Abstract
Objective To evaluate the blood-saving effect of acute hypervolemic hemodilution (AHH) with 6％ hydroxyethyl starch 130/0.4 (HES 130/0.4) in preschool children.Methods Forty ASA Ⅰ patients,aged 3-6 yr,weighing 11.5-22.5 kg,with body height of 78-120 cm,scheduled for orthopedic or general surgeries,were divided into 2 groups by drawing lots:group AHH (n =20) and group control (n =20).6％HES 130/0.4 10 ml/kg was infused over 30 min at a rate of 0.3 ml·kg-1 · min-1 through the internal jugular vein before surgery in group AHH.The fluid balance,blood loss,urine output and blood transfusion during operation were recorded.The blood routine,liver and kidney function and coagulation function (prothrombin time (PT),activated partial thromboplastin time (APTT),fibrinogen (Fib)) were measured before AHH (T0) and at 0,4 and 24 h after AHH (T1-3).Hypokalemia,hypocalcemia and prolongation of PT and APTT during surgery,and pulmonary edema,heart failure and abnormal bleeding from the site in the wound during the perioperative period were recorded.Results The two groups were comparable with regard to the volume of multiple electrolyte solution consumed,blood loss,parameters of liver and kidney function,platelet count and incidences of hypokalemia and hypocalcemia (P ＞ 0.05).The urine output was significantly increased,Hct at T1 and Fib at T1,2 were significantly decreased,PT and APTT were prolonged,and the percentage of patients without allogeneic blood transfusion and incidences of prolongation of PT and APTT were significantly increased in group AHH as compared with group C (P ＜ 0.05).No pulmonary edema,heart failure and abnormal bleeding were found during the perioperative period.Conclusion AHH with 6％ HES 130/0.4 10 ml/kg provides better blood-saving effect in preschool children,has little effect on the internal environment,but prolongs the coagulation time and exerts effect on coagulation function to some extent. Key words: Hetastarch; Child, preschool; Hemodilution
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