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Success Rates and Cost-Effectiveness of Antibiotic Combinations for Initial Treatment of Central-Venous-Line Infections During Total Parenteral Nutrition

Department of Pediatrics, University of Bologna, 1.forchielli{at}post.harvard.edu

Kathleen Gura, RPh

Departrnent of Pharmacy, Children's Hospital, Boston, Massachussets

Eugenio Anessi-Pessina, PHD

Department of Business Administration, The Catholic University, Milan, Italy

Denise Richardson, RN

Combined Program in Gastroenterology and Nutrition, Children's Hospital, Boston, Massachussets

Wei Cai, MD

Department of Pediatric Surgery, Xin Hua Hospital, University of Shanghai, China

Clifford W. Lo, MD

Combined Program in Gastroenterology and Nutrition, Children's Hospital, Boston, Massachussets

Background: Central-venous-line infections can be successfully treated with appropriate antibiotics, thus avoiding the need for catheter removal. Based on our experience, vancomycin, gentamicin, piperacillin, ceftazidime, and amphotericin, alone or in combination, are usually administered, pending sensitivity results. This empirical list, however, has never been verified against actual sensitivity results nor has it been tested for cost or efficacy. Methods: Medical records of inpatients on hyperalimentation over 1 year were reviewed. Success rate, therapy duration, and drug acquisition cost and charge were assessed for central-venous-line infections. Antibiotics then were paired and evaluated in terms of charge and efficacy against all microorganisms as determined by sensitivity results. Results: In 500 inpatients receiving hyperalimentation for 9698 patient-days, 8.4 central-venous-line infections/1000 patient-days occurred. Staphylococcus non-aureus , Candida species, Enterococcus faecium, and Staphylococcus aureus predominantly were isolated. Of the infections, 51 (67%) were sensitive to one or more of the initial antibiotics. A 2-week course of antibiotics successfully treated 50 (66%) catheter infections without line removal. Appropriate initial therapy on average reduced treatment duration by 8 to 10 days and drug charges by $400 to $700. Conclusions: Amikacin-vancomycin appears to be the most cost-effective selection for presumed central-venous-line infections, pending sensitivity results, followed by valid alternatives. Lower failure rates are well worth the extra cost in pharmaceutical charges. (Journal of Parenteral and Enteral Nutrition 24:119-125, 2000)

Journal of Parenteral and Enteral Nutrition, Vol. 24, No. 2, 119-125 (2000)
DOI: 10.1177/0148607100024002119


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