Tazobactam/Piperacillinの呼吸器感染症に対する基礎的・臨床的研究

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  • Basic and clinical studies of tazobactam/piperacillin in respiratory infections

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We performed basic and clinical studies on tazobactam/piperacillin (TAZ/PIPC), which is tazobactam, a new β-lactamase inhibitor, combined with piperacillin, in respiratory infections, with the following results.<BR>The MICs of TAZ/PIPC against clinical isolates were determined with an inoculum size of 106 CFU/ml. The MIC90 was 3.13μg/ml for methicillin-sensitive Staphylococcus aureus, 1.56μg/ml for Streptococcus pneumoniae, 0.1μg/ml for Moraxella catarrhalis, 0.2μg/ml for Haemophilus influenzae, 25μg/ml for Klebsiella pneumoniae and 100μg/ml for Pseudomonas aeruginosa.<BR>The clinical evaluation of TAZ/PIPC in 5 patients with respiratory infections was excellent in 1, good in 3, unknown in 1. In all cases, neither side effects nor abnormal laboratory findings were observed.<BR>These results suggest that TAZ/PIPC is a useful antibacterial agent for respiratory infections.

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