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Medical AI Inquiry: You was designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.  Labels: OBJECTIVE, METHODS, METHODS, METHODS, METHODS, RESULTS. Meshes: Adult, Aged, Aged, 80 and over, Analysis of Variance, Blood Loss, Surgical, Blood Transfusion, Blood Volume, Coronary Angiography, Coronary Artery Bypass, Erythrocyte Transfusion, Erythropoiesis, Female, Hemoglobins, Humans, Male, Middle Aged, Retrospective Studies.
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Does blood loss from coronary angiography increase transfusion requirements for coronary artery bypass graft surgery? Context: To determine the blood loss associated with coronary angiography and its impact on hemoglobin and transfusion requirements for subsequent coronary artery bypass graft (CABG) surgery. Retrospective chart review. Tertiary-care, academic medical center. A total of 506 adult patients undergoing coronary angiography and CABG surgery. None (observational study). Coronary angiography was associated with a reduction in hemoglobin of 1.8 g/dL. This reduction in hemoglobin was a significant predictor of allogeneic red blood cell transfusion.
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Coronary angiography contributes to a 1.8 g/dL reduction in hemoglobin concentration before CABG surgery and was associated with increased transfusion of allogeneic blood products. Measures aimed at maintaining red cell volume during coronary angiography, increasing erythropoiesis, or delaying surgery beyond 2 weeks may result in a decrease in transfusion requirements for patients undergoing CABG surgery. Final Decision: yes