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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: Age Factors, Aged, Blood Transfusion, Body Height, Body Surface Area, Body Weight, Chi-Square Distribution, Coronary Artery Bypass, Erythrocyte Transfusion, Erythrocyte Volume, Female, Follow-Up Studies, Hematocrit, Humans, Intraoperative Care, Length of Stay, Logistic Models, Male, Plasma, Platelet Transfusion, Retrospective Studies, Sex Factors, Time Factors.
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Is gender an essential determinant of blood transfusion in patients undergoing coronary artery bypass graft procedure? Context: To determine factors that account for gender difference in the need for blood transfusion in coronary artery bypass graft (CABG) patients. Retrospective study of consecutive patients. Anesthesiology department of a teaching hospital. 253 CABG patients (163 males and 90 females). Packed red blood cells (PRBCs), platelets, and fresh frozen plasma (FFP) were transfused depending on the need of each patient. For each patient, we recorded the gender, age, weight, height, body surface area (BSA), and duration of surgery. Hematocrit (Hct) levels prior to surgery, end of surgery, and at discharge from the hospital were recorded. PRBC administration and use of FFP and platelets were noted. Differences between the data for female and male patients were evaluated using Student's t-test, Chi-square test, and regression analysis. Approximately 60% female and only 20% male patients received PRBCs intraoperatively, whereas 78% females and only 43% males received PRBCs during their entire hospital stay. On average, females received 1.20 units of PRBCs intraoperatively and 2.38 units during the entire hospital stay, while the males received 0.31 units and 1.36 units for similar periods. Gender differences in PRBC transfusion persisted even when females and males were compared within the same subgroups for age, weight, duration of surgery, and preoperative Hct. PRBC units given intraoperatively had a significant correlation with age and preoperative Hct in females, but they had a significant correlation with age, preoperative Hct, and duration of surgery in males. PRBCs given during the entire hospital stay, however, had significant correlation with age, preoperative Hct, and duration of surgery in both females and males. Multiple logistic regression analysis showed that the probability of a patient receiving or not receiving PRBC transfusion is significantly influenced by age, preoperative PRBC mass, duration of surgery, and gender.
assistant
Gender is an independent essential determinant of blood transfusion in CABG patients, and it may interact with age, weight, preoperative Hct, duration of surgery, and other factors in determining the probability of transfusion. Final Decision: yes