TY - JOUR
T1 - E-test versus agar dilution for antibiotic susceptibility testing of Helicobacter pylori
T2 - A comparison study
AU - Miftahussurur, Muhammad
AU - Fauzia, Kartika Afrida
AU - Nusi, Iswan Abbas
AU - Setiawan, Poernomo Boedi
AU - Syam, Ari Fahrial
AU - Waskito, Langgeng Agung
AU - Doohan, Dalla
AU - Ratnasari, Neneng
AU - Khomsan, Ali
AU - Adnyana, I. Ketut
AU - Akada, Junko
AU - Yamaoka, Yoshio
N1 - Funding Information:
This study was funded by grants from the National Institutes of Health (DK62813) and Grants-in-Aid for Scientific Research from the Ministry of Education, Culture, Sports, Science, and Technology (MEXT) of (15H02657, 16H05191, 16H06279, 18KK0266 and 19H03473) (YY) and the National Institutes of Health (DK62813). It was also supported by the Japan Society for the Promotion of Science Institutional Program for Core-to-Core Program; B. Africa-Asia Science Platform (YY). LAW, DD, and KAF are doctoral students supported by the MEXT Scholarship Program for 2015, 2016, and 2017, respectively. In addition, the Ministries of Research, Technology, and Higher Education in the World Class Professor Program (123.4/D2.3/KP/2018) supported this research (MM). The funding body had no role in the design of the study and collection, analysis and interpretation of data, and in writing the manuscript.
Publisher Copyright:
© 2020 The Author(s).
PY - 2020/1/10
Y1 - 2020/1/10
N2 - Objective: For evaluating the antibiotic resistance of Helicobacter pylori, the agar dilution method is the gold standard; however, using this method in daily practice is laborious. E-test has been proposed to be an uncomplicated method. This study was aimed at validating the E-test and detecting the presence of any bias between the agar dilution method and E-test. Results: The agar dilution method and E-test were performed using five antibiotics for 72 strains of H. pylori obtained from clinical patients in Indonesia. The E-test's results showed a higher prevalence of resistance to all the antibiotics tested but the difference was not significant. Results showed high essential agreement (> 90.0%) for all the antibiotics, but only 84.7% for metronidazole. The agreement for MIC value was acceptable for levofloxacin, clarithromycin, and metronidazole. For amoxicillin, it showed only fair agreement (0.25) by the Kappa analysis and significant difference by Passing-Bablok regression. Even though some discrepancies were found, the E-test has an acceptable agreement for levofloxacin, metronidazole, tetracycline, and clarithromycin but further confirmation may be necessary for amoxicillin.
AB - Objective: For evaluating the antibiotic resistance of Helicobacter pylori, the agar dilution method is the gold standard; however, using this method in daily practice is laborious. E-test has been proposed to be an uncomplicated method. This study was aimed at validating the E-test and detecting the presence of any bias between the agar dilution method and E-test. Results: The agar dilution method and E-test were performed using five antibiotics for 72 strains of H. pylori obtained from clinical patients in Indonesia. The E-test's results showed a higher prevalence of resistance to all the antibiotics tested but the difference was not significant. Results showed high essential agreement (> 90.0%) for all the antibiotics, but only 84.7% for metronidazole. The agreement for MIC value was acceptable for levofloxacin, clarithromycin, and metronidazole. For amoxicillin, it showed only fair agreement (0.25) by the Kappa analysis and significant difference by Passing-Bablok regression. Even though some discrepancies were found, the E-test has an acceptable agreement for levofloxacin, metronidazole, tetracycline, and clarithromycin but further confirmation may be necessary for amoxicillin.
KW - Agar dilution
KW - Antibiotic susceptibility test
KW - E-test
KW - Helicobacter pylori
UR - http://www.scopus.com/inward/record.url?scp=85077765456&partnerID=8YFLogxK
U2 - 10.1186/s13104-019-4877-9
DO - 10.1186/s13104-019-4877-9
M3 - Article
C2 - 31924273
AN - SCOPUS:85077765456
SN - 1756-0500
VL - 13
JO - BMC Research Notes
JF - BMC Research Notes
IS - 1
M1 - 22
ER -