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The Annals of Thoracic Surgery, Vol 26, 17-16, Copyright © 1978 by The Society of Thoracic Surgeons

ARTICLES

Transfusion of 2,3 DPG-enriched red blood cells to improve cardiac function

RC Dennis, HB Hechtman, RL Berger, L Vito, RD Weisel and CR Valeri

Attempts were made to enhance oxygen availability in patients undergoing coronary artery bypass operations by transfusing red blood cells enriched in 2,3 diphosphoglycerate (2,3 DPG) to 150% of normal. In this study of 22 patients, 11 received red blood cells with high 2,3 DPG levels and 11 received red blood cells with 70% of normal 2,3 DPG levels (control). Immediately following cardiopulmonary bypass the 11 patients who received high 2,3 DPG red blood cells had a P50 value of 31.6 mm Hg; the value in control patients was 28.3 mm Hg (p less than 0.05). Oxygen consumption values were 135 and 106 ml/min/m2, respectively (p less than 0.05). Mixed venous oxygen tensions were similar in the two groups, but the arteriovenous content difference was higher in the high 2,3 DPG group (p less than 0.05). Cardiac indices increased significantly in response to a fluid load in the high 2,3 DPG group compared with controls at comparable filling pressures. We believe the improved myocardial performance in response to a fluid challenge is a result of increased oxygen availability.


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Circulation of Red Blood Cells Having High Levels of 2,3-Bisphosphoglycerate Protects Rat Brain From Ischemic Metabolic Changes During Hemodilution
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[Abstract] [Full Text]


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Copyright © 1978 by The Society of Thoracic Surgeons.