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CONTRIBUTION OF AMBULATORY PARENTERAL ANTIBIOTIC THERAPY FOR THE TREATMENT OF BONE AND JOINT INFECTIONS



Abstract

Purpose: Patients hospitalized for osteomyelitis due to multi-resistant strains are often given prolonged parenteral antibiotics. Ambulatory parenteral antibiotic therapy is an alternative allowing outpatient care. The purpose of this study is to assess tolerance, cost and efficacy of this type of treatment.

Material and methods: Thirty-nine patients followed for osteomyelitis were included in this study. These patients were given antibiotics in a continuous infusion using a portable diffuser connected to an implanted chamber. Mean duration of treatment was four months, range 1.5–12 months. The follow-up team included the primary care physician, an infectious diseases specialist, and a nurse with special training in prolonged ambulatory antibiotic treatments. Results of weekly blood tests were transmitted to the referral hospital physician. Adverse effects and cost of prolonged ambulatory antibiotic therapy were recorded. Cost included costs for nurses, physical therapists, and physicians as well as drugs, supplies and laboratory tests. The cost of hospitalisation was determined on the basis of the standard cost for one day of hospitalisation in France.

Results: There were three cases of thrombophlebitis and one case of allergic reaction, both required re-hospitalisation. Cure was achieved in 93% of the patients. Mean follow-up since cure with discontinuation of the antibiotics was 18 months (14–22). Home care was possible in 100% of the patients and 23% of the patients were able to resume their occupational activity; 25% resumed their schooling. Self-administered schemes were possible in 23% of the patients. Compared with conventional hospitalisation, ambulatory parenteral antibiotic therapy enabled a cost savings of 1352 euros per patient.

Discussion: These results demonstrate that ambulatory antibiotic therapy is a very good alternative to classical hospitalisation enabling low morbidity, early resumption of social activities without loss of efficacy.

The abstracts were prepared by Pr. Jean-Pierre Courpied (General Secretary). Correspondence should be addressed to him at SOFCOT, 56 rue Boissonade, 75014 Paris, France