Receiptents of nanotechnology funding from the National Nanotechnology Initiative.
DURHAM, N.C. -- When physicians routinely "thin" the blood of patients undergoing coronary artery bypass surgery in order to place them on the heart-lung machine, they may be causing more damage to the kidneys and other organs than previously appreciated, according to a new study by Duke University Medical Center researchers.
For years moderate dilution of the blood has been thought to protect the kidneys from damage, but the Duke researchers found in their study of more than 1,400 bypass patients that dilution to the lower levels of accepted ranges is associated with measurable kidney damage. The Duke team published the results of its study in the September 2003 issue of the Annals of Thoracic Surgery.
In order to safely operate on a non-beating heart, physicians attach the body to a heart-lung machine, which takes over for the stopped heart in circulating oxygen-rich blood throughout the body. To prime the pump, physicians add fluid -- usually a balanced saline solution -- to the circuit to fill the tubing and pumping chambers of the machine.
This additional fluid lowers the percentage of oxygen-carrying red blood cells in the blood, a measurement known as hematocrit. Normal hematocrit ranges from 36 to 40 percent. During bypass surgeries, the hematocrit can range from 22 to 26 percent, with even lower percentages being commonly attained at different points during the operation.
"Using hematocrit as a tool to assess a patient's anemia, we found that the lowest hematocrit achieved during the bypass procedure was significantly associated with acute kidney damage," said Duke anesthesiologist and study leader Mark Stafford-Smith, M.D. "Furthermore, we fPage: 1 2 3 4
Contact: Richard Merritt
Duke University Medical Center
Related medicine news :
1. Blood pressure treatment could cut risk of strokes and heart attacks
2. Blood protein predicts risk of heart attack
3. Blood transplants may be more harmful than bone marrow transplants in pediatric leukemia patients
4. Blood pressure drugs may slow deterioration of Alzheimers
5. Blood pressure control poor in elderly, says Northwestern researcher
6. Blood pressure for children and adolescents on the rise
7. Blood pressure drug helps delay ischemic brain damage in stroke patients
8. Blood screen may help cancer patients thwart radiation side effects, say Stanford researchers
9. Blood test for liver cancer risk
10. Blood-forming stem cells fail to repair heart muscle in Stanford study
11. Blood test heralds speedy stroke diagnoses
(Date:11/23/2014)... 2014 To show thanks to new and ... of white evening dresses for weddings. Customers who ... , iFitDress.com is a distinguished dress manufacturer, and it is ... worldwide customers for a very long time. The CEO of ... customer will be able to buy not only a beautiful ...
(Date:11/23/2014)... AngelWeddingDress.com has recently updated its online store, offering ... “If you are looking for gorgeous beach wedding dresses ... Here you can enjoy 70% off discounts and all ... big marriage ceremony is the most important dream of ... is uppermost priority. Ophelia, one of customers, said, “I ...
(Date:11/23/2014)... The FDA is Watching: , What ... Webinar**, Dec. 11, 2014 ? Any Time at Your ... on promotional activities is no longer limited to magazine ... at websites, Twitter, journal articles, TV appearances, Facebook and ... 11, for On-Demand access to Timothy Ayers and Michelle ...
(Date:11/23/2014)... 2014 BambooFlooringChina.com , the world’s leader ... strand woven bamboo flooring collection. Now, the business is ... company’s CEO, the promotion is valid until Dec. 20, 2014. ... a smooth and dust-free surface, which makes it very easy ... industry, the company wants to make its website the best ...
(Date:11/22/2014)... Sc (PRWEB) November 23, 2014 A ... opened its doors in the downtown Greenville area. Dr. ... Downtown Greenville , decided to open her own clinic ... amazing results with the patients. , AlignLife believes ... proper tools. With a focus on chiropractic care and ... Breaking Medicine News(10 mins):Health News:iFitDress.com: Wonderful White Evening Dresses Now Available 2Health News:Beach Wedding Dresses Added to Outstanding Online Dress Company AngelWeddingDress.com 2Health News:FDAnews Announces The FDA is Watching: What Twitter, Tradeshows and TV Have in Common, On-Demand Webinar, Dec. 11, 2014 2Health News:FDAnews Announces The FDA is Watching: What Twitter, Tradeshows and TV Have in Common, On-Demand Webinar, Dec. 11, 2014 3Health News:FDAnews Announces The FDA is Watching: What Twitter, Tradeshows and TV Have in Common, On-Demand Webinar, Dec. 11, 2014 4Health News:FDAnews Announces The FDA is Watching: What Twitter, Tradeshows and TV Have in Common, On-Demand Webinar, Dec. 11, 2014 5Health News:Click Strand Woven Bamboo Flooring From Famous Bamboo Flooring Company BambooFlooringChina.com 2Health News:AlignLife of Downtown Greenville is Now Open and Accepting New Patients 2
(Date:11/21/2014)... , Nov. 20, 2014 Depomed, Inc. (NASDAQ: ... the Piper Jaffray 26 th Annual Healthcare Conference in ... the Piper Jaffray conference is scheduled for 8:00 am EST (5:00 ... webcast, and the webcast can be accessed via the Investor Relations ... of the webcast will be archived for 30 days on the ...
(Date:11/21/2014)... Nov. 20, 2014 Oxis International, Inc. (OXIS) (OXI.PA) ... election of Anthony J. Cataldo as Chief Executive ... Effective November 19, 2014, Ken Eaton resigned his ... of Directors of Oxis International, Inc. to pursue new opportunities. ... named Chief Executive Officer of Oxis International, Inc. Mr. Cataldo ...
(Date:11/21/2014)... Texas , Nov. 21, 2014 Lexicon Pharmaceuticals, ... pricing of its previously announced underwritten public offering of ... an effective shelf registration statement. The offering will consist ... offering price of $1.005 per share. Lexicon has also ... to 7,462,687 additional shares of common stock. All of ... Breaking Medicine Technology:Depomed To Present At Piper Jaffray 26th Annual Healthcare Conference 2OXIS International, Inc. announces Changes in Management Team 2OXIS International, Inc. announces Changes in Management Team 3Lexicon Announces Pricing Of Common Stock Offering 2Lexicon Announces Pricing Of Common Stock Offering 3