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Cholesteatoma disease recidivism after canal wall up tympanomastoidectomy with or without obliteration: a randomized controlled trial (CLEAR-EAR).

The primary aim of this study is to investigate whether a canal wall up (CWU) tympanomastoidectomy with obliteration of the mastoid and paratympanic or epitympanic spaces reduces cholesteatoma recurrence and residual rates compared to the same…