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Bacteriology of endoscopically normal maxillary sinuses.

R S Jiang1, K L Liang, J W Jang

  • 1Department of Otolaryngology, Taichung Veterans General Hospital, Taiwan, Republic of China.

The Journal of Laryngology and Otology
|February 9, 2000
PubMed
Summary

Endoscopically normal maxillary sinuses are not sterile, as this study found bacteria present in samples from patients undergoing sinoscopy. This challenges the assumption of sterility in healthy sinuses, impacting our understanding of sinus health.

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Area of Science:

  • Otolaryngology
  • Microbiology
  • Medical Bacteriology

Background:

  • The assumption that endoscopically normal maxillary sinuses are sterile is common in clinical practice.
  • Understanding the microbial flora of healthy sinuses is crucial for diagnosing and treating sinonasal diseases.

Purpose of the Study:

  • To investigate the bacteriology of maxillary sinuses considered endoscopically normal.
  • To determine if bacteria are present in the absence of visible lesions or secretions.

Main Methods:

  • Transantral sinoscopy was performed to identify endoscopically normal maxillary sinuses.
  • Swab and mucosal biopsy specimens were collected from 69 patients.
  • Aerobic and anaerobic cultures were performed on collected specimens.

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Main Results:

  • Bacterial cultures were positive in 62.3% of swab specimens and 57.1% of mucosal specimens from patients with chronic paranasal sinusitis.
  • Culture rates in patients without sinusitis were 46.7% for swabs and 41.2% for mucosal specimens.
  • These findings indicate the presence of bacteria in endoscopically normal maxillary sinuses.

Conclusions:

  • Endoscopically normal maxillary sinuses are not sterile.
  • The presence of bacteria in healthy sinuses warrants further investigation into their role in sinonasal health and disease.