Outpatient management of pediatric acute mastoiditis.

Objective: Evaluate the Montreal Children's Hospital experience with outpatient management of uncomplicated acute mastoiditis with parenteral antibiotic therapy alone and determine if it is a safe alternative to inpatient management.

Subjects And Method: A retrospective review of pediatric patients diagnosed with acute mastoiditis at a tertiary care pediatric hospital between 2013 and 2015 was performed. Patients with syndromes, immunodeficiency, cholesteatoma, chronic otitis media, cochlear implant in the affected ear, or incidental mastoid opacity were excluded.

Results: 56 children age 6 months to 15 years old were treated for acute mastoiditis, including 29 hospitalizations and 27 outpatients. Patients managed as outpatient with daily intravenous ceftriaxone had a 93% cure rate. Eighteen hospitalized and one outpatient had complications of acute mastoiditis. Children with complications were more likely to be febrile (p = 0.045). Two patients failed outpatient therapy and were admitted; one for myringotomy and piperacillin-tazobactam treatment and one required a mastoidectomy. 4/27 children treated as outpatient underwent myringotomy and tube insertion, 2 underwent myringotomy and tube along with admission and 21 did not require tube insertion. The average total duration of intravenous antibiotic therapy was respectively 4.9 and 18.9 days in the outpatient and hospitalized group. The average duration of admission was 5.9 days.

Conclusion: Outpatient medical therapy of uncomplicated pediatric mastoiditis is safe, successful, and efficient. Benefits include efficient use of surgical beds, cost savings and patient and family convenience. Careful patient selection and close monitoring are keys for successful outcome.