Pattarachai KiratisinAnucha ApisarnthanarakSrirumpa KaewdaengMahidol UniversityFaculty of Medicine, Thammasat University2018-09-242018-09-242010-09-01International Journal of Antimicrobial Agents. Vol.36, No.3 (2010), 243-246092485792-s2.0-77954958314https://repository.li.mahidol.ac.th/handle/20.500.14594/29544Treatment options for multidrug-resistant (MDR) and extensively drug-resistant (XDR) Acinetobacter baumannii have been seriously limited and may require combination antimicrobial therapy. In this study, we searched for synergistic activity between carbapenems (doripenem, imipenem and meropenem) and various non-traditional agents (cefoperazone/sulbactam, doxycycline, rifampicin, netilmicin and moxifloxacin) against 40 A. baumannii clinical isolates, including MDR and XDR isolates. The results showed that combination of each carbapenem with cefoperazone/sulbactam, based on the Etest method, demonstrated synergy more frequently (17.5-32.5%) than the other tested agents, which may suggest a role in combination therapy against highly resistant A. baumannii. © 2010 Elsevier B.V. and the International Society of Chemotherapy.Mahidol UniversityMedicineArticleSCOPUS10.1016/j.ijantimicag.2010.04.011