Characteristics of Patients with Spontaneous Cerebrospinal Fluid Otorrhea Treated with a Transmastoid Repair

Results: Seventeen patients were included in the study. The mean age was 61 years and 9 patients were female. Average length of follow up was 21 months. Average body mass index (BMI) was 34.7 kg/m2. Evidence of partial or empty sella was present in 82% of MRIs reviewed. Sixty-five percent of patients had an encephalocele. Forty-seven percent had more than one bony defect along the tegmen tympani or mastoideum. All 17 patients were repaired initially using a transmastoid approach. The patient with the highest BMI (50.2 kg/m2) required revision surgery via a middle fossa approach 27 months after initial repair due to a recurrent leak. Characteristics of Patients with Spontaneous Cerebrospinal Fluid Otorrhea Treated with a Transmastoid Repair.