Glossary

Term · Feeding Your Baby

Eustachian tube

Also: auditory tube, ear tube connecting to the throat

A narrow passage from the middle ear to the back of the throat that balances ear pressure. In babies, ear infections are linked to how it drains, including during feeding.

In plain words

The Eustachian tube is a narrow passage that runs from the middle ear to the back of the nose and throat. It keeps ear pressure balanced and lets fluid drain. In babies, the tube is shorter and more level than in adults, so fluid can drain less easily. This is one reason ear infections are common in young children. Feeding position and sucking may affect how the tube works, and researchers study this. Many babies with fluid or mild ear symptoms get better on their own. Call your pediatrician if your baby has a fever, pulls at an ear and seems in pain, or has trouble sleeping. Those signs call for a check.

The deeper version

The pediatric Eustachian tube is shorter, narrower, and more horizontal than the adult tube, with immature tensor veli palatini function, which predisposes infants to middle ear effusion and . A proposed mechanism for sucking and feeding is that suckling creates negative or positive pressure fluctuations that influence of nasopharyngeal contents into the middle ear, a hypothesis that is plausible but unconfirmed. The AAP clinical practice guideline on acute otitis media (Lieberthal et al., 2013) recommends watchful waiting in selected cases and recognizes age and symptom severity as the main drivers of decisions. Breastfeeding has been associated with lower otitis media rates in observational studies, although confounding is likely.

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Sources

  • Lieberthal AS et al. — The diagnosis and management of acute otitis media: clinical practice guideline, American Academy of Pediatrics, 2013
  • Bluestone CD — Eustachian tube: structure, function, role in otitis media. 2005

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