July 28, 2016
font size

Ear Infection (cont.)

Medical Author:
Medical Editor:
Medical Editor:

How does the Eustachian tube change as a child gets older?

As a person ages, the Eustachian tube doubles in length and becomes more vertically positioned so that the nasopharyngeal orifice (opening) in the adult, is significantly below the tympanic orifice (the opening in the middle ear near the ear drum) than in a child. The greater length and particularly the slope of the tube as it grows serves more effectively to protect, aerate and drain the middle ear.

What microorganisms cause middle ear infection or inflammation?

Bacteria and viruses can cause otitis media. Bacteria such as Streptococcus pneumoniae (pneumococcus), nontypable Hemophilus influenzae, Pseudomonas, and Moraxella account for about 85% of cases of acute otitis media. Viruses account for the remaining 15%. Affected infants under six weeks of age tend to have infections from a variety of different bacteria in the middle ear.

What is the relationship between bottlefeeding and middle ear infection or inflammation?

Bottlefeeding is a risk factor for developing otitis media. The position of the breastfeeding child is better than that of the bottlefeeding position in terms of the function of the Eustachian tube that leads into the middle ear. If a child needs to be bottlefed, it is best to hold the infant rather than allow the child to lie down with the bottle. Ideally, the child should not take the bottle to bed. (In addition to increasing the chance for acute otitis media, falling asleep with milk in the mouth enhances the risk of tooth decay.)

What are the risk factors for acute middle ear infection or inflammation?

Children often develop upper respiratory infections prior to developing acute otitis media. Exposure to groups of children (as in child care centers) results in more frequent colds, and therefore more earaches. Exposure to air with irritants, such as tobacco smoke, also increases the chance of otitis media. Children with cleft palate or Down syndrome are more prone to ear infections. Any problems with the Eustachian tubes (for example, blockage, malformation, inflammation) will increase the risk of otitis media.

Children who have episodes of acute otitis media before six months of age tend to have more ear infections later in childhood.

Medically Reviewed by a Doctor on 11/2/2015

Source: MedicineNet.com

Women's Health

Find out what women really need.

Use Pill Finder Find it Now See Interactions

Pill Identifier on RxList

  • quick, easy,
    pill identification

Find a Local Pharmacy

  • including 24 hour, pharmacies

Interaction Checker

  • Check potential drug interactions
Search the Medical Dictionary for Health Definitions & Medical Abbreviations