Tympanocentesis for Ear Infections
Tympanocentesis is the removal of fluid from behind the eardrum. The doctor uses a special needle with a tube attached to collect the sample of fluid. A culture and sensitivity test is usually done on the sample of fluid.
Before the test, your child may get medicine to help him or her relax. Or a doctor or nurse may apply medicine directly to the eardrum to numb the area. If there is a lot of earwax, it is removed from the ear before the test begins.
The child is held very still while the fluid is removed. You may be asked to help with holding your child still.
In most cases, the eardrum heals within 3 to 5 days after the procedure.
Why It Is Done
This procedure is not often done. It is sometimes done:
In most cases, doing a culture and sensitivity test on fluid collected by tympanocentesis can identify the bacteria causing the infection. This helps the doctor prescribe an antibiotic that is more likely to work. Sometimes no bacteria are found in the fluid.
What To Think About
The child has to stay very still during the procedure.
Tympanocentesis does not prevent repeated ear infections (recurrent otitis media).
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