Laboratory Medicine ›› 2019, Vol. 34 ›› Issue (6): 547-550.DOI: 10.3969/j.issn.1673-8640.2019.06.016

• Orginal Article • Previous Articles     Next Articles

Performance comparison of 4 panels for in vitro drug susceptibility test of Streptococcus pneumoniae

MA Bing, WANG Fangfang, WANG Shanmei, ZHANG Jiangfeng, YAN Wenjuan, JING Nan, LI Yi()   

  1. Department of Clinical Laboratory,Henan Provincial People's Hospital,Zhengzhou 450003,Henan,China
  • Received:2018-05-21 Online:2019-06-30 Published:2019-07-04

Abstract:

Objective To evaluate the consistency of 4 panels for in vitro drug susceptibility test of Streptococcus pneumoniae. Methods The concentration gradient method was used as a reference method. The in vitro drug susceptibility test was done with the SMIC panels of the American BD company's Phoenix100(BD-SMIC),the Vitek 2 Compact GP68 panels of French Bio Mérieux(Vitek 2-GP68),the Streptococcus panels of Zhuhai Deere Bioengineering Co.(DL-STREP) and the Streptococcus panels of Wenzhou Kangtai Biological Technology Co.,Ltd(KT-STREP). The results were evaluated by 4 parameters,including category agreement(CA),essential agreement(EA),very major discrepancy(VMD)and major discrepancy(MD). Results The MD values of penicillin were influenced by the interpretation criteria. Other drugs(erythromycin,trimethoprim-sulfamethoxazole,cefotaxime,ceftriazone,meropenem,clindamycin,levofloxacin,vancomycin and linezolid) involved in the comparison were acceptable(EA≥90%,CA≥90%,VMD<3% and MD<3%). Conclusions Except penicillin,the in vitro drug susceptibility test results of the 4 panels are consistent.

Key words: Streptococcus pneumoniae, In vitro drug susceptibility test, Consistency

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