Evaluating the Hemodynamic Performance of the VenAir Sequential Compression System
NCT ID: NCT07287007
Last Updated: 2026-01-06
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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RECRUITING
NA
105 participants
INTERVENTIONAL
2025-10-06
2026-10-05
Brief Summary
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1. The hemodynamic performance of VenAir paired with the thigh garments, calf garments, and foot garments is not inferior to that of SCD700 paired with the corresponding garments.
2. The hemodynamic performance of VenAir paired with the thigh garments, calf garments, and foot garments is not inferior to that of SCD700 paired with the thigh garment.
Researchers will compare VenAir and the SCD700 to see if the hemodynamic performance of VenAir is as well as or not worse than the SCD700.
Participants will lie down and rest for approximately 30 minutes to stabilize their heart rate. The researcher will then use ultrasound to measure the participant's blood flow while they wear different leg garments (one at a time) and also when no garment is worn.
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Detailed Description
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Conditions
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Study Design
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RANDOMIZED
CROSSOVER
OTHER
NONE
Study Groups
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VenAir
The VenAir and its garments (thigh, calf, foot) will be tested in a randomized testing order.
VenAir
VenAir is an intermittent pneumatic compression (IPC) device intended to help prevent venous thromboembolism (VTE), including deep vein thrombosis (DVT) and pulmonary embolism (PE). In this study, VenAir is applied to the participant's lower limb under standard operating settings, and hemodynamic performance is measured for comparison with SCD700.
SCD700
The SCD700 and its garments (thigh, calf, foot) will be tested in a randomized testing order.
SCD700
SCD700 is a commercially available intermittent pneumatic compression (IPC) device used to prevent venous thromboembolism (VTE), including deep vein thrombosis (DVT) and pulmonary embolism (PE). In this study, SCD700 is applied to the participant's lower limb under standard operating settings, and hemodynamic performance is measured to compare with VenAir.
Interventions
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SCD700
SCD700 is a commercially available intermittent pneumatic compression (IPC) device used to prevent venous thromboembolism (VTE), including deep vein thrombosis (DVT) and pulmonary embolism (PE). In this study, SCD700 is applied to the participant's lower limb under standard operating settings, and hemodynamic performance is measured to compare with VenAir.
VenAir
VenAir is an intermittent pneumatic compression (IPC) device intended to help prevent venous thromboembolism (VTE), including deep vein thrombosis (DVT) and pulmonary embolism (PE). In this study, VenAir is applied to the participant's lower limb under standard operating settings, and hemodynamic performance is measured for comparison with SCD700.
Eligibility Criteria
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Inclusion Criteria
* Aged 20-64 years
* Leg circumference within the size range of the SCD700 and VenAir garments
Exclusion Criteria
* Previous suspicion of deep vein thrombosis, pulmonary embolism, or phlebitis
* History of stroke
* History of varicose vein surgery
* Hypertension
* Diabetes
* Dermatitis, gangrene, or severe wounds
* Massive edema of legs
* Pregnancy
* Pulmonary edema
20 Years
64 Years
ALL
Yes
Sponsors
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Wellell Inc. Taiwan
INDUSTRY
Responsible Party
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Principal Investigators
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Cheng Yung Chang
Role: PRINCIPAL_INVESTIGATOR
Wellell Inc.
Locations
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Wellell Inc.
New Taipei City, , Taiwan
Countries
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Central Contacts
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Facility Contacts
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References
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Muhe E. Intermittent sequential high-pressure compression of the leg. A new method of preventing deep vein thrombosis. Am J Surg. 1984 Jun;147(6):781-5. doi: 10.1016/0002-9610(84)90200-9.
Kamm R, Butcher R, Froelich J, Johnson M, Salzman E, Shapiro A, Strauss HW. Optimisation of indices of external pneumatic compression for prophylaxis against deep vein thrombosis: radionuclide gated imaging studies. Cardiovasc Res. 1986 Aug;20(8):588-96. doi: 10.1093/cvr/20.8.588.
Labropoulos N, Giuliano KK, Tafur AJ, Caprini JA. Comparison of a nonpneumatic device to four currently available intermittent pneumatic compression devices on common femoral blood flow dynamics. J Vasc Surg Venous Lymphat Disord. 2021 Sep;9(5):1241-1247. doi: 10.1016/j.jvsv.2021.01.008. Epub 2021 Feb 1.
1. Virchow RLK. Die Verstopfung den Lungenarterie und ihre Folgen. Beitr Exper Path Physiol. 1846;2(1). 2. Pavon JM, Adam SS, Razouki ZA, et al. Effectiveness of Intermittent Pneumatic Compression Devices for Venous Thromboembolism Prophylaxis in High-Risk Surgical Patients: A Systematic Review. J Arthroplasty. 2016;31(2):524-532. doi:10.1016/j.arth.2015.09.043 3. Anderson DR, Morgano GP, Bennett C, et al. American Society of Hematology 2019 guidelines for management of venous thromboembolism: prevention of venous thromboembolism in surgical hospitalized patients. Blood Advances. 2019;3(23):3898-3944. doi:10.1182/bloodadvances.2019000975 4. Reitsma PH, Versteeg HH, Middeldorp S. Mechanistic View of Risk Factors for Venous Thromboembolism. ATVB. 2012;32(3):563-568. doi:10.1161/ATVBAHA.111.242818 5. Sadaghianloo N, Dardik A. The efficacy of intermittent pneumatic compression in the prevention of lower extremity deep venous thrombosis. Journal of Vascular Surgery: Venous and Lymphatic Disorders. 2016;4(2):248-256. doi:10.1016/j.jvsv.2015.07.006 6. Kakkos SK, Szendro G, Griffin M, Daskalopoulou SS, Nicolaides AN. The efficacy of the new SCD Response Compression System in the prevention of venous stasis. Journal of Vascular Surgery. 2000;32(5):932-940. doi:10.1067/mva.2000.110358 7. Kakkos SK, Szendro G, Griffin M, Sabetai MM, Nicolaides AN. Improved hemodynamic effectiveness and associated clinical correlations of a new intermittent pneumatic compression system in patients with chronic venous insufficiency. Journal of Vascular Surgery. 2001;34(5):915-922. doi:10.1067/mva.2001.118822 8. Morris RJ. Intermittent pneumatic compression - systems and applications. J Med Eng Technol. 2008;32(3):179-188. doi:10.1080/03091900601015147
Kakkos SK, Szendro G, Griffin M, Sabetai MM, Nicolaides AN. Improved hemodynamic effectiveness and associated clinical correlations of a new intermittent pneumatic compression system in patients with chronic venous insufficiency. J Vasc Surg. 2001 Nov;34(5):915-22. doi: 10.1067/mva.2001.118822.
Kakkos SK, Szendro G, Griffin M, Daskalopoulou SS, Nicolaides AN. The efficacy of the new SCD response compression system in the prevention of venous stasis. J Vasc Surg. 2000 Nov;32(5):932-40. doi: 10.1067/mva.2000.110358.
Sadaghianloo N, Dardik A. The efficacy of intermittent pneumatic compression in the prevention of lower extremity deep venous thrombosis. J Vasc Surg Venous Lymphat Disord. 2016 Apr;4(2):248-56. doi: 10.1016/j.jvsv.2015.07.006. Epub 2015 Sep 15.
Reitsma PH, Versteeg HH, Middeldorp S. Mechanistic view of risk factors for venous thromboembolism. Arterioscler Thromb Vasc Biol. 2012 Mar;32(3):563-8. doi: 10.1161/ATVBAHA.111.242818.
Anderson DR, Morgano GP, Bennett C, Dentali F, Francis CW, Garcia DA, Kahn SR, Rahman M, Rajasekhar A, Rogers FB, Smythe MA, Tikkinen KAO, Yates AJ, Baldeh T, Balduzzi S, Brozek JL, Ikobaltzeta IE, Johal H, Neumann I, Wiercioch W, Yepes-Nunez JJ, Schunemann HJ, Dahm P. American Society of Hematology 2019 guidelines for management of venous thromboembolism: prevention of venous thromboembolism in surgical hospitalized patients. Blood Adv. 2019 Dec 10;3(23):3898-3944. doi: 10.1182/bloodadvances.2019000975.
Pavon JM, Adam SS, Razouki ZA, McDuffie JR, Lachiewicz PF, Kosinski AS, Beadles CA, Ortel TL, Nagi A, Williams JW Jr. Effectiveness of Intermittent Pneumatic Compression Devices for Venous Thromboembolism Prophylaxis in High-Risk Surgical Patients: A Systematic Review. J Arthroplasty. 2016 Feb;31(2):524-32. doi: 10.1016/j.arth.2015.09.043. Epub 2015 Oct 29.
Virchow RLK. Die Verstopfung den Lungenarterie und ihre Folgen. Beitr Exper Path Physiol. 1846;2(1).
Other Identifiers
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EC1140707-F
Identifier Type: -
Identifier Source: org_study_id
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