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  • Title: [Clinical evaluation of sulbactam/cefoperazone in lower respiratory tract infections].
    Author: Ishibashi T, Takamoto M, Shinoda A, Yoshida M, Ichikawa Y, Kido M, Ninomiya K, Kitahara Y, Hara N, Tsurutani H.
    Journal: Jpn J Antibiot; 1990 Feb; 43(2):239-56. PubMed ID: 2194054.
    Abstract:
    Clinical evaluation, safety and kinetics in serum of sulbactam/cefoperazone (SBT/CPZ) in patients with lower respiratory tract infections have been studied in a multicenter trial participated by 28 institutions in Kyushu area during a period of 13 months from March 1987 to March 1988. 1. Mean peak serum levels of SBT and CPZ in 35 patients up to 4 hours after intravenous infusion of 2 g of SBT/CPZ were 38.2 +/- 17.3 micrograms/ml for SBT and 104.3 +/- 31.4 micrograms/ml for CPZ. Serum half-lives of SBT and CPZ were 0.76 hour and 1.53 hours, respectively. These results were in similar ranges to those reported elsewhere for SBT/CPZ. 2. Serum half-lives of SBT and CPZ after intravenous infusion of 2 g of SBT/CPZ were not significantly prolonged in patients with moderate liver or kidney dysfunctions. 3. Clinical efficacy rates of SBT/CPZ in 217 patients were 93.1% (81/87) for pneumonia, 93.3% (14/15) for lung abscess, 78.9% (15/19) for acute exacerbation of chronic bronchitis, 57.1% (4/7) for diffuse panbronchiolitis, 72.4% (21/29), 74.4% (32/43) and 100% (9/9) for infections concurrent to bronchiectasis, chronic respiratory disease and pulmonary emphysema, respectively. Those were 50% (1/2) for bronchitis associated with lung cancer and 66.7% (4/6) for empyema. The overall efficacy rate was 83.4% (181/217). 4. Clinical efficacy rate of SBT/CPZ for pneumonia in patients with underlying diseases such as lung cancer, pulmonary tuberculosis and pneumoconiosis, etc, was 85.3% (29/34) and was not significantly different from the efficacy rate of 98.1% (52/53) in patients without these underlying diseases. 5. Of 30 patients who failed to respond of previous antibiotic treatments, 21 were effectively treated by SBT/CPZ. 6. Bacteriological eradication rates against Pseudomonas aeruginosa, Haemophilus influenzae and Streptococcus pneumoniae were 42.9% (9/21), 87.5% (14/16) and 100% (5/5), respectively. The overall eradication rate in all cases including polymicrobial infections was 72.8% (67/92). 7. The high levels of peak serum concentration of CPZ, and the difference between serum levels of SBT and of CPZ seemed to contribute to the high clinical efficacy. 8. Adverse reactions occurred in 2.8% (6/217) of the patients, and consisted primarily of rash and diarrhea. Laboratory abnormalities were observed in 8 patients during the study. These were elevations of S-GOT and S-GPT, and eosinophilia. 9. SBT/CPZ is a very useful drug in the treatment of lower respiratory tract infections as it has become available just in time when increase in resistant organisms to beta-lactams is notable.
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