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Published on: May 23, 2021
Acute mastoiditis in children: a retrospective study of 188 patients
S Quesnel1, M Nguyen, S Pierrot
1AP-HP, Necker Hospital, ENT Department, Paris, France. steph.quesnel@gmail.com
Insights
This study defines acute mastoiditis (AM) characteristics in children, finding Streptococcus pneumoniae as the most common cause. Optimized treatment involves targeted antibiotics and mastoidectomy when necessary, avoiding routine surgery.
Area of Science:
- Pediatric Otolaryngology
- Infectious Diseases
- Microbiology
Background:
- Acute mastoiditis (AM) is a significant pediatric ear infection requiring careful management.
- Understanding the clinical and bacteriological profiles of AM is crucial for effective treatment strategies.
Purpose of the Study:
- To characterize the clinical and bacteriological features of acute mastoiditis in children.
- To optimize the diagnostic work-up and treatment protocols for pediatric AM.
Main Methods:
- Retrospective analysis of 188 children diagnosed with AM over a 7-year period.
- Inclusion criteria: children aged 3 months to 15 years presenting to a pediatric ENT emergency center.
- Data collection included clinical presentation, microbiological findings, treatment, and outcomes.
Main Results:
- Streptococcus pneumoniae was the most frequent pathogen (51%), followed by Streptococcus pyogenes (11.5%).
- 33% of microbiological samples were negative; anaerobes and Gram-negative bacteria were associated with surgical failures.
- 36.2% of patients required surgery; recurrences were more common with S. pneumoniae AM.
- Lateral sinus thrombosis was the primary complication (3.2%).
Conclusions:
- A standardized management protocol for pediatric AM was developed, emphasizing non-systematic surgery.
- Surgical intervention, when indicated, should include mastoidectomy.
- Treatment involves broad-spectrum intravenous antibiotics, adjusted based on microbiological results, with mastoidectomy considered if infection persists after 48 hours.
Objective:
The aim of this study is to define the clinical and bacteriological characteristics of acute mastoiditis (AM) in children in order to optimize diagnostic work-up and treatment.
Methods:
In this retrospective study, 188 children between 3 months and 15 years of age (15±24 months; median±SD) were referred to our pediatric ENT emergency center for AM during a 7-year period (December 2001-January 2008).
Results:
Fifty seven percent were male and 43% were female. Clinical follow-up duration was 3.9±0.7 months (mean±SEM). The incidence of AM remained stable during the whole study period. Microbiological samples (n=236) were negative in 33% of cases. The most frequently isolated germs were Streptococcus pneumoniae (51%), Streptococcus pyogenes (11.5%), Anaerobes (6.5%), and coagulase-negative Staphylococcus (6.5%). Paracentesis, puncture of retro auricular abscess under local anesthesia, and peroperative samples all contributed to isolate the involved germ(s). All the patients were hospitalized and received intravenous antibiotics, and 36.2% (n=68) underwent surgery. Several surgical procedures were necessary in 4 cases (2.1%). AM recurrences requiring a second hospitalization were observed in 8 patients (4.3%). The only observed complication was lateral sinus thrombosis (n=6; 3.2%). Surgical failures, requiring more than one surgical procedure, were more frequent in case of: (i) presence of Anaerobes (p≤0.001) or Gram-negative bacteria (p≤0.05) in microbiological samples; (ii) surgical drainage without mastoidectomy (p≤0.001). Recurrences were more frequent in AM due to Streptococcus pneumoniae.
Conclusions:
Based on our findings and on literature data, a protocol was established in order to standardize the management of pediatric AM in our center. The mains points are: no systematic surgery; if surgery is indicated, it must encompass a mastoidectomy; broad-spectrum intravenous antibiotic treatment covering the most commonly involved germs (3rd generation cephalosporin) and secondarily adapted to the results of microbiological samples. If the infection is not controlled after 48 h of intravenous antibiotherapy, a mastoidectomy had to be performed.
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