Navigation Links
Heart has enough oxygen to survive hypothermia, CPR crucial

t CPR should continue on hypothermic patients until after they have returned to normal temperature, Tveita advised.

Body shuts down

As the body cools, the metabolism slows, reducing the need for oxygen. Limited blood circulation is directed to vital organs, including the brain, heart and kidneys, but not to non-vital organs such as the muscles, skin and periphery.

When hypothermia victims arrive in the emergency room, they are unresponsive and may have only one or two respirations per minute, compared to the 10-15 per minute that is normal. Doctors often cannot even detect a peripheral pulse to determine whether the heart is beating, Tveita said. In fact, victims of hypothermia may appear to be dead, even when they are not.

Understanding the body's physiological response to hypothermia became a popular research topic 40 years ago, when doctors wanted to use hypothermia during heart surgery. In fact, doctors did learn to use hypothermia to reduce oxygen consumption, to induce cardiac standstill and to restart the heart by rewarming, Tveita noted.

But research on hypothermia dropped off markedly after the surgical application was established. However, deaths from accidental hypothermia continue, and not just in the coldest climes. Tveita recalled the recent case of a person in a warmer climate who became hypothermic after being swept out to sea on a cold current.

Rats serve as model

"In this study, we wanted to find out if there are problems with low blood pressure, low pulse, low cardiac output (the volume of blood the heart can pump per minute), or with oxygen transport to the cells," Tveita said. In particular, the research team wanted to know if insufficient circulation leads to inadequate oxygen supply to the heart cells, which in turn leads to heart failure.

The researchers divided anesthetized rats into three groups: two hypothermic groups and a control group. They exposed one
'"/>

Source:American Physiological Society


Page: 1 2 3 4

Related biology news :

1. HIV Patients May Be at Risk of Heart Problems When Taking Protease Inhibitor Drugs
2. Implanted Devices Detect High-Risk Heart Failure Patients
3. Rush Physicians Using Gene Therapy For Heart Patients With Moderate To Severe Chest Pains Who Do Not Benefit From Other Treatments
4. Special Imaging Study Shows Failing Hearts Are Energy Starved
5. Stem Cell Research Shows Potential for Replacing Tissue Damaged in Heart Attacks
6. Heart repair gets new muscle
7. Male Combat Veterans Rank High In Heart Disease Risk
8. Newly Discovered Role for Heart Response Enzyme May Yield Better Heart Failure Therapy
9. Researchers Find Drug May Give Some Cardiac Protection 24 Hours After Heart Attack
10. Heart-healthy compound in chocolate identified
11. Heart smart: new drug improves blood flow
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Heart has enough oxygen survive hypothermia CPR crucial

(Date:7/31/2015)... China , 31. Juli 2015 Die 10. ... wird von BGI veranstaltet und findet vom 22. ... China , statt. Die ... Seit ihrem Start 2006 ist die ICG weltweit ... „omik" geworden. Sie ist eines der dynamischsten, enthusiastischsten ...
(Date:7/27/2015)... , July 27, 2015   Zynx ... and experience-based clinical improvement solutions, today announced that ... is now available on Android smartphones and tablets. ... and post-care organizations can use ZynxCarebook to securely ... patient,s condition, streamline care transitions to other care ...
(Date:7/21/2015)... YORK , July 21, 2015 ... systems, as seen in the recent U.S. Office ... a solution to the infosec conundrum, but developers ... is stored. To address this dilemma, Biometrics-as-a-Service provider ... its Biometric Tokenization SDK for third party integration. ...
Breaking Biology News(10 mins):Die 10. internationale Konferenz zu Genomik (ICG-10) beginnt im Oktober 2Die 10. internationale Konferenz zu Genomik (ICG-10) beginnt im Oktober 3Zynx Health Adds Android Device Support to ZynxCarebook Solution 2Zynx Health Adds Android Device Support to ZynxCarebook Solution 3HYPR Corp. Launches Industry First Biometric Tokenization Platform 2HYPR Corp. Launches Industry First Biometric Tokenization Platform 3HYPR Corp. Launches Industry First Biometric Tokenization Platform 4
... intriguing evidence to support the theory that old cells ... scientists showed that as these animals age, the number ... Over time, cells lose their ability to divide, a ... in an advanced online edition of Science, is the ...
... of Queensland report in the journal Genome Research ... conspicuously devoid of ubiquitous mobile DNA elements called transposons. ... among mammalian species and are enriched in genes crucial ... called "jumping genes," are DNA sequences that have the ...
... deaths from SIDS (sudden infant death syndrome) in African Americans ... of those deaths result from a common genetic variation that ... during times of environmental stress, a research team based at ... of the Journal of Clinical Investigation. , Children with ...
Cached Biology News:Aging cells, aging body: Fresh evidence for a connection 2Where 'jumping genes' fear to tread 2Gene variation increases SIDS risk in African Americans 2Gene variation increases SIDS risk in African Americans 3
(Date:7/29/2015)... SYDNEY , July 29, 2015 US-Australian ... NVGN ) today confirmed it is committed to progressing ... as soon as practicable and to ensure the Company ... Chief Executive Officer, Iain Ross , said the ... including the lead pre-clinical programs, discovery programs and academic ...
(Date:7/29/2015)... - BioAmber Inc. (NYSE: BIOA ) today announced that ... has resigned.  The Company has hired Andrew Ashworth ... December 2014, as full time interim CFO and has ... Andy Ashworth began his employment today, to ... Andy was the Company,s CFO from September 2011 to ...
(Date:7/29/2015)... SAN FRANCISCO , July 29, 2015 /PRNewswire/ ... trialling mobile molecular testing for applications in food ... Ubiquitome,s hand-held, battery powered real-time PCR device, the ... the farm right through to the supermarket shelf ... world. This includes involvement in animal disease control ...
(Date:7/29/2015)... Research and Markets ... the "Global Biosimilars Market, 2015 - 2025" ... Global Biosimilars Market, 2015 - 2025, report provides ... market. With the blockbuster biologics losing patent protection ... are being viewed as viable substitutes to the ...
Breaking Biology Technology:Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 2Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 3Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 4Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 5Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 6Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 7Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 8Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 9Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 10BioAmber Announces Change in Chief Financial Officer 2BioAmber Announces Change in Chief Financial Officer 3AsureQuality and Ubiquitome Partner on Applications for Mobile Molecular Food Safety Testing 2Global Biosimilars Market to 2025: Monoclonal Antibodies (mAbs), Insulin, Interferons, G-CSF/ GM-CSF, Erythropoietins and Others 2Global Biosimilars Market to 2025: Monoclonal Antibodies (mAbs), Insulin, Interferons, G-CSF/ GM-CSF, Erythropoietins and Others 3
... combines two important surgical tools: Baxter,s ... human thrombin and Pfizer,s ... today announced the Food and Drug Administration approval of,GELFOAM(R) ... GELFOAM Plus is the only available hemostasis kit that ...
... ... Delivery Fleet, LONG ISLAND CITY, N.Y., Dec. 17 FreshDirect, ... today,announced that it has signed a contract with Tri-State Biodiesel to ... of 150 delivery trucks will start the switch to B5, a,blend ...
... Dec. 17 HHS Secretary Mike,Leavitt today announced ... The NBSB will provide expert advice and guidance ... of special interest to,the department regarding activities to ... of public health emergencies resulting from current,and future ...
Cached Biology Technology:Baxter Announces FDA Approval of GELFOAM(R) Plus Hemostasis Kit 2Baxter Announces FDA Approval of GELFOAM(R) Plus Hemostasis Kit 3Baxter Announces FDA Approval of GELFOAM(R) Plus Hemostasis Kit 4FreshDirect's Fleet Goes Biodiesel 2FreshDirect's Fleet Goes Biodiesel 3HHS Secretary Leavitt Announces Members of the National Biodefense Science Board 2HHS Secretary Leavitt Announces Members of the National Biodefense Science Board 3HHS Secretary Leavitt Announces Members of the National Biodefense Science Board 4HHS Secretary Leavitt Announces Members of the National Biodefense Science Board 5
Protein YIPF6 (YIP1 family member 6). [Source:Uniprot/SWISSPROT;Acc:Q96EC8] Antigen: Recombinant Protein Epitope Signature Tag (PrEST)....
... This product is designed to deparaffinize ... on formalin fixed paraffin-embedded tissue sections mounted ... by melting the paraffin at the high ... along with emulsification of the paraffin by ...
NEWBORN CALF SERUM AND PLASMA...
...
Biology Products: