The impedance threshold device (ITD-7)--a new device for combat casualty care to augment circulation and blood pressure in hypotensive spontaneously breathing warfighters. J Spec Oper Med 2009;9(2):49-53
Date
10/10/2009Pubmed ID
19813518DOI
10.55460/3F1L-5UQFScopus ID
2-s2.0-77956273577 (requires institutional sign-in at Scopus site) 6 CitationsAbstract
Inspiration through -7cm H2O resistance results in an increase in venous blood flow back to the heart and a subsequent increase in cardiac output and blood pressure in hypotensive animals and patients. Breathing through the impedance threshold device with 7cm H2O resistance (ITD-7) also reduces intracranial pressure with each inspiration, thereby providing greater blood flow to the brain. A new device called an ITD-7 was developed to exploit these physiological mechanisms to buy time in hypotensive War Fighters when other therapies are not readily available. Animal and clinical data with the ITD-7 demonstrate the potential value and limitations of this new non-invasive approach to enhancing circulation.
Author List
Parsons DL, Convertino VA, Idris A, Smith S, Lindstrom D, Parquette B, Aufderheide TAuthor
Tom P. Aufderheide MD Professor in the Emergency Medicine department at Medical College of WisconsinMESH terms used to index this publication - Major topics in bold
Blood CirculationBlood Flow Velocity
Blood Pressure
Equipment Design
Humans
Hypotension
Military Medicine
Military Personnel
Respiration
Time Factors
Warfare
Wounds and Injuries