- 著者
 
          - 
             
             藏本 裕信
             
             真砂 聖
             
             柏木 佑貴
             
             前田 翠
             
          
 
          
          
          - 出版者
 
          - 公益社団法人 日本薬学会
 
          
          
          - 雑誌
 
          - YAKUGAKU ZASSHI (ISSN:00316903)
 
          
          
          - 巻号頁・発行日
 
          - vol.139, no.12, pp.1591-1600, 2019-12-01 (Released:2019-12-01)
 
          
          
          - 参考文献数
 
          - 24
 
          
          
          - 被引用文献数
 
          - 
             
             
             6
             
             
          
        
 
        
        
        Tazobactam/piperacillin (TAZ/PIPC) is a useful antimicrobial agent with broad antibacterial activity. Hypokalemia is considered a rare side effect of TAZ/PIPC; however, it may occur more often than previously thought. In this study, hypokalemia frequency and risk factors were examined in 420 patients treated with TAZ/PIPC. Our results demonstrated that the hypokalemia incidence was 24.8% (grade 1-2: 18.3%, grade 3-4: 6.4%). In addition, multivariate analysis revealed that age [odds ratio 1.057, 95% confidence interval 1.024-1.090, cutoff value 80.5 years] is a risk factor. Although the “Daily dosage/creatinine clearance” was not significant in multivariate analysis, univariate analysis indicated it be to be significant, with a cutoff value of 294.9 mg/mL/min. Furthermore, a “body mass index of 19.7 kg/m2 or higher”, “serum potassium level before administration of 3.95 mEq/L or more”, and “no empirical treatment for administration purposes” appeared to prevent the hypokalemia development. Overall, the hypokalemia incidence rate in TAZ/PIPC-administered patients was as high as 20%, with patients aged >80.5 years considered a high-risk group. Thus, careful monitoring of potassium levels in patients treated with TAZ/PIPC, particularly those aged >81 years, is warranted.