Outcomes of Hickman catheter salvage in febrile neutropenic cancer patients with Staphylococcus aureus bacteremia

OBJECTIVE: To evaluate the outcome of attempted Hickman catheter salvage in neutropenic cancer patients with Staphylococcus aureus bacteremia who were not using antibiotic lock therapy. DESIGN: Retrospective cohort study. SETTING: A university-affiliated, tertiary-care hospital with 1,500 beds for adult patients. PATIENTS: All neutropenic cancer patients who had a Hickman catheter and S. aureus bacteremia (32 episodes in 29 patients) between January 1998 and March 2002. METHODS: Salvage attempts were defined as cases where the Hickman catheter was not removed until we obtained the results of follow-up blood cultures performed 48 to 72 hours after starting treatment with antistaphylococcal antibiotics. Salvage was considered to be successful if the Hickman catheter was still in place 3 months later without recurrent bacteremia or death. RESULTS: Catheter salvage was attempted in 24 (75916) of the 32 episodes. Of the salvage attempts, the success rate was 50% (12 of 24). Salvage attempts were successful in 14% (1 of 7) of the episodes with positive follow-up blood cultures, and in 65% (11 of 17) of those with negative follow-up blood cultures (P =.07). If the analysis is confined to cases with no external signs of catheter infection, salvage attempts were successful in 14% (1 of 7) of the episodes with positive follow-up blood cultures and in 80% (8 of 10) of those with negative follow-up blood cultures (P =.02). CONCLUSION: In neutropenic cancer patients with S. aureus bacteremia, attempted catheter salvage without antibiotic lock therapy was successful in 50% of the cases.