of this preliminary study was to review the actual state of knowledge concerning the mechanisms underlying compression medical stockings action on the skin blood flow (SBF) in capillaries. SBF was assessed by measuring the thermal conductivity of living-tissues using microHematron ambulatory device. The investigation was performed for different postures using three standard French classes (10-15 mmHg, 15-20 mmHg and 20-36 mmHg) of Medical compression stockings (MCS) on six healthy subjects without chronic venous insufficiency.

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Objective: To compare the proportion and rate of healing, pain, and quality of life of low-strength medical compression stockings (MCS) with traditional bandages applied for the treatment of recalcitrant venous leg ulcers.

Methods: A single-center, randomized, open-label study was performed with consecutive patients. Sigvaris prototype MCS providing 15 mm Hg-25 mm Hg at the ankle were compared with multi-layer short-stretch bandages.

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Background: Evening edema of the legs is a physiologic phenomenon occurring after sitting and standing.

Objective: The objective of this study was to investigate which compression pressure is necessary to prevent leg swelling.

Methods: In 12 volunteers, the volume of both lower legs was measured in the morning and 7 h later, the difference being defined as evening edema (mL).

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