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Related Experiment Videos

Microbiology of chronic hyperplastic sinusitis.

Katriina Kostamo1, Malcolm Richardson, Anni Virolainen-Julkunen

  • 1Department of Otorhinolaryngology, Helsinki University Central Hospital, Helsinki, Finland. katriina.kostamo@hus.fi

Rhinology
|January 1, 2005
PubMed
Summary

Microbiological findings in chronic hyperplastic sinusitis (CHS) patients showed high bacterial presence but no clear cause. Fungi, particularly Aspergillus, may contribute to CHS pathophysiology.

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Area of Science:

  • Otolaryngology
  • Microbiology
  • Immunology

Background:

  • Chronic hyperplastic sinusitis (CHS) presents heterogeneous mechanisms despite uniform symptoms and treatments.
  • Investigating microbiological factors may elucidate CHS etiology and chronicity.

Purpose of the Study:

  • To analyze microbiological findings in chronic hyperplastic sinusitis (CHS) patients.
  • To compare these findings with patient history to understand CHS causes.

Main Methods:

  • Sinus mucus samples collected from 30 CHS patients during endoscopic sinus surgery.
  • Nasal lavage samples from 20 healthy volunteers.
  • Bacterial and fungal cultures, eosinophil staining, and histological analysis performed.

Main Results:

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  • Bacterial cultures were positive in 93% of CHS patients versus 70% in controls.
  • Staphylococcus aureus and coagulase-negative Staphylococci were prevalent in both groups.
  • Fungal presence (Aspergillus) detected in 7 CHS patients, absent in controls.

Conclusions:

  • Microbiological factors alone may not fully explain the chronic nature of CHS.
  • Fungi, specifically Aspergillus, might play a role in CHS pathophysiology.
  • Findings suggest altered paranasal sinus environment and normal flora changes in CHS.