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Updated: Jul 3, 2025
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Endaural Endoscopic Atticoantrotomy Retrograde Mastoidectomy using a Constant Suction Bone-drilling Technique
Published on: May 23, 2021
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Risk factors for recurrent acute mastoiditis in pediatric patients: a registry-based cohort study
Yotam Aharon Shiner1,2, Orit Samuel3,4,5, Walid Saliba4,5
1Department of Otolaryngology, Head and Neck Surgery, Lady Davis Carmel Medical Center, Haifa, Israel. yotamsh@clalit.org.il.
Summary
Recurrent acute mastoiditis in children is linked to mastoidectomy and mastoid swelling during the initial episode. Mastoidectomy is the primary independent risk factor for recurrent acute mastoiditis.
Area of Science:
- Pediatric Otolaryngology
- Infectious Diseases
Background:
- Acute mastoiditis is a serious bacterial infection of the mastoid bone.
- Recurrence of acute mastoiditis presents unique challenges in pediatric management.
- Identifying risk factors for recurrence is crucial for effective treatment strategies.
Purpose of the Study:
- To characterize pediatric patients experiencing recurrent acute mastoiditis.
- To determine significant risk factors associated with recurrent acute mastoiditis in children.
Main Methods:
- Retrospective cohort study utilizing electronic medical records from a large Israeli Health Maintenance Organization.
- Identified and verified cases of acute mastoiditis in children hospitalized between 2008-2018.
- Compared characteristics of patients with recurrent mastoiditis to the initial cohort to identify risk factors.
Main Results:
- 1115 cases of acute mastoiditis were identified; 5.1% (57/1115) experienced recurrence.
- Recurrent cases predominantly affected children younger than 24 months (73.4%).
- Mastoidectomy (HR=4.7) and mastoid swelling (HR=2.55) during the first episode were significant risk factors; mastoidectomy was the sole independent predictor in multivariate analysis.
Conclusions:
- Mastoidectomy is a significant independent risk factor for recurrent acute mastoiditis in children.
- Swelling over the mastoid area during the initial episode also increases the risk of recurrence.
- These findings highlight the importance of considering surgical history and initial presentation in managing acute mastoiditis to prevent recurrences.
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