• R Beyer, U Harmening, O Rittmeyer, S Zielmann, F Mielck, S Kazmaier, and D Kettler.
• Department of Anaesthesiology, Emergency and Intensive Care Medicine, George-August-University of Göttingen, Germany.
• Br J Anaesth. 1997 Jan 1;78(1):44-50.

AbstractWe have compared 6% hydroxyethyl starch (HES 200/0.5) with 3% modified fluid gelatin (MFG) for volume replacement in major orthopaedic surgery and studied the effects on haemodynamic state, colloid osmotic pressure, blood clotting and plasma homeostasis. Using a controlled, randomized, single-blind clinical design, we studied 46 consecutive patients undergoing major elective orthopaedic hip surgery. The two groups were comparable in age, body weight and duration of surgery. Patients were maintained haemodynamically stable using both HES and MFG over the entire study. Fluid balance and colloidal replacement volumes were comparable in both groups (median perioperative infusion volume: HES 2500 ml, MFG 2400 ml). Laboratory variables were not clinically different. We conclude that both colloidal solutions were comparable in volume efficacy and effects on plasma oncotic pressure, clotting and plasma homeostasis. In the small number of patients studied, 6% HES 200/0.5 was found to be safe when administered in amounts corresponding to the currently accepted maximum daily dose in Germany and France of 33 ml/kg body weight and 2.0 g/kg body weight, respectively.

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