Tantawy, E., El-Sayed, H., Matar, H., Azhary, B. (2020). Multi- and Extensive-Drug Resistant Acinetobacter baumannii in ICUs: Risk Factors, Antimicrobial Resistance Profiles and co-harboring of gyrA and parC mutations. test, 29(4), 109-116. doi: 10.51429/EJMM29414
Enas A. Tantawy; Hanan M. El-Sayed; Heba M. Matar; Basma A. El- Azhary. "Multi- and Extensive-Drug Resistant Acinetobacter baumannii in ICUs: Risk Factors, Antimicrobial Resistance Profiles and co-harboring of gyrA and parC mutations". test, 29, 4, 2020, 109-116. doi: 10.51429/EJMM29414
Tantawy, E., El-Sayed, H., Matar, H., Azhary, B. (2020). 'Multi- and Extensive-Drug Resistant Acinetobacter baumannii in ICUs: Risk Factors, Antimicrobial Resistance Profiles and co-harboring of gyrA and parC mutations', test, 29(4), pp. 109-116. doi: 10.51429/EJMM29414
Tantawy, E., El-Sayed, H., Matar, H., Azhary, B. Multi- and Extensive-Drug Resistant Acinetobacter baumannii in ICUs: Risk Factors, Antimicrobial Resistance Profiles and co-harboring of gyrA and parC mutations. test, 2020; 29(4): 109-116. doi: 10.51429/EJMM29414

Multi- and Extensive-Drug Resistant Acinetobacter baumannii in ICUs: Risk Factors, Antimicrobial Resistance Profiles and co-harboring of gyrA and parC mutations

Egyptian Journal of Medical Microbiology
Volume 29, Issue 4, October 2020, Pages 109-116    PDF (313.93 K)
Document Type: New and original researches in the field of Microbiology.
DOI: 10.51429/EJMM29414
Authors
Enas A. Tantawy* 1; Hanan M. El-Sayed1; Heba M. Matar2; Basma A. El- Azhary1
1Microbiology & Immunology Department, Faculty of Medicine, Zagazig University, Egypt
2Anesthesiology & Intensive care Department, Faculty of Medicine, Zagazig University, Egypt
Abstract
Background: Acinetobacter baumannii is a gram-negative organism that is implicated in hospital acquired infections. It confers high resistance to many classes of antibiotics. Objectives: To assess the prevalence of multi and extensive drug-resistant (MDR & XDR) Acinetobacter baumannii, their risk factors, antimicrobial resistance patterns and the presence of gyrA and parC gene mutations of quinolone resistance. Methodology: The study included 106 ICU patients (56 males & 50 females), samples were collected according to sites of infections, Acinetobacter baumannii was identified by morphology, biochemical reactions &API 20NE. Antimicrobial susceptibility testing was performed by disc diffusion method. The E-test was used to detect MIC of Ciprofloxacin & Levofloxacin, then a polymerase chain reaction- restriction fragment length polymorphism was performed to detect the occurence of gyrA and parC gene mutations of Quinolone resistance. Results: Thirty isolates were identified as Acinetobacter baumannii, most of which from respiratory infections (P=0.005) prolonged hospitalization, antibiotic use, urinary catheters & ventilator supports were found to be risk factors of infections. Acinetobacter baumannii isolates showed high resistance to most of the tested antibiotics (29 MDR & 28 XDR). All isolates were resistant to Ciprofloxacin & Levofloxacin with the co-presence of gyrA and parC mutations in all isolates (P<0.001). Conclusions: There is an increased prevalence of MDR & XDR Acinetobacter baumannii among ICU infections. The co-occurrence of gyrA and parC mutations is associated with high resistance to Quinolones.
Keywords
Acinetobacter baumannii; ICU; gyrA; parC; drug resistance; MDR
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