Imipenem/cilastatin sodium (IPM/CS) was used to treat respiratory tract infections (RTI) in 54 patients with lung cancer. Out of the 54 patients studied, 53 were evaluable for the utility of IPM/CS; 42 had pneumonia, 9 had obstructive pneumonia, 1 had a lung abscess and 1 had acute bronchitis. The efficacy rate was 71.7%. Seventeen causative organisms were isolated from 14 patients. They included Staphylococcus aureus 5 strains, Staphylococcus epidermidis 4 strains, Staphylococcus sp. 2 strains, Enterococcus faecalis 1 strain, Pseudomonas aeruginosa 2 strains, Pseudomonas fluorescens 2 strains, Acinetobacter sp. 1 strain, and the eradication rate was 81.8%. Clinical adverse effects (nausea and vomiting) were observed in 1 patient. Abnormalities in laboratory test results were observed in 3 patients. They disappeared or returned to normal values after completion of therapy or discontinuation of IPM/CS administration. IPM/CS appears to be a useful antibiotic for RTI in patients with lung cancer.
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