Definitive Global Transfusion Study Supports Patient Safety, Positive Patient Outcomes (image) St. Michael's Hospital Share Print E-Mail Caption Lower thresholds for blood transfusions during cardiac surgery have proven to be safe and provide good patient outcomes compared to traditional thresholds, according to the largest research study ever performed in this area. The findings were presented Sunday at the American Heart Association's annual meeting in Anaheim. Calif., by Dr. David Mazer, an anesthesiologist at St. Michael's Hospital and associate scientist in its Keenan Research Centre for Biomedical Science. They were published simultaneously in the New England Journal of Medicine. Credit Courtesy of St. Michael's Hospital Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.