MICROBIOLOGICAL PROFILE AND PATTERNS OF ANTIMICROBIAL RESISTANCE OF PATHOGENS IN EMPHYSEMATOUS PYELONEPHRITIS

Đức Huy Vũ 1,, Xuân Thái Ngô 1,2, Minh Sâm Thái 1,2, Thành Tuân Nguyễn 2
1 Cho Ray hospital
2 University of Medicine and Pharmacy at Ho Chi Minh City

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Abstract

Background: Emphysematous pyelonephritis is an acute and life-threatening urinary infection. Escherichia coli, Klebsiella pneumoniae are the most common pathogens. The initial use of empiric antibiotics guided by individual’s medical state as well as the patterns of local antibiotic resistance plays an important role in order to reduce mortality rate. Objective: To describe microbiological profile and analyze patterns of antimicrobial resistance of pathogens in emphysematous pyelonephritis (EPN). Methods: A retrospective descriptive case series study was performed at Cho Ray hospital from January 2011 to December 2019. Results: Of 176 cases of EPN reported, the pathogens isolated rate in urine, blood, and pus cultures were 40.9%, 23.5%, and 66.2%, respectively. E. coli is the most common organism isolated (83.3%), followed by K. pneumoniae (9.9%) and Enterococcus faecalis (1.5%). There were 2 cases of EPN caused by Candida. Extended spectrum β-lactamase (ESBL) producing bacteria accounted for 57.5% of EPN cases. The sensitivity rate of E.coli and K. pneumoniae Less than 30% of E. coli, and 40 - 60% of K. pneumoniae were sensitive to quinolone and third-generation and fourth-generation cephalosporins. The carbapenems are the antibiotic drugs with high efficiency (>90%). Conclusion: E.coli and K. pneumoniae were the most common causative agents. Antibiotic resistance is a concerning issue. Clinicians should pay more attention to the use of antibiotics according to the correct regimen in order to prolong the duration of the antibiotics' effectiveness and avoid increasing the incidence of drugs resistance.

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References

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