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Foreign body neonatal otitis media in infants
T Palva1, C Northrop, H Ramsay
1Department of Otolaryngology, University of Helsinki, Finland.
Summary
Amniotic fluid cellular content (AFCC) entering the middle ear during birth can cause chronic inflammation and granulation tissue, potentially leading to recurrent otitis media in infants. Early detection and intervention are crucial for preventing long-term hearing issues.
Area of Science:
- Otolaryngology
- Pediatric Pathology
- Developmental Biology
Background:
- Neonatal otitis media, historically described by Aschoff and Wittmaack, can result from amniotic fluid cellular content (AFCC) exposure.
- AFCC's spread within middle ear compartments causes histologic changes, with severity correlating to AFCC quantity.
- Phagocytosis of AFCC elements occurs postnatally, but initial inflammatory responses include polyps and granulation tissue.
Observation:
- Histologic analysis of ten infant temporal bones (5 months to 1 year 11 months) was performed.
- Sections were examined for the presence and stage of pathological tissue changes in the middle ear and mastoid antrum.
- Specific attention was given to cases involving meconium-stained amniotic fluid.
Findings:
- Massive pseudocystic granulation tissue was observed in an 8-month-old infant exposed to thick meconium.
- Severe middle ear changes were noted in two 5-month-old infants, one with AFCC traces.
- Both acute and chronic inflammatory changes were present concurrently in some specimens, with minor long-standing changes in older children.
Implications:
- Neonatal otitis media due to AFCC can lead to extensive granulation tissue and susceptibility to infections.
- Chronic inflammation may obstruct middle ear aeration and drainage, potentially causing irreversible adhesive otitis media.
- Establishing a database for neonates born through meconium-stained fluid is recommended for comparative studies and guiding surgical interventions.