<unk>  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<unk>  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."
Tympanocentesis
Mastoidectomy
Tympanoplasty
Tympanometry
Pneumatic otoscopy
Orbital x-ray
Frontal sinus trephination
Tympanostomy tube