国际检验医学杂志
國際檢驗醫學雜誌
국제검험의학잡지
INTERNATIONAL JOURNAL OF LABORATORY MEDICINE
2014年
16期
2208-2209,2211
,共3页
郑港森%张加勤%黄朝阳%马晓波
鄭港森%張加勤%黃朝暘%馬曉波
정항삼%장가근%황조양%마효파
双纸片抑制增效%肺炎克雷伯菌%头孢菌素酶%头孢西丁
雙紙片抑製增效%肺炎剋雷伯菌%頭孢菌素酶%頭孢西丁
쌍지편억제증효%폐염극뢰백균%두포균소매%두포서정
double-disk synergy test%Klebsiella.Pneumoniae%AmpC%Cefoxitin
目的:探讨分析双纸片抑制增效试验在肺炎克雷伯菌产 AmpC 酶的检测应用,评价该方法在临床实验室的应用价值。方法采用头孢西丁纸片法,头孢西丁三维试验,双纸片抑制增效试验,以及耐药基因多重 PCR 技术对临床分离菌株进行检测。结果137株临床分离肺炎克雷伯菌中,对头孢西丁不敏感的菌株共有22株,头孢西丁三维试验阳性有11株;双纸片抑制增效试验 FOX/FOX+PBA 双纸片组中阳性有18株,CTT/CTT+PBA 双纸片组中阳性有11株;多重 PCR 技术检测阳性有19株。头孢西丁三维试验阳性结果与 PCR 结果符合率为47.4%(9/19),双纸片抑制增效试验中,CTT/CTT+PBA 双纸片组阳性结果与 PCR 结果符合率为57.9%(11/19);FOX/FOX+PBA 双纸片组阳性结果与 PCR 结果符合率为94.7%(18/19)。结论双纸片抑制增效试验,其方法简便,结果准确性高,其中 FOX/FOX+PBA 双纸片组可应用于临床分离肺炎克雷伯菌产 AmpC 酶的检测。
目的:探討分析雙紙片抑製增效試驗在肺炎剋雷伯菌產 AmpC 酶的檢測應用,評價該方法在臨床實驗室的應用價值。方法採用頭孢西丁紙片法,頭孢西丁三維試驗,雙紙片抑製增效試驗,以及耐藥基因多重 PCR 技術對臨床分離菌株進行檢測。結果137株臨床分離肺炎剋雷伯菌中,對頭孢西丁不敏感的菌株共有22株,頭孢西丁三維試驗暘性有11株;雙紙片抑製增效試驗 FOX/FOX+PBA 雙紙片組中暘性有18株,CTT/CTT+PBA 雙紙片組中暘性有11株;多重 PCR 技術檢測暘性有19株。頭孢西丁三維試驗暘性結果與 PCR 結果符閤率為47.4%(9/19),雙紙片抑製增效試驗中,CTT/CTT+PBA 雙紙片組暘性結果與 PCR 結果符閤率為57.9%(11/19);FOX/FOX+PBA 雙紙片組暘性結果與 PCR 結果符閤率為94.7%(18/19)。結論雙紙片抑製增效試驗,其方法簡便,結果準確性高,其中 FOX/FOX+PBA 雙紙片組可應用于臨床分離肺炎剋雷伯菌產 AmpC 酶的檢測。
목적:탐토분석쌍지편억제증효시험재폐염극뢰백균산 AmpC 매적검측응용,평개해방법재림상실험실적응용개치。방법채용두포서정지편법,두포서정삼유시험,쌍지편억제증효시험,이급내약기인다중 PCR 기술대림상분리균주진행검측。결과137주림상분리폐염극뢰백균중,대두포서정불민감적균주공유22주,두포서정삼유시험양성유11주;쌍지편억제증효시험 FOX/FOX+PBA 쌍지편조중양성유18주,CTT/CTT+PBA 쌍지편조중양성유11주;다중 PCR 기술검측양성유19주。두포서정삼유시험양성결과여 PCR 결과부합솔위47.4%(9/19),쌍지편억제증효시험중,CTT/CTT+PBA 쌍지편조양성결과여 PCR 결과부합솔위57.9%(11/19);FOX/FOX+PBA 쌍지편조양성결과여 PCR 결과부합솔위94.7%(18/19)。결론쌍지편억제증효시험,기방법간편,결과준학성고,기중 FOX/FOX+PBA 쌍지편조가응용우림상분리폐염극뢰백균산 AmpC 매적검측。
Objective To investigate and analyze the double-disk inhibiting synergy test for detecting AmpC β-lactamase pro-duced by Klebsiella pneumoniae and to evaluate its application value in clinical laboratory.Methods The cefoxitin disk agar diffu-sion method,cefoxitin three-dimensional method,double-disk inhibiting synergy test and drug resistance gene multiplex PCR assay were adopted to detect the clinically isolated bacterial strains.Results Among 137 clinically isolated strains of Klebsiella pneumoni-ae,22 strains were insensitive to cefoxitin and 11 strains were positive by the three-dimensional method;in the double-disk inhibiting synergy test,18 strains were positive for the FOX/FOX+PBA group and 11 strains were positive for the CTT/CTT+PBA group respectively;in the multiplex PCR assay,19 strains were positive.The coincidence rate of the cefoxitin three-dimensional method and multiplex PCR methods was 47.4%(9/19),in the double-disk inhibiting synergy test,the coincidence rate of the positive re-sults in the CTT/CTT+PBA group and the multiplex PCR methods was 57.9%(11/19);the coincidence rate of the FOX/FOX+PBA group and multiplex PCR methods was 94.7%(18/19).Conclusion The double-disk inhibiting synergy test is simple with highly accurate results,in which the FOX/FOX+PBA double-disk synergy test could be applied to detect AmpC β-lactamase pro-duced by clinical isolates of Klebsiella pneumoniae.