Residual Cholesteatoma After Endoscopic-Assisted Canal Wall-Up Tympanomastoidectomy: A Randomized Controlled Trial
This study aimed to determine the effectiveness of using endoscopes in reducing recidivism secondary to residual cholesteatoma after canal wall-up tympanomastoidectomy.
Study Design
Randomized clinical trial.
Setting
Tertiary referral center.
Patients
Patients with cholesteatoma, aged 7 to 70 years.
Interventions
Subjects were randomly allocated into two groups: endoscopic-assisted canal wall-up (EACWU; group 1) and conventional canal wall-up (CWU; group 2) techniques. Pars flaccida and pars tensa subgroups were analyzed according to the anatomic location of cholesteatoma origin.
Main Outcome Measures
Presence or absence of residual cholesteatoma, based on second look surgery, diffusion-weighted magnetic resonance imaging, or video-otoscopy at 12 and 18 months after surgery.
Results
In total, 57 ears were analyzed: 29 in group 1 and 28 in group 2. Group 1 revealed residual disease in 17.2% of ears, whereas group 2 had residual disease in 35.7% (p> 0.05) of the ears. In the pars tensa cholesteatoma subgroup, the incidence of residual disease was 13.3% for EACWU and 47.1% for the CWU technique (p
Source: Otology and Neurotology - Category: ENT & OMF Tags: Middle Ear And Mastoid Disease Source Type: research
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