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  • Title: Experimental anaerobic liver abscess: observations on treatment.
    Author: Lucore CL, McDonald MI, Wharton M, Durack DT.
    Journal: Liver; 1986 Jun; 6(3):125-32. PubMed ID: 3747743.
    Abstract:
    Various treatment modalities for solitary anaerobic liver abscesses were evaluated in a recently-described rabbit model. In the first phase of the experiment, 35 rabbits with liver abscesses induced with Bacteroides fragilis and Fusobacterium necrophorum were randomized into four groups: surgical drainage alone, drainage plus clindamycin 150 mg IM 8-hourly, clindamycin alone, and untreated controls. Serum clindamycin concentrations in rabbits were similar to those achieved in humans. The survival of rabbits receiving antibiotic chemotherapy alone was significantly better than controls, whereas the survival of those having surgical drainage with or without chemotherapy was not. However, successful surgical drainage was followed by weight gain in surviving rabbits. In the second phase of the experiment 18 rabbits with abscesses were randomized into the same groups. Aspirates of pus from all rabbits receiving clindamycin were sterile by day 7 of treatment, but high bacterial counts were still present in the abscess cavities of control rabbits and of those undergoing drainage alone. These findings illustrate the application of a new model for pyogenic liver abscess in laboratory investigation. Their relevance to management of human pyogenic liver abscesses remains to be assessed.
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