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Columbia study shows how doctors may manage blood glucose levels during heart surgery

NEW YORK/ATLANTA, October 24, 2005 An anesthesiology research team at Columbia University Medical Center have completed the first human study to show that aprotinin, a protease inhibitor, was associated with lower blood glucose levels during coronary artery bypass graft (CABG) surgery.

The research presented today at the American Society of Anesthesiologists 2005 Annual Meeting in Atlanta, Ga., showed that CABG patients receiving aprotinin had 24 percent lower blood glucose levels and a decrease in perioperative insulin resistance compared to patients not receiving aprotinin.

The association of aprotinin with reduced glucose levels during CABG surgery is an important finding for diabetic patients. Over a half million patients undergo cardiac surgery in the United States every year.[1] Among these patients, one third of them have diabetes and many others are likely to be obese or suffer from impaired glucose tolerance, which are often precursors to diabetes. [2],[3] For diabetic patients undergoing CABG surgery, abnormally high levels of blood glucose can lead to serious complications including cardiac disease, renal dysfunction, and retina damage as well as an increased risk of infections of up to 86 percent.[4]

For all patients undergoing CABG surgery both with and without diabetes elevated glucose levels during the surgery have also been associated with longer hospital stays and increased hospitalization costs.

"We are very enthusiastic about these results as our ultimate research goal is to study if aprotinin leads to better outcomes in diabetic patients undergoing CABG surgery," said Robert J. Frumento, Ph.D., lead investigator of the study and researcher at the department of anesthesiology at Columbia University Medical Center. "The next step will be to conduct a larger, randomized trial on non-diabetic patients before expanding studies to the more vulnerable diabetic patient population. We believe that aprotinin may hol
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Contact: Elizabeth Streich
eas2125@columbia.edu
212-305-6535
Columbia University Medical Center
24-Oct-2005


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