Incidence of KOH Positive Elements in Chronic Discharging Ear -A Retrospective Study

Santosh U P1, H Jemima Parveen1, Arfan Nasser2

  • 1Department of Otorhinolaryngology, J J M Medical College, Davangere, Karnataka India.

Insights

Fungal infections are a significant cause of chronic suppurative otitis media (CSOM), especially when bacterial treatments fail. This study investigated fungal presence in CSOM patients, revealing a notable rate of positive results.

Area of Science:

  • Otolaryngology
  • Mycology
  • Infectious Diseases

Background:

  • Chronic suppurative otitis media (CSOM) is a persistent middle ear infection often linked to socioeconomic factors.
  • While bacterial causes are well-studied, the mycological aspects of CSOM are increasingly recognized as important.
  • Limited research exists on the fungal flora contributing to CSOM.

Purpose of the Study:

  • To investigate the prevalence of fungal flora in patients diagnosed with chronic suppurative otitis media.
  • To identify potential fungal causes of CSOM in patients attending a tertiary care center's ENT department.

Main Methods:

  • A retrospective study involving 100 CSOM patients was conducted.
  • Middle ear discharge samples were collected using sterile swabs, avoiding external canal contamination.
  • Samples were analyzed using potassium hydroxide (KOH) mounts to detect fungal elements.

Main Results:

  • The study included 100 patients aged 18 months to 87 years (mean age 37.27).
  • A significant proportion, 32.7% (33/100), of patients showed positive KOH mounts, indicating fungal presence.
  • 67.3% (68/100) of the study population were KOH negative.

Conclusions:

  • Fungal infections (mycotic otitis media) should be considered in cases of CSOM, particularly when standard antibacterial treatments are ineffective.
  • The findings highlight the importance of mycological evaluation in managing persistent CSOM.
  • Otologists should suspect fungal involvement in refractory otorrhea cases.