Work

Bacteriologic profile and antimicrobial resistance in infants aged 1 year or younger with congenital nasolacrimal duct obstruction

Year: 2025

Type: article

Abstract: PURPOSE: The aim of the study was to evaluate conjunctival flora and antibiotic susceptibility in infants aged 1 year or younger with congenital nasolacrimal duct obstruction (CNLDO), creating an overall profile of antimicrobial susceptibility. STUDY DESIGN: Retrospective. METHODS: The analysis was conducted at the Kazakh Eye Research Institute over a period of 6 years, from January 2017 to December 2022. Cultures were grown on various agars for bacterial and fungal analyses, with sensitivity testing via Vitek 2 Compact. RESULTS: We examined 1210 conjunctival cultures from infants with CNLDO, yielding 1212 isolates. Most were gram-positive bacteria (77.15%), with fewer gram-negative bacteria (22.28%) and fungi (0.57%). Among the gram-positive bacteria, Staphylococcus species (61.06%) were predominant, including S epidermidis (17.49%), S aureus (10.73%), and S saprophyticus (9.32%). Enterococcus species (6.52%) and Streptococcus species (6.02%) followed. Among the gram-negative bacteria, Escherichia coli (5.78%) was most prevalent, followed by Pseudomonas species. (4.54%), Enterobacter cloacae (3.71%), and Klebsiella species (3.63%). The majority of the fungi were Candida albicans, accounting for 4 isolates (0.33%). Most of the bacteria showed high sensitivity to moxifloxacin (92.52%), levofloxacin (88.99%), gentamicin (86.74%), vancomycin (86.52%), cefotaxime (85.27%), and ofloxacin (85.62%). High resistance was noted for erythromycin (32.84%), clindamycin (28.13%), and tetracycline (21.65%). CONCLUSION: In this study, we identified Staphylococcus, Enterococcus, and Streptococcus species and E coli as key CNLDO bacteria and highly responsive to antibiotics like levofloxacin and moxifloxacin. These findings guide effective antibiotic choices for CNLDO treatment, aiding in the prevention of antibiotic resistance.

Source: Japanese Journal of Ophthalmology

DOI: 10.1007/s10384-025-01197-0

Authors: Zhansaya Sultanbayeva, Botagoz Issergepova, Aida Kapanova, Kairat Ruslanuly

Institutions: Kazakh Eye Research Institute, Kazakhstan Medical University

Language: English

Topic: Ocular Infections and Treatments

Subfield: Ophthalmology

Field: Medicine

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: hybrid

Estimated APC paid: $3,790