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:12/22/2014)... 2014 The MedTech industry is gearing up ... owned subsidiary of PartnerTech AB of Sweden, is prepared to ... additional ISO Certification. , All signs point to growth in ... likelihood of a repeal of the excise tax originally levied ... is anticipating annual growth of 9.3% and PartnerTech Inc. is ...
(Date:12/22/2014)... Luxury Linen purveyor Peacock Alley once again joined ... logistics and support for one of Dallas’ largest holiday toy ... of giving back to the community in which it lives ... were Whataburger® and 99.5 The Wolf. , There is no ... to children who would otherwise not receive any is a ...
(Date:12/22/2014)... DC (PRWEB) December 22, 2014 ... its year-long, professional development programs this month. Faculty ... which focuses on nurse educators fast-tracked for administrative ... the Leadership Development Program for Simulation Educators, featuring ... specialized area of nursing education. , Twenty ...
(Date:12/21/2014)... Weddingshe.com, an outstanding online supplier of wedding ... its new selection of Cocktail Dresses for the winter ... the newest fashion trends. , “We take ... parties . All of them are offered at greatly ... making every effort to offer a nice shopping experience ...
(Date:12/21/2014)... New York (PRWEB) December 21, 2014 ... and other product liability claims involving a class ... mimetics continue to move forward in a federal ... Southern District of California, Bernstein Liebhard LLP reports. ... Court has established a data cut-off date of ... Breaking Medicine News(10 mins):Health News:PartnerTech Inc. Poised for Growth in MedTech 2Health News:Peacock Alley and Community Partners of Dallas Fulfill an Estimated 12,000 Holiday Wishes for Deserving Children 2Health News:NLN Leadership Institute Announces 2015 Cohorts 2Health News:NLN Leadership Institute Announces 2015 Cohorts 3Health News:Stunning Cocktail Party Dresses from Weddingshe.com 2Health News:Byetta Lawsuit News: New Order Issued in Federal Incretin Mimetics Litigation, Bernstein Liebhard LLP Report 2Health News:Byetta Lawsuit News: New Order Issued in Federal Incretin Mimetics Litigation, Bernstein Liebhard LLP Report 3Health News:Byetta Lawsuit News: New Order Issued in Federal Incretin Mimetics Litigation, Bernstein Liebhard LLP Report 4
(Date:12/19/2014)... Hospira, Inc. (NYSE: HSP ... infusion technologies, today announced that the company will present ... Wednesday, Jan. 14, 2015, in San Francisco. ... 10:30 a.m. Pacific time on Wednesday, Jan. 14, 2015. ... a live audiocast accessible via the Investor Relations section ...
(Date:12/19/2014)... Texas , December 18, 2014 ... networked software application/module that is used to store, ... images. RIS comprises a patient tracking and scheduling ... The integration of RIS with HIS and other ... for patient registration and patient scheduling, patient list ...
(Date:12/19/2014)... -- Capnia, Inc. (NASDAQ: CAPN ), ... on its proprietary Sensalyze™ Technology Platform for precision ... for the third quarter and nine months ended ... of our initial public offering (IPO), we are ... CoSense® commercial launch," said Anish Bhatnagar, M.D., Chief ... Breaking Medicine Technology:The Global Radiology Information Systems Market is Expected to Grow at a CAGR of 7.5% from 2014 to 2019 2The Global Radiology Information Systems Market is Expected to Grow at a CAGR of 7.5% from 2014 to 2019 3Capnia Reports Third Quarter 2014 Financial Results 2Capnia Reports Third Quarter 2014 Financial Results 3Capnia Reports Third Quarter 2014 Financial Results 4Capnia Reports Third Quarter 2014 Financial Results 5Capnia Reports Third Quarter 2014 Financial Results 6Capnia Reports Third Quarter 2014 Financial Results 7Capnia Reports Third Quarter 2014 Financial Results 8