Tympanocentesis

Tympanocentesis is the drainage of fluid from the middle ear usually caused by otitis media, by using a small-gauge needle to puncture the tympanic membrane, also known as the eardrum.

Main indication for tympanocentesis is failed treatment with antibiotics

It is sometimes referred to as a "tap" and, when conducted twice as part of a clinical trial of medication, a "double tap."^[1]

References

↑ A study in which tympanocentesis is performed at study entry and during therapy.

http://www.webmd.com/a-to-z-guides/Tympanocentesis-for-ear-infections
http://www.fda.gov/ohrms/DOCKETS/ac/01/briefing/3802b1_02_FDA.pdf

Operations, surgery and other procedures on the ear (ICD-9-CM V3 18–20+95.4, ICD-10-PCS 09)

Outer ear	Otoplasty

Middle ear	Myringotomy Stapedectomy Tympanoplasty Tympanocentesis Myringoplasty

Inner ear	Mastoidectomy Epley maneuver

Diagnosis	Caloric reflex test ABR Electronystagmography

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