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:6/26/2016)... ... , ... PawPaws brand pet supplements owned by Whole Health Supply ... health of felines. The formula is all-natural and is made from Chinese herbs that ... Cat Kidney Support Supplement Soft Chews are Astragalus Root Extract and Rehmannia Root ...
(Date:6/25/2016)... ... June 25, 2016 , ... Experts from the ... AcademyHealth’s Annual Research Meeting June 26-28, 2016, at the Hynes Convention Center in ... topics including advance care planning, healthcare costs and patient and family engagement. , ...
(Date:6/25/2016)... ... 25, 2016 , ... "With 30 hand-drawn hand gesture animations, FCPX users can ... CEO of Pixel Film Studios. , ProHand Cartoon’s package transforms over 1,300 hand-drawn ... X . Simply select a ProHand generator and drag it above media or text ...
(Date:6/25/2016)... (PRWEB) , ... June 25, 2016 , ... ... athletes and non-athletes recover from injury. Recently, he has implemented orthobiologic procedures as ... City area —Johnson is one of the first doctors to perform the treatment. ...
(Date:6/24/2016)... ... June 24, 2016 , ... A recent article ... are unfamiliar with. The article goes on to state that individuals are now more ... these less common operations such as calf and cheek reduction. The Los Angeles area ...
Breaking Medicine News(10 mins):
(Date:6/24/2016)... -- Research and Markets has announced the addition ... report to their offering. ... The World Market for Companion Diagnostics covers the world ... in the report includes the following: , ... by Region (N. America, EU, ROW), 2015-2020 , World ...
(Date:6/23/2016)... June 23, 2016  MedSource announced today that ... e-clinical software solution of choice.  This latest decision ... value to their clients by offering a state-of-the-art ... relationship establishes nowEDC as the EDC platform of ... full-service clients.  "nowEDC has long been a preferred ...
(Date:6/23/2016)... , June 23, 2016 Roche (SIX: ... 510(k) clearance for its Elecsys BRAHMS PCT (procalcitonin) assay ... sepsis or septic shock. With this clearance, Roche is ... a fully integrated solution for sepsis risk assessment and ... with bacterial infection and PCT levels in blood can ...
Breaking Medicine Technology: