Hemorrhage Clinical Trial
Official title:
Randomized Sequence, Assessor-Blind, Cross-Over Study of a Windlass Tourniquet, a Pneumatic Tourniquet and an Elastic Adhesive Bandage for Use as a Tourniquet
Verified date | January 2016 |
Source | Migura, Marcus |
Contact | n/a |
Is FDA regulated | No |
Health authority | |
Study type | Interventional |
This cross-over study of twenty five (anticipated) healthy human subjects will utilize two active control devices, and two different widths of the investigational device. One active control is representative of the usual care tourniquet applied in hospital settings. The second active control is a windlass tourniquet representative of the pre-hospital and military usual care tourniquet device. Two inch and four inch widths of the investigational device will be evaluated. The purpose of this study is to characterize and compare investigational and control tourniquet safety and efficacy. All tourniquets will be applied to the upper thigh. Efficacy data is provided by the presence or absence of popliteal flow when assessed with ultrasound. Mapping of interface pressures between the skin and the tourniquet will provide safety data. A minimum washout of five minutes will be allowed between tourniquet applications. All interventions will be applied in one visit. No follow up visit is anticipated.
Status | Completed |
Enrollment | 19 |
Est. completion date | December 2015 |
Est. primary completion date | December 2015 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | All |
Age group | 18 Years to 55 Years |
Eligibility |
Inclusion Criteria: 1. Upper thigh circumference greater than 61 cm or 24 inches. 2. Upper thigh circumference greater than the 50th percentile based on available anthropometric data. Exclusion Criteria: 1. Currently taking medications for the treatment of hypertension. 2. Cardiac, renal, pulmonary, hepatic or hemologic disease or disorder. 3. Patients with signs or symptoms of vascular insufficiency. Specifically, patients with any history of non-healing wound, ulcer, blood clots or peripheral vascular disease will be excluded. 4. Any coagulation disorder, prior thrombotic or embolic events such as a deep vein thrombosis. 5. Sickle cell. 6. Diabetes mellitus 7. Rheumatic arthritis or other auto immune disease. 8. Major surgery, significant traumatic injury, within 60 days trial. 9. Skin grafts on lower extremities. 10. Known or observed neurological symptoms, to include peripheral neurological symptoms or deficits. 11. Pregnant women, and women who suspect themselves to be pregnant are not eligible for this study. 12. Any known malignancy. 13. Claudication |
Country | Name | City | State |
---|---|---|---|
United States | Vascular Medicine & Surgical Associates | Youngstown | Ohio |
Lead Sponsor | Collaborator |
---|---|
Marcus Migura | Mercy Health |
United States,
Hill JP, Montgomery LD, Hopper KW, Roy LA. (U) ONR/MARCORSYSCOM Evaluation of Self-Applied Tourniquets for Combat Applications, Second Phase. Panama City, FL, US : Navy Experimental Diving Unit, April 3, 2007. NEDU Technical Report No.07-07.
King RB, Filips D, Blitz S, Logsetty S. Evaluation of possible tourniquet systems for use in the Canadian Forces. J Trauma. 2006 May;60(5):1061-71. — View Citation
Kragh JF Jr, O'Neill ML, Walters TJ, Dubick MA, Baer DG, Wade CE, Holcomb JB, Blackbourne LH. The military emergency tourniquet program's lessons learned with devices and designs. Mil Med. 2011 Oct;176(10):1144-52. — View Citation
Ruterbusch VL, Swiergosz MJ, Montgomery LD, Hopper KW, Gerth WA. (U) ONR/MARCORSYSCOM Evaluation of Self-Applied Tourniquets for Combat Applications. Panama City, FL, US : Navy Experimental Diving Unit, November 10, 2005. NEDU Technical Report No.05-15.
Swan KG Jr, Wright DS, Barbagiovanni SS, Swan BC, Swan KG. Tourniquets revisited. J Trauma. 2009 Mar;66(3):672-5. doi: 10.1097/TA.0b013e3181986959. — View Citation
Taylor DM, Vater GM, Parker PJ. An evaluation of two tourniquet systems for the control of prehospital lower limb hemorrhage. J Trauma. 2011 Sep;71(3):591-5. doi: 10.1097/TA.0b013e31820e0e41. — View Citation
Thomas J. Walters PhD; Joseph C. Wenke PhD; SFC Dominique; Greydanus, USA; David S. Kauvar MD, CPT, MC; David G. Baer PhD. (U) U. S. Army Institute of Surgical Research Laboratory Evaluation of Battlefield Tourniquets in Human Volunteers, Ft. Sam Houston, TX: U. S. Army Institute of Surgical Research, September 30, 2005. USAISR Technical Report No.2005-05
Walters TJ, Mabry RL. Issues related to the use of tourniquets on the battlefield. Mil Med. 2005 Sep;170(9):770-5. — View Citation
Walters TJ, Wenke JC, Kauvar DS, McManus JG, Holcomb JB, Baer DG. Effectiveness of self-applied tourniquets in human volunteers. Prehosp Emerg Care. 2005 Oct-Dec;9(4):416-22. — View Citation
Wenke JC, Walters TJ, Greydanus DJ, Pusateri AE, Convertino VA. Physiological evaluation of the U.S. Army one-handed tourniquet. Mil Med. 2005 Sep;170(9):776-81. — View Citation
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Radiologist Limb Occlusion Assessment | Duplex and color flow ultrasound are used to assess distal blood flow at the popliteal artery for 1 sustained minute following the application of a each tourniquet intervention to the middle upper thigh. If no flow is observed for 1 sustained minute then it is considered successful occlusion. A still image is then saved for later evaluation by the blinded outcome assessor. The 5 cm tape was discontinued after the 4th participant because the tape was considered to unacceptably narrow after stretching and this was considered a mechanical failure even if occlusion was observed. Therefore the 5 cm tape data was not evaluated by the radiologist. |
For 1 sustained minute after application of each tourniquet intervention. | |
Primary | Investigator Limb Occlusion Assessment | Duplex and color flow ultrasound are used to assess distal blood flow at the popliteal artery for 1 sustained minute following the application of each tourniquet intervention to the middle upper thigh. If no flow is observed for 1 sustained minute then it is considered a successful occlusion. This assessment was made by the investigator and ultrasonographer applying the intervention. | For 1 sustained minute after application of each tourniquet intervention. |
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