Biofilm density in the pediatric nasopharynx: recurrent acute otitis media versus obstructive sleep apnea

Giancarlo Zuliani1, Michael Carlisle, Aaron Duberstein

  • 1Division of Pediatric Otolaryngology, Department of Otolaryngology, Wayne State University School of Medicine, Detroit, Michigan 48201, USA.

Insights

Children with recurrent acute otitis media (RAOM) have significantly more biofilm on their adenoids than those with obstructive sleep apnea (OSA). Biofilms may play a key role in RAOM development and antibiotic resistance.

Area of Science:

  • Microbiology
  • Otolaryngology
  • Pediatrics

Background:

  • Biofilms are microbial communities resistant to antibiotics.
  • Recurrent acute otitis media (RAOM) is often antibiotic-resistant.
  • The role of biofilms in RAOM pathogenesis is under investigation.

Purpose of the Study:

  • To compare biofilm surface density on adenoids from children with RAOM versus obstructive sleep apnea (OSA).

Main Methods:

  • Scanning electron microscopy was used for comparative microanatomic study.
  • Adenoid tissues from 68 children (RAOM and OSA groups) were analyzed.
  • Patient age ranged from 3 months to 15 years.

Main Results:

  • Adenoids from RAOM patients showed extensive biofilm coverage (average 93.53%).
  • Adenoids from OSA patients had minimal biofilm coverage (average 1.01%).
  • The difference in biofilm coverage was statistically significant (p < 0.0001).

Conclusions:

  • Adenoids in RAOM patients are heavily colonized by biofilms.
  • Biofilms may contribute to antibiotic resistance and pathogenesis in RAOM.
  • Scant biofilm coverage was observed in OSA patients.
Abstract

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