Navigation Links
Emergency medicine physicians develop device to stop lethal bleeding in soldiers
Date:1/11/2012

AUGUSTA, Ga. Two emergency medicine physicians with wartime experience have developed a weapon against one rapidly lethal war injury.

Insurgents commonly aim just below a soldier's body armor, where the trunk and legs join, to injure the body's largest blood vessels, causing soldiers to bleed to death within minutes.

"There is no way to put a tourniquet around it, so soldiers are getting shot in this area and dying within several minutes," said Dr. Richard Schwartz, Chairman of the Department of Emergency Medicine in the Medical College of Georgia at Georgia Health Sciences University. Police officers wearing chest protection as well as automobile accident victims can sustain similar injuries.

Efforts to externally compress the injury have been largely ineffective; the inch-round aorta runs parallel to the spine, so it can't be approached from the back, and is several inches inside the abdomen even in a fit soldier.

Schwartz and Dr. John Croushorn, Chairman of the Department of Emergency Medicine at Trinity Medical Center in Birmingham, Ala., hope their inflatable wedge-shaped bladder will make a lifesaving difference.

It's called an abdominal aortic tourniquet and it's placed around the body at the navel level, tightened then, much like a blood pressure cuff, inflated into the abdomen until it occludes the aorta and stops the bleeding. The goal is to restore the golden hour so soldiers survive long enough to get definitive care for their injury.

"By effectively cross-clamping the aorta with the abdominal aortic tourniquet, you are essentially turning the faucet off," Croushorn said. "You are stopping the loss of blood from the broken and damaged blood vessels. You are buying the patient an additional hour of survival time based on blood loss."

It was known that the knee pressed into the mid-abdomen could slow bleeding and block blood flow to the legs. The idea for the device came from studies conducted at GHSU in 2006 that quantified pressure needed to occlude the abdominal aorta. Schwartz and Croushorn started talking about turning that concept into a lifesaving device at an American College of Emergency Physicians meeting.

They first put the device on pigs, inflated it to the point there was no blood flow from the aorta to the femoral arteries and left it that way for an hour. There saw no potentially deadly increase in potassium levels in the blood and the pigs' leg and gut tissue remained healthy. Next they used it on healthy humans for a shorter duration to ensure that the aorta could be completed occluded.

Croushorn and Schwartz have premarket clearance for the abdominal aortic tourniquet from the Food and Drug Administration and have identified a manufacturer. They already have orders for the device from the U.S. military and will teach courses on how to use it to the military and law enforcement. Device development was funded by the U.S. Department of Defense.

The physicians still want to explore their device's potential for also helping CPR recipients. The chest compression that is the hallmark of CPR actually pushes blood all the way out to the extremities when the focus is keeping vital organs alive.

"With this device, you could, in theory, double the blood flow to the kidneys, heart and brain," Schwartz said. They also believe it will help concentrate drugs given during CPR where they are needed. "Now when a medic pushes a cardiac drug during cardiac arrest, the drug is circulated through the toes before it reaches steady state concentrations in the heart," Croushorn said.

Schwartz was a member of the 5th Special Forces Group (Airborne) during Operation Desert Shield and Desert Storm. He works with the Federal and Georgia Bureaus of Investigation and helped develop courses that bridge the gap between military and civilian groups that may work together during major disasters. Croushorn served as Command Surgeon, Task Force 185 Aviation in the U.S. Army in Iraq in 2004. He also works with the FBI.


'/>"/>

Contact: Toni Baker
tbaker@georgiahealth.edu
706-721-4421
Georgia Health Sciences University
Source:Eurekalert  

Related medicine news :

1. Biomarkers identify acute kidney injury in emergency patients
2. Hopkins researchers find Google Flu Trends a powerful early warning system for emergency departments
3. First study of emergency care for an entire state finds care isnt always local
4. AIUM officially recognizes ACEP Emergency Ultrasound Guidelines
5. Dust storms affect subsequent emergency hospital admissions
6. Trainee earns prestigious emergency medicine research award
7. Patients fare just as well if their nonemergency angioplasty is performed at hospitals
8. Elderly emergency patients less likely to receive pain medication than middle-aged patients
9. IPAL-EM launches to improve palliative care in emergency medicine
10. Loyola nurse practitioner reduces unnecessary emergency department visits
11. How staff perceptions of their roles impact patients experience in the emergency department
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Emergency medicine physicians develop device to stop lethal bleeding in soldiers
(Date:10/13/2017)... ... October 13, 2017 , ... The Visiting Nurse Association ... Featuring a collection of specialty vendors and unique items from across the nation, this ... health and wellness services offered by the VNA. The boutique will be open ...
(Date:10/13/2017)... ... October 13, 2017 , ... Coveros, ... Development, has been awarded a contract by the Center for Medicare and Medicaid ... to accelerate the enterprise use of Agile methodologies in a consistent and high ...
(Date:10/12/2017)... ... 2017 , ... Planet Fitness, one of the largest and fastest growing franchisors ... a flagship location in Covington, LA at 401 N. U.S. Highway 190, in January ... Office Depot in the Holiday Square shopping center. Its location allows it to serve ...
(Date:10/12/2017)... ... October 12, 2017 , ... Information ... we intend to develop to enable prevention of a major side effect of ... loss, especially in pediatric patients. For cisplatin, hearing loss is FDA listed on-label ...
(Date:10/12/2017)... ... 12, 2017 , ... Women-owned and Grand Rapids-based workplace wellness ... in Wellness® by Best and Brightest. OnSite Wellness will be honored at the ... 7:30 a.m. to 2 p.m. at the Henry Autograph Collection Hotel, located at ...
Breaking Medicine News(10 mins):
(Date:10/10/2017)... EXTON, Pa. , Oct. 10, 2017   ... leader in innovative solutions for injectable drug administration, today ... of West,s ID Adapter for improving the intradermal administration ... the Fourth Skin Vaccination Summit in May 2017 by ... Team Lead, Polio Department, World Health Organization (WHO), and ...
(Date:10/5/2017)...  In response to the nationwide opioid epidemic, ... (AAOMS) released prescribing recommendations that urge ibuprofen – ... a first-line therapy to manage a patient,s acute ... Recognizing the value and importance of the ... Acute and Postoperative Pain Management" stresses that practitioners ...
(Date:10/4/2017)...  According to the Centers for Disease Control and Prevention (CDC), ... Urgent Care is helping communities across Massachusetts , ... offering no-cost* flu shots through the end of the month. ... regulations. ... a flu shot is by the end of October, according to the ...
Breaking Medicine Technology: