tympanocentesis


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myringotomy

 [mir″ing-got´ah-me]
incision of the tympanic membrane, usually performed to relieve pressure and allow drainage of serous or purulent fluid from the middle ear. Sometimes, as in the case of serous otitis media, a ventilating tube called a grommet is inserted to permit continuous ventilation and avoid a chronic middle ear problem with fluid accumulation, pain, and loss of hearing. When a simple myringotomy is done for purposes of draining purulent material resulting from recurrent suppurative otitis media, care should be taken to avoid contamination by the fluid. Eardrops may be prescribed if there is fluid in the ear. The ear should be kept dry for two weeks after the procedure, with no fluid entering the ear until the myringotomy site in the eardrum is healed.
Myringotomy and insertion of a tympanoplasty tube as treatment for otitis media. From Frazier et al., 2000.

tym·pa·no·cen·te·sis

(tim'pă-nō-sen-tē'sis),
Puncture of the tympanic membrane with a needle to aspirate middle ear fluid.
[tympano- + G. kentēsis, puncture]

tym·pa·no·cen·te·sis

(tim'pă-nō-sen-tē'sis)
Puncture of the tympanic membrane with a needle to aspirate middle ear fluid.
[tympano- + G. kentēsis, puncture]
References in periodicals archive ?
Presently, the most common bacteria present on tympanocentesis is called non-typable Haemophilus influenzae, at least half of which produce an enzyme called beta-lactamase that makes them resistant to amoxicillin.
A small number of children were referred to consultation with otorhinolaryngologist and none had undergone tympanocentesis, which is probably related to the small number of children with recurrent AOM or complications, such that the majority of AOM episodes is likely handled in pediatric offices and treated with oral antibiotics.
From the tympanocentesis procedures, a pathogen was identified in 162 cases: nontypable Haemophilus influenzae (n = 94); S.
* Bacterial eradication can be proven only by double tympanocentesis.
If resistant S pneumoniae was the isolate identified with tympanocentesis, clindamycin became another choice (TABLE 2).
To evaluate the effectiveness of this protocol, doctors at the University of Rochester Medical College used the protocol, including tympanocentesis and culture, in 254 children with an ear infection.
About 50% of patients have evidence of otitis media, with bacteria growing out in studies on tympanocentesis. Otitis media in the setting of bronchiolitis should be treated as if bronchiolitis were not there.
In acute otitis media, tympanocentesis performed before and after drug therapy has been used in several studies to determine the clinical relevance of antimicrobial resistance.
Additionally, tympanocentesis was performed before the study drug was administered and pathogens from middle-ear fluid samples were isolated and identified.
For children who have experienced clinical treatment failures, the CDC suggests performing tympanocentesis to determine the antibiotic susceptibility of the etiologic agent.
A tympanocentesis for culture and sensitivity of middle ear effusion is performed in rare cases.