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Iranian Journal of Microbiology، جلد ۱۷، شماره ۲، صفحات ۲۵۳-۲۶۰
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عنوان انگلیسی Evaluating the susceptibility to ceftazidime-avibactam in clinical isolates of Klebsiella pneumoniae and Pseudomonas aeruginosa recovered from an apex medical hospital in north India
چکیده انگلیسی مقاله Background and Objectives: We assessed the susceptibility of ceftazidime+avibactam (CZA/AVI) in Klebsiella pneumoniae and Pseudomonas aeruginosa isolated from intensive care units of our hospital. Materials and Methods: Clinical samples from Jan 2022 to Dec 2023 at SKIMS Soura, were processed for the recovery of K. pneumoniae and P. aeruginosa. Susceptibility testing was done by disc diffusion (DD) method and minimum inhibitory concentration (MIC) for CZA/AVI and meropenem was assessed using E-test strips. Categorical agreement (CA), very major errors (VME), major errors (ME) and minor errors (mE) between DD and MIC were measured. Statistical analyses were performed using SPSS version 22.0. Results: A total of 111 K. pneumoniae and 81 P. aeruginosa were part of the study. Of these, 56.8% K. pneumoniae and 45.7% P. aeruginosa isolates were susceptible to CZA/AVI. MIC of CZA/AVI for K. pneumoniae ranged from 0.125 to ≥ 256 μg/ml and for P. aeruginosa it ranged from 0.032 to 128 μg/ml. CA was 97.29% between DD and E-Test for CZA/AVI in K. pneumoniae isolates, with a ME of 2.70%. For P. aeruginosa CA between DD and E-Test for CZA/AVI was 98.76% with a VME of 1.23%. MIC values of meropenem were higher than CZA/AVI even in sensitive isolates. Conclusion: CZA/AVI shows good in-vitro activity against clinical isolates of K. pneumoniae and P. aeruginosa and can be part of empirical therapy for treating infections caused by these bacteria.
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نویسندگان مقاله | Nargis Bali
Department of Microbiology, Sher-i-Kashmir Institute of Medical Sciences, Soura, Jammu & Kashmir, India


| Tufail Ahmed
Department of Microbiology, Govt Medical College, Anantnag, Jammu & Kashmir, India


| Biswajyoti Borkakoty
Viral Research and Diagnostic Laboratory, Regional ICMR Laboratory, Dibrugarh Assam, India


| Roseleen Bali
Department of Respiratory and Pulmonary Medicine Apollo Hospital, New Delhi, India


| Anjum Mir
Department of Microbiology, Sher-i-Kashmir Institute of Medical Sciences, Soura, Jammu & Kashmir, India


| Zubair Teli
Department of Microbiology, Sher-i-Kashmir Institute of Medical Sciences, Soura, Jammu & Kashmir, India


| Qounser Nisar
Department of Microbiology, Sher-i-Kashmir Institute of Medical Sciences, Soura, Jammu & Kashmir, India


| Tantray Faisal
Department of Microbiology, Sher-i-Kashmir Institute of Medical Sciences, Soura, Jammu & Kashmir, India
نشانی اینترنتی https://ijm.tums.ac.ir/index.php/ijm/article/view/4940
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