Navigation Links
Body Temperature May Matter After Cardiac Arrest

WEDNESDAY, Nov. 7 (HealthDay News) -- Lowering the body temperature of people who have been resuscitated following cardiac arrest may increase their chances of survival, according to a new study.

Researchers also found that cooling cardiac arrest patients could result in greater brain function and the ability to perform normal daily tasks, such as bathing and dressing, after recovery.

During cardiac arrest, the heart suddenly stops working. If a person's heartbeat is restored but they are comatose, treatment may include lowering the patients' body temperature in an attempt to decrease the amount of oxygen they need, to prevent brain damage. In conducting the study, the researchers sought to determine the ideal cooling temperature, which would provide the best outcomes for cardiac arrest patients.

"Since extremely low temperatures below [86 degrees Fahrenheit] are associated with complications, it's critical to know the optimal level of cooling," lead researcher Dr. Esteban Lopez-de-Sa, head of the Cardiac Critical Care Unit and Clinical Cardiology at La Paz University Hospital in Madrid, Spain, explained in a news release from the American Heart Association (AHA). "The aim of the study was to provide initial information for future research about whether controlling hypothermia levels can improve outcome."

The study involved 36 people in Madrid who suffered cardiac arrest outside of the hospital between March 2008 and August 2011. On average, the patients were 64 years old, and 89 percent were men. All of the participants were white.

The participants were randomly assigned to receive cooling treatment to either 89.6 degrees or 93.2 degrees Fahrenheit for 24 hours. The patients were cooled internally with cold saline that was administered through an IV. An internal catheter and temperature-management system also was inserted directly into the main vein from the lower body to the heart. This treatment was followed by gradual rewarming for 12 to 24 hours.

The researchers found that 44 percent of those who were cooled to 89.6 degrees Fahrenheit following cardiac arrest survived without severe brain impairment six months later. In contrast, only 11 percent of those whose body temperature was lowered to 93.2 degrees Fahrenheit had the same outcome.

The findings were presented Tuesday at the AHA's annual meeting in Los Angeles, and also published Nov. 6 in the journal Circulation.

Commenting on the research at an AHA press briefing, Dr. Elliot Antman, a professor of medicine at Harvard Medical School and cardiologist at Brigham and Women's Hospital in Boston, said that when he and other experts at the meeting saw the study results, "our faces lit up because there is very little in the way of randomized trials in the field of resuscitation science."

A randomized trial -- one in which patients are randomly assigned to different treatments for comparison -- is considered a reliable scientific method.

"In the 32 years that I've been caring for patients in the coronary care unit," Antman noted, "this is a very challenging set of patients to have to deal with. Those who've had an out-of-hospital cardiac arrest often have these horrible neurologic outcomes, despite successful resuscitation."

The study is "extremely encouraging" and may "help refine this important therapy for our patients who suffer these very serious events," Antman explained. "We know that cooling is cerebrally protective, but in this era where we really want to do the best we can for patients, we are looking for ways to optimize our therapy," he added.

But Lopez-de-Sa and colleagues stressed that larger studies are needed to confirm if cooling is responsible for improved outcomes among the cardiac arrest patients.

"Although the results suggest a better outcome with lower levels of target temperature, they should be interpreted with caution," noted Lopez-de-Sa, because the association does not prove a cause-and-effect relationship. The results "may be due to multiple factors other than the effect of lower target temperature," he said in the AHA news release.

Roughly 383,000 people suffer cardiac arrest outside of a hospital in the United States every year, according to the AHA. The condition is fatal unless cardiopulmonary resuscitation (CPR) and emergency medical care is provided immediately to restore a normal heartbeat.

More information

The U.S. National Heart, Lung, and Blood Institute has more about treatment for sudden cardiac arrest.

-- Mary Elizabeth Dallas

SOURCES: Elliot Antman, M.D., professor, medicine, Harvard Medical School and cardiologist, Brigham and Women's Hospital, Boston; American Heart Association, news release, Nov. 6, 2012

Copyright©2012 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. MadgeTech, Inc. Develops Temperature Recorder for Harsh Environments
2. Heart Deaths Rise With Extreme Temperatures, Study Finds
3. Mesothelioma Victims Center Now Offers A US Navy Veteran Individual Or Family Dealing With Mesothelioma The Names Of The Best Mesothelioma Attorneys--Quality Matters
4. Mesothelioma Victims Center Urges US Navy Veterans or Anyone with Mesothelioma to Call Them for the Names of the Best Mesothelioma Attorneys in the US-Quality Matters
5. Meditation Method a Matter of Taste
6. The more gray matter you have, the more altruistic you are
7. In muscular dystrophy, what matters to patients and doctors can differ
8. For young adults, appearance matters more than health, MU research suggests
9. Sex matters: Guys recognize cars and women recognize birds best
10. Why home cities matter, refueling willpower, decision speed and moral character, and more
11. Handshakes Matter for First Impressions, Brain Study Confirms
Post Your Comments:
Related Image:
Body Temperature May Matter After Cardiac Arrest
(Date:11/25/2015)... ... November 25, 2015 , ... Wimbledon ... programs, launches new Wimbledon Athletics Facebook page to educate the public, ... unsuspected cardiac abnormalities. About 2,000 people under the age of 25 die from ...
(Date:11/25/2015)... ... 25, 2015 , ... Smiles by Stevens is pleased to announce ... wrinkling. While many patients are aware of the benefits of Botox® in the treatment ... those suffering with discomfort, soreness, and pain as a result of Jaw Tension, TMJ ...
(Date:11/25/2015)... , ... November 25, 2015 , ... ... decades of music, friendships, and learning in its 65th Anniversary Brillianteen Revue, scheduled ... 5-6. , For 65 years, Brillianteen has been a treasured tradition ...
(Date:11/25/2015)... D.C. (PRWEB) , ... November 25, 2015 , ... Today, ... fatalities on our nation’s roadways has dropped below 10,000 for the first time since ... 10,076 in 2013. , According to data released by the National Highway Traffic Safety ...
(Date:11/25/2015)... ... November 25, 2015 , ... ... I found that regular bras were incredibly uncomfortable," said an inventor from Bronx, ... bra." , She developed the patent-pending RECOVERY BRA for added comfort and support. ...
Breaking Medicine News(10 mins):
(Date:11/24/2015)... 2015  Thanks to a donor with a personal ... Center,s Sister Diane Grassilli Center for Women,s Health now ... San Francisco . Fred ... with a gift of $617,320 that allowed the Center ... Tomosynthesis and Whole Breast Ultrasound. Tomosynthesis, three-dimensional (3-D) mammography ...
(Date:11/24/2015)... 24, 2015 /PRNewswire/ - ESSA Pharma Inc. ("ESSA" or ... today that the first patient has been enrolled in ... treatment for metastatic castration-resistant prostate cancer ("mCRPC"). ... --> the United States ... 1/2 clinical trial, ESSA intends to demonstrate the safety, ...
(Date:11/24/2015)... PUNE, India , November 24, 2015 ... new market research report "Spine Biologics Market by Product Type ... Type (Anterior Cervical Discectomy and Fusion, Posterior Lumbar Interbody Fusion), ... by MarketsandMarkets, the global market was valued at $1.90 Billion ... 2020, at a CAGR of 4.4% during the forecast period ...
Breaking Medicine Technology: