Myringotomy with Ventilation Tube Insertion

Harris, Tashneem; Linder, Thomas

Myringotomy with Ventilation Tube Insertion

Chapter in Book

2025-03-08

Journal Title

Open Access Atlas of Otolaryngology, Head & Neck Operative Surgery

Publisher

University of Cape Town

Department

Division of Otorhinolaryngology

Faculty

Faculty of Health Sciences

License

http://creativecommons.org/licenses/by-nc/4.0/

Abstract

Ventilation tubes (grommets) are generally inserted for refractory middle ear effusions with persistent conductive hearing loss, present for a minimum duration of 3 months and with hearing loss exceeding 25dB. They may also be inserted as an adjunct procedure in acute mastoiditis secondary to acute suppurative otitis media. Preoperative assessment: •Pneumatic otoscopy to confirm the diagnosis of middle ear effusion •Pure tone audiometry within the preceding 3months, or age appropriate hear-ing test, as well as tympanometry •A middle ear effusion may be caused by pathology (benign or malignant) in the nasopharynx which causes tubal dysfunction. Therefore, particularly in adult patients the nasopharynx should be examined, and the neck palpated for metastases from a nasopharyngeal ma-lignancy •A CSF leak may present as a middle ear effusion. A high index of suspicion is therefore necessary in the presence of a clear serous or watery effusion or when the history is suggestive of a CSF leak

Keywords

Myringotomy, Grommet, Ventilation Tube

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