Efficacy of Micromobile Foot Compression Device in Increasing Lower Limb Venous Blood Flow

Background. A novel, micromobile foot compression device (MMC) has been developed to reduce the risk of venous thromboembolism associated with prolonged seated immobility.Objective. To compare the efficacy of the MMC with graduated compression stockings in augmenting lower limb venous blood flow.Patients/Methods. Twenty participants were randomised to wear the MMC or a graduated compression stocking (GCS) on either the left or right leg while seated. Doppler ultrasound measurements of popliteal vein blood flow and leg circumference measurements were made-30and-10minutes (baseline) and +30 and +60 minutes following application of the interventions. The primary outcome variable was peak systolic velocity. A mixed linear model was used, with covariates including baseline measurement, randomised side, time, and a time by interaction term.Results. The mean popliteal vein peak systolic velocity at 60 minutes with the MMC was 20.1 cm/s which was significantly higher than with the GCS (difference 14.1 cm/s 95% CI 12.1–16.2), representing a 3.8-fold increase from baseline.Conclusion. The MMC resulted in a marked increase in lower limb venous blood flow which suggests that it may have efficacy in reducing the risk of venous thromboembolism associated with prolonged seated immobility, such as long distance air travel.

Download Full-text

Effect of sitting in ergonomic chairs on lower limb venous blood flow

Occupational Ergonomics ◽

10.3233/oer-2009-0163 ◽

2009 ◽

Vol 8 (2,3) ◽

pp. 125-132 ◽

Cited By ~ 5

Author(s):

Erik Levin ◽

Deborah Macintosh ◽

Tanya Baker ◽

Mark Weatherall ◽

Richard Beasley

Keyword(s):

Blood Flow ◽

Lower Limb ◽

Venous Blood ◽

Venous Blood Flow

Download Full-text

Changes in lower extremity blood flow during advancing phases of pregnancy and the effects of special footwear

Jornal Vascular Brasileiro ◽

10.1590/1677-5449.002617 ◽

2017 ◽

Vol 16 (3) ◽

pp. 214-219 ◽

Cited By ~ 2

Author(s):

Marta Gimunová ◽

Martin Zvonař ◽

Kateřina Kolářová ◽

Zdeněk Janík ◽

Ondřej Mikeska ◽

...

Keyword(s):

Blood Flow ◽

Venous Blood ◽

Cross Sectional Area ◽

Popliteal Vein ◽

Control Group ◽

Venous Disease ◽

Venous Blood Flow ◽

Sectional Area ◽

Cross Sectional ◽

Experimental Group

Abstract Background During pregnancy, a number of changes affecting venous blood flow occur in the circulatory system, such as reduced vein wall tension or increased exposure to collagen fibers. These factors may cause blood stagnation, swelling of the legs, or endothelial damage and consequently lead to development of venous disease. Objectives The aim of this study is to evaluate the effect of special footwear designed to improve blood circulation in the feet on venous blood flow changes observed during advancing phases of pregnancy. Methods Thirty healthy pregnant women participated in this study at 25, 30, and 35 weeks of gestation. Participants were allocated at random to an experimental group (n = 15) which was provided with the special footwear, or a control group (n = 15). At each data collection session, Doppler measurements of peak systolic blood flow velocity and cross-sectional area of the right popliteal vein were performed using a MySonoU6 ultrasound machine with a linear transducer (Samsung Medison). The differences were compared using Cohen’s d test to calculate effect size. Results With advancing phases of pregnancy, peak systolic velocity in the popliteal vein decreased significantly in the control group, whereas it increased significantly in the experimental group. No significant change in cross-sectional area was observed in any of the groups. Conclusions Findings in the experimental group demonstrated that wearing the footwear tested may prevent venous blood velocity from reducing during advanced phases of pregnancy. Nevertheless, there is a need for further investigation of the beneficial effect on venous flow of the footwear tested and its application.

Download Full-text

An Evaluation of a Novel Compression Device on Popliteal Venous Blood Flow

Angiology Open Access ◽

10.4172/2329-9495.1000178 ◽

2016 ◽

Vol 4 (3) ◽

Cited By ~ 1

Author(s):

David Shashar ◽

Jonathan Rosenblum ◽

Michael Miller ◽

Eitan Heldinberg ◽

Jeremy Tamir

Keyword(s):

Blood Flow ◽

Venous Blood ◽

Venous Blood Flow ◽

Compression Device

Download Full-text

The postural system as a functional venous pump

Manual Therapy Posturology & Rehabilitation Journal ◽

10.17784/mtprehabjournal.2018.16.630 ◽

2020 ◽

pp. 1-6

Author(s):

Vladimir Usachev ◽

Pierre-Marie Gagey

Keyword(s):

Blood Flow ◽

Venous Blood ◽

The Body ◽

Popliteal Vein ◽

Venous Blood Flow ◽

Venous Circulation ◽

Postural System

Background: In the 90s, Inamura et al. have drawn our attention to the role played by the postural system in the return venous circulation, thanks to plethysmographic recordings which gave free rein to the imagination of the authors to suppose the functioning mechanisms of this venous pump. In 2010, two anatomists, Uhl & Gillot, transformed our representation of the venous network and made assumptions about the functioning of the venous pump. Objective/ Methods: The aim of this work is to verify these hypotheses by scanning the venous blood flow at the level of the sinus soleus and the popliteal vein during various posture-kinetic situations. Conclusion: These studies fully confirm the hypotheses. It is therefore likely that the postural system intervenes not only in the phenomena of stabilisation of the body, but also in the back venous circulation.

Download Full-text

Neuromuscular electrical stimulation for thromboprophylaxis: A systematic review

Phlebology The Journal of Venous Disease ◽

10.1177/0268355514567731 ◽

2015 ◽

Vol 30 (9) ◽

pp. 589-602 ◽

Cited By ~ 9

Author(s):

S Hajibandeh ◽

GA Antoniou ◽

JRH Scurr ◽

F Torella

Keyword(s):

Systematic Review ◽

Blood Flow ◽

Electrical Stimulation ◽

Venous Thromboembolism ◽

Venous Blood ◽

Neuromuscular Electrical Stimulation ◽

Current Evidence ◽

Venous Blood Flow ◽

Flow Measurements ◽

Blood Flow Measurements

Objective To evaluate the effect of neuromuscular electrical stimulation on lower limb venous blood flow and its role in thromboprophylaxis. Method Systematic review of randomised and non-randomised studies evaluating neuromuscular electrical stimulation, and reporting one or more of the following outcomes: incidence of venous thromboembolism, venous blood flow and discomfort profile. Results Twenty-one articles were identified. Review of these articles showed that neuromuscular electrical stimulation increases venous blood flow and is generally associated with an acceptable tolerability, potentially leading to good patient compliance. Ten comparative studies reported DVT incidence, ranging from 2% to 50% with neuromuscular electrical stimulation and 6% to 47.1% in controls. There were significant differences, among included studies, in terms of patient population, neuromuscular electrical stimulation delivery, diagnosis of venous thromboembolism and blood flow measurements. Conclusion Neuromuscular electrical stimulation increases venous blood flow and is well tolerated, but current evidence does not support a role for neuromuscular electrical stimulation in thromboprophylaxis. Randomised controlled trials are required to investigate the clinical utility of neuromuscular electrical stimulation in this setting.

Download Full-text