Long-term status of middle-ear aeration post canal wall down mastoidectomy

T. Ezulia, Bee See Goh, L. Saim

Research output: Contribution to journalArticle

Abstract

BackgroundRetraction pocket theory is the most acceptable theory for cholesteatoma formation. Canal wall down mastoidectomy is widely performed for cholesteatoma removal. Post-operatively, each patient with canal wall down mastoidectomy has an exteriorised mastoid cavity, exteriorised attic, neo-tympanic membrane and shallow neo-middle ear.ObjectiveThis study aimed to clinically assess the status of the neo-tympanic membrane and the exteriorised attic following canal wall down mastoidectomy.MethodsAll post canal wall down mastoidectomy patients were recruited and otoendoscopy was performed to assess the neo-tympanic membrane. A clinical classification of the overall status of middle-ear aeration following canal wall down mastoidectomy was formulated.ResultsTwenty-five ears were included in the study. Ninety-two per cent of cases showed some degree of neo-tympanic membrane retraction, ranging from mild to very severe.ConclusionAfter more than six months following canal wall down mastoidectomy, the degree of retracted neo-tympanic membranes and exteriorised attics was significant. Eustachian tube dysfunction leading to negative middle-ear aeration was present even after the canal wall down procedure. However, there was no development of cholesteatoma, despite persistent retraction.

Original languageEnglish
JournalJournal of Laryngology and Otology
DOIs
Publication statusPublished - 1 Jan 2019

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Tympanic Membrane
Middle Ear
Cholesteatoma
Eustachian Tube
Mastoid
Ear

Keywords

  • Cholesteatoma
  • Mastoidectomy
  • Middle Ear Ventilation

ASJC Scopus subject areas

  • Otorhinolaryngology

Cite this

Long-term status of middle-ear aeration post canal wall down mastoidectomy. / Ezulia, T.; Goh, Bee See; Saim, L.

In: Journal of Laryngology and Otology, 01.01.2019.

Research output: Contribution to journalArticle

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N2 - BackgroundRetraction pocket theory is the most acceptable theory for cholesteatoma formation. Canal wall down mastoidectomy is widely performed for cholesteatoma removal. Post-operatively, each patient with canal wall down mastoidectomy has an exteriorised mastoid cavity, exteriorised attic, neo-tympanic membrane and shallow neo-middle ear.ObjectiveThis study aimed to clinically assess the status of the neo-tympanic membrane and the exteriorised attic following canal wall down mastoidectomy.MethodsAll post canal wall down mastoidectomy patients were recruited and otoendoscopy was performed to assess the neo-tympanic membrane. A clinical classification of the overall status of middle-ear aeration following canal wall down mastoidectomy was formulated.ResultsTwenty-five ears were included in the study. Ninety-two per cent of cases showed some degree of neo-tympanic membrane retraction, ranging from mild to very severe.ConclusionAfter more than six months following canal wall down mastoidectomy, the degree of retracted neo-tympanic membranes and exteriorised attics was significant. Eustachian tube dysfunction leading to negative middle-ear aeration was present even after the canal wall down procedure. However, there was no development of cholesteatoma, despite persistent retraction.

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