Middle Ear Obliteration with Blind-Sac Closure of the External Auditory Canal for Spontaneous CSF Otorrhea

Outcome ObjectivesTo (1) identify unique features of patients who underwent middle ear/mastoid obliteration with blind-sac closure of the external auditory canal for spontaneous cerebrospinal fluid (CSF) otorrhea and (2) explore outcomes.Study DesignCase series with chart review.SettingTertiary care center.Subjects and MethodsAdults treated for spontaneous cerebrospinal fluid otorrhea from 2007 through 2015 were reviewed and stratified into 2 groups based on the surgery performed: (1) 11 patients underwent middle ear/mastoid obliteration with blind-sac closure of the external auditory canal and (2) 26 patients underwent other procedures. Demographics, body mass index, revised cardiac risk index, Duke Activity Status Index scores, and anticoagulation use were documented. Audiologic data were gathered from pre- and postoperative visits. The primary outcome measure was leak recurrence. Complications were tabulated.ResultsPoor preoperative hearing was a relative indication for obliteration. Obliteration patie...