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Updated: Jun 22, 2026

Endaural Endoscopic Atticoantrotomy (Retrograde Mastoidectomy) using a Constant Suction Bone-drilling Technique
Published on: May 23, 2021
Advanced pediatric mastoiditis with and without intracranial complications
Jose P Zevallos1, Jeffrey T Vrabec, Robert A Williamson
1Bobby R. Alford Department of Otolaryngology, Texas Children's Hospital, Houston, USA.
Objectives/Hypothesis:
Recently, several groups have noticed an increase in cases of advanced pediatric mastoiditis and intracranial complications. The objective of this study was to review the bacteriology of advanced mastoiditis in pediatric patients, with the hypothesis that a difference in bacteriology might explain the development of an intracranial complication.
Study Design:
Retrospective chart review.
Methods:
All pediatric patients with coalescent mastoiditis requiring surgery treated at a tertiary care children's hospital between 2002 and 2007 were reviewed. Every patient included was treated either with mastoidectomy alone (for coalescent mastoiditis without an intracranial complication) or with transtemporal craniotomy (for coalescent mastoiditis with an intracranial complication). All patients had surgical specimens sent for pathology, Gram stain, and aerobic and anaerobic cultures.
Results:
One hundred eight pediatric patients with coalescent mastoiditis were identified: 58 (53%) presented with coalescent mastoiditis alone, 17 (16%) presented with coalescent mastoiditis and an intracranial complication, and 33 (31%) were excluded because they were treated with myringotomy and tubes alone, had incomplete data, or had an unclear diagnosis. Streptococcus pneumoniae was the most commonly cultured organism in patients with and without intracranial complications. Anaerobic isolates were present in 29.4% of patients with intracranial complications and 5.7% of patients without intracranial complications (P = .015).
Conclusions:
Nearly a quarter of pediatric patients with coalescent mastoiditis presented with a simultaneous intracranial complication. There was an increased incidence of anaerobic organisms in patients with intracranial complications compared to those without, indicating the importance of culture and antibiotic coverage appropriate for anaerobes. This series demonstrates the role of aggressive surgical management and close collaboration with the infectious disease service for long-term intravenous antibiotic therapy in treating pediatric patients with advanced mastoiditis.
Insights
Pediatric advanced mastoiditis cases are rising. Intracranial complications were linked to a higher incidence of anaerobic bacteria, emphasizing the need for appropriate antibiotic coverage.
Area of Science:
- Otolaryngology
- Pediatric Infectious Diseases
- Neurosurgery
Background:
- Increasing incidence of advanced pediatric mastoiditis and intracranial complications.
- Need to understand the role of bacteriology in complication development.
Purpose of the Study:
- Review the bacteriology of advanced mastoiditis in pediatric patients.
- Hypothesize that bacteriology differences explain intracranial complication development.
Main Methods:
- Retrospective chart review of pediatric patients with coalescent mastoiditis requiring surgery (2002-2007).
- Surgical specimens analyzed for pathology, Gram stain, aerobic, and anaerobic cultures.
- Patients categorized by mastoidectomy alone or transtemporal craniotomy for intracranial complications.
Main Results:
- 108 pediatric patients identified; 17% had intracranial complications.
- Streptococcus pneumoniae was the most common organism.
- Anaerobic isolates were significantly more frequent in patients with intracranial complications (29.4% vs. 5.7%, P=.015).
Conclusions:
- Nearly a quarter of pediatric patients with coalescent mastoiditis had simultaneous intracranial complications.
- Increased anaerobic organisms in complicated cases highlight the importance of anaerobic coverage.
- Aggressive surgical management and infectious disease collaboration are crucial for advanced pediatric mastoiditis.
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