patients ( 132 ) receiving low-dose heparin for the prevention of venous thrombosis after surgery were given in random order in addition to standard fluid therapy , a 500 ml infusion of balanced salt solution and glucose , 4 % gelatine , 6 % dextran , or 6 % hydroxyethyl starch ( mean molecular weight 40,000 or 125,000 ) after induction of anaesthesia .
C0042487
venous
C0086140
dextran