PURPOSE: This clinical trial reports the use of hydroxyethyl starch (HES70/0.55/4) at very high dosages during surgery. HES70/0.55/4 has the lowest molecular weight among all HES products, and thus may have the least side effects. This observational retrospective study clarified the effects of high-dose HES70/0.55/4 on coagulation and renal function up to 1 month after massive bleeding during surgery. METHODS: Of 20875 patients on our surgical database, 31 patients were identified who had lost more than 5000 ml of blood during surgery and had survived for more than 1 month. The fluid balance, and pre- and postoperative laboratory data were analyzed. Patients were assessed using acute kidney injury (AKI) criteria. AKI and non-AKI groups were compared regarding volume of HES70/0.55/4 infused and serum creatinine (Cr) levels before surgery and until 1 month after surgery. RESULTS: The mean volumes of blood loss, total transfusions, HES70/0.55/4, and urine output during surgery were 8051 ml; 5765 ml; 3085 ml (54 ml/kg); and 1338 ml (2.7 ml/kg/h), respectively. Cr increased, and activated partial thromboplastin time, prothrombin time and international normalized ratio were prolonged postoperatively (0.77-0.9 mg/dl, 34-52 s, and 1.1-1.7, respectively). Of the 31 patients, 13 developed AKI, and 10 of the 13 had recovered at 1 month. Renal impairment due to HES70/0.55/4 was not evident, as shown by the finding that the HES70/0.55/4 amount infused in the AKI patients (53 ml/kg) did not differ from that in the nonAKI patients (55 ml/kg), and there was no relationship between the amount of HES infused and Cr changes. CONCLUSION: High-dose HES70/0.55/4 could be safely used in massive bleeding during surgery. HES70/0.55/4 may affect coagulation, but renal impairment was not evident 1 month after surgery.
PURPOSE: This clinical trial reports the use of hydroxyethyl starch (HES70/0.55/4) at very high dosages during surgery. HES70/0.55/4 has the lowest molecular weight among all HES products, and thus may have the least side effects. This observational retrospective study clarified the effects of high-dose HES70/0.55/4 on coagulation and renal function up to 1 month after massive bleeding during surgery. METHODS: Of 20875 patients on our surgical database, 31 patients were identified who had lost more than 5000 ml of blood during surgery and had survived for more than 1 month. The fluid balance, and pre- and postoperative laboratory data were analyzed. Patients were assessed using acute kidney injury (AKI) criteria. AKI and non-AKI groups were compared regarding volume of HES70/0.55/4 infused and serum creatinine (Cr) levels before surgery and until 1 month after surgery. RESULTS: The mean volumes of blood loss, total transfusions, HES70/0.55/4, and urine output during surgery were 8051 ml; 5765 ml; 3085 ml (54 ml/kg); and 1338 ml (2.7 ml/kg/h), respectively. Cr increased, and activated partial thromboplastin time, prothrombin time and international normalized ratio were prolonged postoperatively (0.77-0.9 mg/dl, 34-52 s, and 1.1-1.7, respectively). Of the 31 patients, 13 developed AKI, and 10 of the 13 had recovered at 1 month. Renal impairment due to HES70/0.55/4 was not evident, as shown by the finding that the HES70/0.55/4 amount infused in the AKI patients (53 ml/kg) did not differ from that in the nonAKI patients (55 ml/kg), and there was no relationship between the amount of HES infused and Cr changes. CONCLUSION: High-dose HES70/0.55/4 could be safely used in massive bleeding during surgery. HES70/0.55/4 may affect coagulation, but renal impairment was not evident 1 month after surgery.
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