[Bacteriology of occluded nasolacrimal ducts in infants]

V Prokosch1, J-E Prokosch, J Promesberger

  • 1Universitätsaugenklinik, Universität Münster. verena.prokosch@ukmuenster.de

Klinische Monatsblatter Fur Augenheilkunde
|July 21, 2010
PubMed

Insights

Congenital lacrimal duct stenosis (cLDO) frequently involves bacterial infections. Chloramphenicol, fusidic acid, and ciprofloxacin are effective treatments, while erythromycin and gentamicin are not recommended for cLDO.

Area of Science:

  • Ophthalmology
  • Microbiology
  • Pediatrics

Context:

  • Congenital lacrimal duct stenosis (cLDO) often leads to bacterial dacryocystitis.
  • Current treatment guidelines recommend conservative antimicrobial therapy for infants under six months, followed by lacrimal duct irrigation and silicone tube intubation for older children.
  • Understanding the current bacterial spectrum and antibiotic resistance patterns in cLDO is crucial for optimizing treatment strategies.

Purpose:

  • To analyze the prevalent bacterial spectrum in congenital lacrimal duct stenosis (cLDO) in children aged 6 to 16 months.
  • To compile a bacterial resistogram to guide the selection of appropriate antimicrobial therapy for cLDO.
  • To evaluate the efficacy of commonly used antibiotics against isolated bacterial strains from cLDO.

Summary:

  • A study of 66 children with cLDO revealed a 97% culture-positive rate, with frequent co-colonization by multiple bacterial strains (87%).
  • Gram-positive bacteria, particularly Streptococcus pneumoniae, were most common (72%), followed by Gram-negative rods (85%).
  • Chloramphenicol, fusidic acid, and ciprofloxacin demonstrated the highest efficacy, while erythromycin and gentamicin were found to be insufficient.

Impact:

  • This research provides an updated bacterial profile and antibiotic sensitivity data for cLDO, aiding clinicians in selecting effective treatments.
  • Identifies specific antibiotics (chloramphenicol, fusidic acid, ciprofloxacin) as effective for cLDO, contrasting with less effective options like erythromycin and gentamicin.
  • Highlights the importance of microbiological sampling in refractory cLDO cases to ensure targeted antimicrobial therapy and improve patient outcomes.
Abstract

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