Direct MALDI-TOF MS-based method for rapid identification of microorganisms and antibiotic susceptibility testing in urine specimens
Background and Objectives: Urinary tract infections (UTIs) are considered as a major public health issue, often causing complications. Although the traditional cultivation approach is reliable in diagnosis, it is time-consuming, leading to delay in treatment and contributing to antibiotic resistanc...
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| Format: | Article |
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Tehran University of Medical Sciences
2025-02-01
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| Series: | Iranian Journal of Microbiology |
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| Online Access: | https://ijm.tums.ac.ir/index.php/ijm/article/view/4983 |
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| author | Fouad Assi Brahim Jabri Lamia Melalka Yassine Sekhsokh Mimoun Zouhdi |
| author_facet | Fouad Assi Brahim Jabri Lamia Melalka Yassine Sekhsokh Mimoun Zouhdi |
| author_sort | Fouad Assi |
| collection | DOAJ |
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Background and Objectives: Urinary tract infections (UTIs) are considered as a major public health issue, often causing complications. Although the traditional cultivation approach is reliable in diagnosis, it is time-consuming, leading to delay in treatment and contributing to antibiotic resistance due to suboptimal empirical treatments. This study aimed to evaluate the performance of a direct, rapid identification technique using MALDI-TOF MS for pathogen identification and antibiotic susceptibility testing in UTIs, aiming to reduce diagnostic time compared to standard culture methods.
Materials and Methods: In the span of a year, 458 monomicrobial urine samples were analysed using both the standard bacterial culture method and the direct MALDI-TOF MS-based method. Antibiotic susceptibility was directly tested on 20 samples using the disk diffusion method.
Results: The direct identification technique accurately identified 92.14% of microorganisms at the genus level and 60.92% at the species level within an hour, significantly faster than the 24 to 48 hours required by traditional culture methods. The direct antibiotic susceptibility test results were consistent with the standard post-culture method ranging from 60.00% to 100%.
Conclusion: Direct identification using MALDI-TOF MS can improve UTI management by enabling faster pathogen identification and targeted treatments, potentially reducing antibiotic resistance. Further studies are needed in terms of enhancing its clinical utility and reliability.
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| format | Article |
| id | doaj-art-3f3a47cd4ece4790bdf2bd59b635e545 |
| institution | Kabale University |
| issn | 2008-3289 2008-4447 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Tehran University of Medical Sciences |
| record_format | Article |
| series | Iranian Journal of Microbiology |
| spelling | doaj-art-3f3a47cd4ece4790bdf2bd59b635e5452025-02-09T09:01:28ZengTehran University of Medical SciencesIranian Journal of Microbiology2008-32892008-44472025-02-01171Direct MALDI-TOF MS-based method for rapid identification of microorganisms and antibiotic susceptibility testing in urine specimensFouad Assi0Brahim Jabri1Lamia Melalka2Yassine Sekhsokh3Mimoun Zouhdi4Centre for Doctoral Studies in Life and Health Sciences, Faculty of Medicine and Pharmacy, Mohammed V University in Rabat, Rabat, Morocco; Central Laboratory of Bacteriology, Serology and Hygiene - Ibn Sina University Hospital Centre of Rabat, Rabat, MoroccoLaboratory of Research in Care, Health, and Environment, Higher Institute of Nursing Professions and Technics of Health, Rabat, Morocco; Research Laboratory Oral Biology and Biotechnology, Faculty of Dental Medicine, Mohammed V University Rabat, Rabat, MoroccoCentre for Doctoral Studies in Life and Health Sciences, Faculty of Medicine and Pharmacy, Mohammed V University in Rabat, Rabat, MoroccoCentre for Doctoral Studies in Life and Health Sciences, Faculty of Medicine and Pharmacy, Mohammed V University in Rabat, Rabat, Morocco; Department of the P3 Research and Biosafety Laboratory, Mohammed V Military Training Hospital, Rabat, MoroccoCentre for Doctoral Studies in Life and Health Sciences, Faculty of Medicine and Pharmacy, Mohammed V University in Rabat, Rabat, Morocco; Central Laboratory of Bacteriology, Serology and Hygiene - Ibn Sina University Hospital Centre of Rabat, Rabat, Morocco Background and Objectives: Urinary tract infections (UTIs) are considered as a major public health issue, often causing complications. Although the traditional cultivation approach is reliable in diagnosis, it is time-consuming, leading to delay in treatment and contributing to antibiotic resistance due to suboptimal empirical treatments. This study aimed to evaluate the performance of a direct, rapid identification technique using MALDI-TOF MS for pathogen identification and antibiotic susceptibility testing in UTIs, aiming to reduce diagnostic time compared to standard culture methods. Materials and Methods: In the span of a year, 458 monomicrobial urine samples were analysed using both the standard bacterial culture method and the direct MALDI-TOF MS-based method. Antibiotic susceptibility was directly tested on 20 samples using the disk diffusion method. Results: The direct identification technique accurately identified 92.14% of microorganisms at the genus level and 60.92% at the species level within an hour, significantly faster than the 24 to 48 hours required by traditional culture methods. The direct antibiotic susceptibility test results were consistent with the standard post-culture method ranging from 60.00% to 100%. Conclusion: Direct identification using MALDI-TOF MS can improve UTI management by enabling faster pathogen identification and targeted treatments, potentially reducing antibiotic resistance. Further studies are needed in terms of enhancing its clinical utility and reliability. https://ijm.tums.ac.ir/index.php/ijm/article/view/4983Matrix-assisted laser desorption-ionization;Urine;Bacteria;Urinary tract infection;Antibiogram |
| spellingShingle | Fouad Assi Brahim Jabri Lamia Melalka Yassine Sekhsokh Mimoun Zouhdi Direct MALDI-TOF MS-based method for rapid identification of microorganisms and antibiotic susceptibility testing in urine specimens Iranian Journal of Microbiology Matrix-assisted laser desorption-ionization; Urine; Bacteria; Urinary tract infection; Antibiogram |
| title | Direct MALDI-TOF MS-based method for rapid identification of microorganisms and antibiotic susceptibility testing in urine specimens |
| title_full | Direct MALDI-TOF MS-based method for rapid identification of microorganisms and antibiotic susceptibility testing in urine specimens |
| title_fullStr | Direct MALDI-TOF MS-based method for rapid identification of microorganisms and antibiotic susceptibility testing in urine specimens |
| title_full_unstemmed | Direct MALDI-TOF MS-based method for rapid identification of microorganisms and antibiotic susceptibility testing in urine specimens |
| title_short | Direct MALDI-TOF MS-based method for rapid identification of microorganisms and antibiotic susceptibility testing in urine specimens |
| title_sort | direct maldi tof ms based method for rapid identification of microorganisms and antibiotic susceptibility testing in urine specimens |
| topic | Matrix-assisted laser desorption-ionization; Urine; Bacteria; Urinary tract infection; Antibiogram |
| url | https://ijm.tums.ac.ir/index.php/ijm/article/view/4983 |
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