Effects of cefamandole on hemostasis in patients undergoing hip replacement with heparin prophylaxis.

: The aim of this study was to compare the effects of the prophylactic use of cefamandole versus oxacillin plus gentamicin on hemostasis in patients undergoing hip replacement with heparin prophylaxis. Twenty-four patients with a normal hemostatic profile were randomly allocated to receive either cefamandole or oxacillin plus gentamicin. All the patients received calcium heparin. Platelet count, bleeding time, prothrombin time (PT), activated partial thromboplastin time (aPTT), thrombin clotting time (TCT), fibrinogen and serum FDP were assessed before treatment and every day of antibiotic administration. Surgical bleeding was assessed using a four-grade score system. Platelet count, bleeding time, fibrinogen and serum FDP did not show any change with both treatments. PT, aPTT and TCT showed a similar and mild prolongation in the two groups of patients. No difference in the surgical bleeding was observed between the two groups. We conclude that a short-term prophylaxis with cefamandole is a safe regimen in patients undergoing hip replacement with heparin prophylaxis.