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Effect of blood transfusion on long-term survival after cardiac operation.

The authors studied a database of 1,915 patients who underwent isolated first time myocardial revascularization between 1994 and 1997 and found that blood transfusions during or after coronary artery bypass operations were associated with increased long-term mortality (risk ratio = 1.7; 95% confidence interval = 1.4 to 2.0). This retrospective database analysis is important and […]