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Complications can be Reduced by Decreasing Need for Blood Transfusion During Aortic Valve Replacement

by Kathy Jones on January 2, 2014 at 9:46 PM
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 Complications can be Reduced by Decreasing Need for Blood Transfusion During Aortic Valve Replacement

A study in the January 2014 issue of The Annals of Thoracic Surgery suggests that the likelihood of transfusion-related complications can be reduced by incorporating a blood conservation strategy (BCS) during aortic valve replacement (AVR).

Blood-product transfusions are often used during cardiac surgery to offset the morbidity and mortality associated with anemia. Cardiac operations utilize nearly 20% of the blood supply in the United States and worldwide, with up to 50% of cardiac surgery patients receiving blood products.


Researchers from NYU Langone Medical Center in New York City, led by David W. Yaffee, MD, and Eugene A. Grossi, MD, examined the impact of a BCS on patient outcomes following AVR.

"Implementation of blood conservation strategies can be safely completed for AVR patients while helping to limit unnecessary transfusion, avoiding transfusion-associated complications and decreasing costs," said Dr. Yaffee.

The authors reviewed clinical and transfusion records of patients undergoing AVR before (391 patients) and after (387 patients) BCS implementation to determine if BCS had an impact on patient morbidity, mortality, or blood product utilization.

They found no difference in mortality or major complications between the two groups; however, major complications (renal failure, respiratory failure, sepsis, or death) occurred more frequently in patients who received two or more units of red blood cells. Gastrointestinal complications, renal failure requiring dialysis, and respiratory failure were also more common among patients receiving two or more units of red blood cells.

The Society of Thoracic Surgeons (STS) and the Society of Cardiovascular Anesthesiologists (SCA) have released clinical practice guidelines on blood conservation; however the guidelines have been applied mainly to coronary artery bypass grafting surgery.

"Our results suggest that the Blood Conservation Clinical Practice Guidelines already developed by STS and SCA for coronary artery bypass patients can be safely extended to patients undergoing aortic valve surgery," said Dr. Grossi. "While some patients do require transfusion for a safe operation, this study shows that we can limit transfusions without causing harm to the patient."

For a copy of the study, contact Cassie Brasseur at 312-202-5865 or cbrasseur@sts.org.

Founded in 1964, The Society of Thoracic Surgeons is a not-for-profit organization representing more than 6,800 cardiothoracic surgeons, researchers, and allied health care professionals worldwide who are dedicated to ensuring the best possible outcomes for surgeries of the heart, lung, and esophagus, as well as other surgical procedures within the chest. The Society''s mission is to enhance the ability of cardiothoracic surgeons to provide the highest quality patient care through education, research, and advocacy.

The Annals of Thoracic Surgery is the official journal of STS and the Southern Thoracic Surgical Association.

Source: Newswise

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