Surgical results and quality of life after subtotal petrosectomy.

Purpose: Few data are available regarding subjective complaints and quality of life (QoL) after subtotal petrosectomy (STP). The purpose of our study was to assess long-term surgical results after STP, and to evaluate disease-specific, patient-reported outcomes including QoL and subjective hearing.

Methods: A retrospective cohort study, including a postal survey, was performed in the Amsterdam University Medical Centers (Amsterdam UMC) location Academic Medical Centre (AMC).

Hearing and hearing rehabilitation after obliteration of troublesome mastoid cavities.

Purpose: The purpose of this study is the evaluation of post-operative hearing threshold after revision surgery and obliteration of troublesome canal wall down mastoidectomy cavities (CWDMCs). The ability to use and tolerate conventional hearing aids (CHAs) was also evaluated.

Methods: A retrospective chart analysis of 249 patients with chronically draining CWDMCs who underwent revision surgery including obliteration of the mastoid cavity between 2007 and 2017 at the AMC location of the Amsterdam University Medical Centers (Amsterdam UMC) was performed.

Canal wall up surgery with mastoid and epitympanic obliteration in acquired cholesteatoma.

Objectives/hypothesis: The objective of this study was to evaluate surgical outcome and residual and recurrence rates of canal wall up (CWU) surgery with obliteration of the mastoid and epitympanum.

Study Design: Retrospective cohort study in a tertiary referral center.

Methods: Patients with (sequelae of) acquired cholesteatoma treated with primary or revision CWU surgery with obliteration of the epitympanum and mastoid were identified retrospectively from 2010 to 2014.

Modeled Analysis of Entrance of Colloid Suspensions into the Middle Ear Cavity.

Otic suspensions have a positive effect on the duration of otorrhea in children with a tympanostomy tube. It is still questionable how eardrops reach the middle ear. We hypothesized that otic suspensions do not pass the tympanostomy tube if the middle ear is dry but pass by diffusion when wet.

Shape of the Osseous External Auditory Canal and Its Relationship to Troublesome Cavities.

Objectives/hypothesis: On the basis of clinical observations, the shape of the osseous external auditory canal (OEAC) has often been seen as an etiological factor in troublesome cavities after modified radical mastoidectomy.

Study Design: Retrospective analysis of CT scans.

Methods: To assess the role of the shape of the OEAC in troublesome modified radical cavities using computed tomographic scans of three groups of patients (without pathology and with or without draining cavities), we determined the depth of the pretympanic recess (DPTR) and its anterior curvature (ACPTR).

The shape of the osseous external auditory canal and its relationship to chronic external otitis.

Background: In literature and based on clinical observations, the shape of the osseous external auditory canal (OEAC) has often been suggested to be an etiologic factor in chronic otitis externa (COE). However, to date, no evidence has been presented to confirm this correlation. The aim of this study was to see whether evidence of such a correlation exists, and if so, what shape of the OEAC is related to COE.