Preoperative anemia is present in more than 50% of patients undergoing cardiac surgery, which is associated with increased risk of transfusion, increased length of stay in the intensive care unit, and increased incidence of renal failure and mortality. To date, clinical research on perioperative anemia has been focused on finding and treating other underlying causes of anemia, lowering the threshold for transfusion, and performing careful transfusion. However, recently, it was known that hepcidin and erythroferrone are related to iron metabolism and absorption, vitamin D has an inverse correlation with the development of anemia, and is related to hepcidin concentration control. Therefore, in this study, the relationship between vitamin D, hepcidin concentration and perioperative hemoglobin level in patients with off-pump coronary artery bypass graft surgery was investigated together.
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Relationship about pre-operative vitamin D level and recovery of hemoglobin
Timeframe: Up to 1month