OBJECTIVE To explore the prevention mesures of hospital infection in aged patients with long-term central vein catheterization.METHODS The clinical data of 26 aged patients with long-term central vein catheterization from Mar 2005 to Oct 2006 were analyzed retrospectively.RESULTS Among 26 aged patients with long-term central vein catheterization,no related hospital infection occurred with average 7 d hospitalization.Swelling in upper extremities was observed in 5 patients.CONCLUSIONS The mesures,such as aseptic procedure for changing transfusion device periodically and using effective filter can effectively prevent the infection.