Enter your Email address:
Wolters Kluwer Health may email you for journal alerts and information, but is committed
to maintaining your privacy and will not share your personal information without
You currently have no recent searches
Dashevsky, David1; Rood, Aaron1; Muller, Matthew2; Sparks, Kenneth3; Ryan, Edward J.2; Glickman, Ellen FACSM2
1Orbital Research INC, Cleveland, OH. 2Kent State University, Kent, OH. 3Cleveland State University, Cleveland, OH.
(No disclosure reported)
Acute hemorrhage and subsequent circulatory collapse (shock) account for approximately 50% of the deaths on the battlefield and the forward operating table, a statistic that has remained relatively unchanged since World War I. Hemorrhage is defined as the escape of blood from a vessel and is the most common cause of hypovolemic shock. Current and classic techniques available to battlefield medics for triage and are focused on the traditional vital sign markers. Similarly, monitoring shock in the civilian trauma patient has also focused on the clinical "gold standard" assessments of Blood Pressure (BP), arterial O2 saturation or simple pulse palpation. However, these standard vital sign measurements fail to predict death or identify reductions in central blood volume until cardiovascular collapse has already occurred. About 10 percent of the total blood volume can be removed with almost no effect on either arterial pressure or cardiac output.
PURPOSE: To develop and demonstrate a system that rapidly and non-invasively tracks vital sign markers throughout the progression of hemorrhage.
METHODS: Orbital Research Inc (ORI) and Kent State University (KSU) used an incremental lower body negative pressure (LBNP) routine to safely educe physiologic changes like those typical to hemorrhage. Six research subjects have completed the study. An instrumented glove (developed by Orbital Research) collected vital signs intermittently and non-invasively during the experiment. Standards measure of metabolism; ECG and cardiac output were collected continuously.
RESULTS: Using the instrumented glove to collect cardiovascular metrics, differences in R-R interval variability and Lf/Hf ratio are were detected during the LBNP sequence. Cardiac output, stroke volume and blood pressure data verified the physiologic compensations in response to the LBNP.
CONCLUSIONS: Heart Rate Variability (HRV) has also shown promise and correlation to early reductions in central blood volume when blood pressures and SpO2 have not yet changed. This project demonstrated feasibility of using instrumented to glove to rapidly collect cardiovascular markers indicative of the onset of hemorrhage.
©2010The American College of Sports Medicine
Colleague's E-mail is Invalid
Your Name: (optional)
Separate multiple e-mails with a (;).
Thought you might appreciate this item(s) I saw at Medicine & Science in Sports & Exercise.
Send a copy to your email
Your message has been successfully sent to your colleague.
Some error has occurred while processing your request. Please try after some time.
An Existing Folder
A New Folder
The item(s) has been successfully added to "".
Login with your LWW Journals username and password.
Username or Email:
Enter and submit the email address you registered with. An email with instructions to reset your password will be sent to that address.
Link to reset your password has been sent to specified email address.
What does "Remember me" mean?
By checking this box, you'll stay logged in until you logout. You'll get easier access to your articles, collections,
media, and all your other content, even if you close your browser or shut down your
To protect your most sensitive data and activities (like changing your password),
we'll ask you to re-enter your password when you access these services.
What if I'm on a computer that I share with others?
If you're using a public computer or you share this computer with others, we recommend
that you uncheck the "Remember me" box.
Save my selection
Article Level Metrics