Increasing trends of colistin resistance in patients at high-risk of carbapenem-resistant Enterobacteriaceae
Introduction Occurrence of colistin-resistant Enterobacteriaceae in response to the unregulated use of this antibiotic has been documented. This study reports an investigation of colistin resistance rates among carbapenem-resistant enterobacterial clinical isolates.Methods A total of 196 multidrug-r...
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2022-12-01
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| Series: | Annals of Medicine |
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| Online Access: | https://www.tandfonline.com/doi/10.1080/07853890.2022.2129775 |
| _version_ | 1798015318735454208 |
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| author | Hadir A. El-Mahallawy Marwa El Swify Asmaa Abdul Hak Mai M. Zafer |
| author_facet | Hadir A. El-Mahallawy Marwa El Swify Asmaa Abdul Hak Mai M. Zafer |
| author_sort | Hadir A. El-Mahallawy |
| collection | DOAJ |
| description | Introduction Occurrence of colistin-resistant Enterobacteriaceae in response to the unregulated use of this antibiotic has been documented. This study reports an investigation of colistin resistance rates among carbapenem-resistant enterobacterial clinical isolates.Methods A total of 196 multidrug-resistant Enterobacteriaceae isolates (Klebsiella pneumoniae (n = 100), Escherichia coli (n = 89) and Enterobacter cloacae (n = 7) were selected from Gram-negative isolates over one year. Susceptibility to antimicrobials was determined using Vitek2. Broth microdilution method was used to detect colistin antimicrobial susceptibility. Identification of ESBL and carbapenemases were both done phenotypically and by PCR.Results All the studied isolates showed multidrug-resistant phenotypes with 51.5% resistance to carbapenems (meropenem, imipenem). Very low resistance rates towards tigecycline (n = 9) 4.6% were found. Thirty-nine isolates (19.9%) showed reduced susceptibility to colistin among the MDR isolates. Sixty-four isolates (32.7%) were ESBL producers. Hundred isolates (51%) were carbapenemase producers using Carba NP test. The PCR amplification results revealed that 40 isolates (20%) harboured NDM-1 and 40 isolates contained OXA-48-like gene. Coexistence of both (NDM-1 and OXA-48-like) was observed in nine (4.59%) isolates. A Statistically significant relationship was observed between carbapenem resistance and each of the followings; OXA-48 producers (p= .009), amikacin resistance (p = .000), gentamicin resistance (p = .032), tobramycin resistance (p = .000), and tigecycline resistance (p-value ≤ .001). A statistical significance was detected between ESBL-producing isolates and carbapenem susceptible isolates ESBL producers with p = 0.000.Conclusion An alarming sign is the increasing colistin resistance rates among carbapenem-resistant isolates. Aminoglycosides are still a therapeutic option to decrease the use of colistin and avoid further development of resistance.KEY MESSAGESHigh rates of colistin resistance among carbapenem-resistant Enterobacteriaceae.The choice of antibiotic is significantly associated with the clinical site of infection.Aminoglycosides are offered choices for treating multiple drug-resistant Enterobacteriaceae to preserve the colistin and carbapenems. |
| first_indexed | 2024-04-11T15:31:22Z |
| format | Article |
| id | doaj.art-803c94002a3f4b8f831bd70575e5f320 |
| institution | Directory Open Access Journal |
| issn | 0785-3890 1365-2060 |
| language | English |
| last_indexed | 2024-04-11T15:31:22Z |
| publishDate | 2022-12-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Annals of Medicine |
| spelling | doaj.art-803c94002a3f4b8f831bd70575e5f3202022-12-22T04:16:07ZengTaylor & Francis GroupAnnals of Medicine0785-38901365-20602022-12-015411910.1080/07853890.2022.2129775Increasing trends of colistin resistance in patients at high-risk of carbapenem-resistant EnterobacteriaceaeHadir A. El-Mahallawy0Marwa El Swify1Asmaa Abdul Hak2Mai M. Zafer3Department of Clinical Pathology, National Cancer Institute, Cairo University, Cairo, EgyptDepartment of Clinical Pathology, National Cancer Institute, Cairo University, Cairo, EgyptDepartment of Microbiology and Immunology, Faculty of Pharmacy, Ahram Canadian University, Cairo, EgyptDepartment of Microbiology and Immunology, Faculty of Pharmacy, Ahram Canadian University, Cairo, EgyptIntroduction Occurrence of colistin-resistant Enterobacteriaceae in response to the unregulated use of this antibiotic has been documented. This study reports an investigation of colistin resistance rates among carbapenem-resistant enterobacterial clinical isolates.Methods A total of 196 multidrug-resistant Enterobacteriaceae isolates (Klebsiella pneumoniae (n = 100), Escherichia coli (n = 89) and Enterobacter cloacae (n = 7) were selected from Gram-negative isolates over one year. Susceptibility to antimicrobials was determined using Vitek2. Broth microdilution method was used to detect colistin antimicrobial susceptibility. Identification of ESBL and carbapenemases were both done phenotypically and by PCR.Results All the studied isolates showed multidrug-resistant phenotypes with 51.5% resistance to carbapenems (meropenem, imipenem). Very low resistance rates towards tigecycline (n = 9) 4.6% were found. Thirty-nine isolates (19.9%) showed reduced susceptibility to colistin among the MDR isolates. Sixty-four isolates (32.7%) were ESBL producers. Hundred isolates (51%) were carbapenemase producers using Carba NP test. The PCR amplification results revealed that 40 isolates (20%) harboured NDM-1 and 40 isolates contained OXA-48-like gene. Coexistence of both (NDM-1 and OXA-48-like) was observed in nine (4.59%) isolates. A Statistically significant relationship was observed between carbapenem resistance and each of the followings; OXA-48 producers (p= .009), amikacin resistance (p = .000), gentamicin resistance (p = .032), tobramycin resistance (p = .000), and tigecycline resistance (p-value ≤ .001). A statistical significance was detected between ESBL-producing isolates and carbapenem susceptible isolates ESBL producers with p = 0.000.Conclusion An alarming sign is the increasing colistin resistance rates among carbapenem-resistant isolates. Aminoglycosides are still a therapeutic option to decrease the use of colistin and avoid further development of resistance.KEY MESSAGESHigh rates of colistin resistance among carbapenem-resistant Enterobacteriaceae.The choice of antibiotic is significantly associated with the clinical site of infection.Aminoglycosides are offered choices for treating multiple drug-resistant Enterobacteriaceae to preserve the colistin and carbapenems.https://www.tandfonline.com/doi/10.1080/07853890.2022.2129775Carbapenem-resistant Enterobacteriaceaeaminoglycosidestigecyclinecolistin resistancecarbapenemase geneshealthcare-associated infections |
| spellingShingle | Hadir A. El-Mahallawy Marwa El Swify Asmaa Abdul Hak Mai M. Zafer Increasing trends of colistin resistance in patients at high-risk of carbapenem-resistant Enterobacteriaceae Annals of Medicine Carbapenem-resistant Enterobacteriaceae aminoglycosides tigecycline colistin resistance carbapenemase genes healthcare-associated infections |
| title | Increasing trends of colistin resistance in patients at high-risk of carbapenem-resistant Enterobacteriaceae |
| title_full | Increasing trends of colistin resistance in patients at high-risk of carbapenem-resistant Enterobacteriaceae |
| title_fullStr | Increasing trends of colistin resistance in patients at high-risk of carbapenem-resistant Enterobacteriaceae |
| title_full_unstemmed | Increasing trends of colistin resistance in patients at high-risk of carbapenem-resistant Enterobacteriaceae |
| title_short | Increasing trends of colistin resistance in patients at high-risk of carbapenem-resistant Enterobacteriaceae |
| title_sort | increasing trends of colistin resistance in patients at high risk of carbapenem resistant enterobacteriaceae |
| topic | Carbapenem-resistant Enterobacteriaceae aminoglycosides tigecycline colistin resistance carbapenemase genes healthcare-associated infections |
| url | https://www.tandfonline.com/doi/10.1080/07853890.2022.2129775 |
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