Featured Research

from universities, journals, and other organizations

Warming Surgery Patients Reduces Fatal Heart Risks

Date:
April 8, 1997
Source:
Johns Hopkins Medical Institutions
Summary:
Keeping surgery patients warm is a simple and inexpensive way to significantly reduce the risk of heart complications, the leading cause of post-operative death, a Johns Hopkins study suggests.

April 8, 1997

Keeping surgery patients warm is a simple and inexpensive way to significantlyreduce the risk of heart complications, the leading cause of post-operative death, a JohnsHopkins study suggests.

Maintaining a surgical patient's normal body temperature has been shown to reduceinfections, speed healing and shorten hospital stays, but this is the first prospective clinicaltrial to show it also reduces the chance of serious heart injury, says Steven M. Frank, M.D.,lead author and an associate professor of anesthesiology and critical care medicine.

Results are published in the April 9 issue of the Journal of the American MedicalAssociation and discussed in an accompanying editorial.

Most patients experience hypothermia, or lowered body temperature, during majorsurgery because of anesthesia, chilly operating rooms, open body cavities, intravenousfluids and blood infusions. While cool operating rooms keep surgeons comfortable andprovide patients with some benefits such as slowing metabolism, hypothermia also boostspatients' stress hormones, constricts blood vessels and raises blood pressure. Thiscardiovascular stress may trigger serious heart problems.

Researchers studied 300 non-cardiac surgery patients who underwent abdominal,chest or vascular surgery. All patients were above age 60 with coronary artery disease orother risk factors for coronary disease. Body temperature was kept near normal withwarming methods in 142 patients, while 158 patients received routine care which resulted inmild hypothermia.

Results suggest a 55 percent risk reduction in cardiac complications when nearnormal body temperature is maintained, particularly immediately after surgery. Heart attack, cardiac arrest or unstable angina occurred in 1.4 percent of the warmer groupcompared to 6.3 percent in the group whose body temperatures were kept at traditionallevels.

Also, ventricular tachycardia, or an abnormally fast heart beat, occurred in 2 percentof the warmer group versus 8 percent in the cooler group. A similar number of patients inboth groups had a rapid heart beat during surgery, but heart beat irregularities after surgerywere more common in the lower body-temperature group.

"An estimated 25 million Americans have risk factors for heart disease, and ourfindings show they will benefit from active warming during surgery," says Frank.

Body temperature was kept near normal by warming intravenous fluids andsurrounding patients with a blanket that fills with warm air during and after surgery.Routine body-temperature care also included warming intravenous fluids, but patients werecovered only with paper drapes during surgery and cotton blankets after surgery.

Other Hopkins authors of the study, supported by the National Institutes of Healthand Mallinckrodt Medical, Inc., were Lee A. Fleisher, M.D.,Michael J. Breslow, M.D.,Krista F. Olson, B.S.E., and Susan Kelly, B.S.N. Vanderbilt University Medical Centerparticipated in the study.

--JHMI--

Johns Hopkins Medical Institutions' news releases are available on a PRE-EMBARGOED basison EurekAlert at http://www.eurekalert.org and from the Office of Communications and PublicAffairs' direct e-mail news release service. To enroll, call 410-955-4288 or send e-mail tobpalevic@welchlink.welch.jhu.edu or 76520.560@compuserve.com.

On a POST-EMBARGOED basis find them at http://hopkins.med.jhu.edu,http://infonet.welch.jhu.edu/news/news_releases, Newswise at http://www.ari.net/newswise oron CompuServe in the SciNews-MedNews library of the Journalism Forum under file extension".JHM", Quadnet at http://www.quad-net.com or ScienceDaily at http://www.sciencedaily.com.


Story Source:

The above story is based on materials provided by Johns Hopkins Medical Institutions. Note: Materials may be edited for content and length.


Cite This Page:

Johns Hopkins Medical Institutions. "Warming Surgery Patients Reduces Fatal Heart Risks." ScienceDaily. ScienceDaily, 8 April 1997. <www.sciencedaily.com/releases/1997/04/970408154353.htm>.
Johns Hopkins Medical Institutions. (1997, April 8). Warming Surgery Patients Reduces Fatal Heart Risks. ScienceDaily. Retrieved July 28, 2014 from www.sciencedaily.com/releases/1997/04/970408154353.htm
Johns Hopkins Medical Institutions. "Warming Surgery Patients Reduces Fatal Heart Risks." ScienceDaily. www.sciencedaily.com/releases/1997/04/970408154353.htm (accessed July 28, 2014).

Share This




More Health & Medicine News

Monday, July 28, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Trees Could Save More Than 850 Lives Each Year

Trees Could Save More Than 850 Lives Each Year

Newsy (July 27, 2014) A national study conducted by the USDA Forest Service found that trees collectively save more than 850 lives on an annual basis. Video provided by Newsy
Powered by NewsLook.com
Google's Next Frontier: The Human Body

Google's Next Frontier: The Human Body

Newsy (July 27, 2014) Google is collecting genetic and molecular information to paint a picture of the perfectly healthy human. Video provided by Newsy
Powered by NewsLook.com
What's To Blame For Worst Ebola Outbreak In History?

What's To Blame For Worst Ebola Outbreak In History?

Newsy (July 27, 2014) A U.S. doctor has tested positive for the deadly Ebola virus, as the worst-ever outbreak continues to grow. Video provided by Newsy
Powered by NewsLook.com
Losing Sleep Leaves You Vulnerable To 'False Memories'

Losing Sleep Leaves You Vulnerable To 'False Memories'

Newsy (July 27, 2014) A new study shows sleep deprivation can make it harder for people to remember specific details of an event. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins