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  • Title: Moxalactam-tobramycin-resistant Pseudomonas aeruginosa isolates in patients with cystic fibrosis.
    Author: Fitzpatrick SB, Rosenstein BJ.
    Journal: Clin Pediatr (Phila); 1983 Sep; 22(9):628-30. PubMed ID: 6224623.
    Abstract:
    In vitro studies have shown synergistic killing activity against Pseudomonas aeruginosa (PA) with the combination of an aminoglycoside and moxalactam, a new beta-lactam agent. We describe three patients with cystic fibrosis (CF) with PA isolates that were resistant to all single-agent antibiotics, but sensitive to the combination of moxalactam-tobramycin. Initially, all patients had a good clinical response to this combination. However, during a second course of therapy, there was clinical deterioration coincident with the rapid emergence of moxalactam-tobramycin-resistant PA isolates.
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