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Group A streptococcal supraglottitis
Insights
Severe supraglottic infections in children can be caused by group A beta-hemolytic streptococci, mimicking Hemophilus influenzae epiglottitis. These infections may present with prolonged fever and require extended intubation despite antibiotic treatment.
Area of Science:
- Pediatric Infectious Diseases
- Bacteriology
- Otolaryngology
Background:
- Supraglottic infections in children often mimic epiglottitis, with Hemophilus influenzae historically being a common pathogen.
- Accurate and timely diagnosis is crucial for effective management of pediatric airway infections.
Observation:
- Four children presented with severe supraglottic infections clinically suggestive of Hemophilus influenzae epiglottitis.
- While epiglottic involvement was minimal in most cases, significant aryepiglottic fold inflammation was consistently observed.
Findings:
- Group A beta-hemolytic streptococcus was identified as the causative agent in all four patients.
- Bacteremia was present in two children, and the pathogen was isolated from the supraglottic area and trachea in two others.
- Patients experienced prolonged fever (6-22 days) and required extended tracheal intubation (2-16 days) despite appropriate antibiotic therapy.
Implications:
- Group A beta-hemolytic streptococcus should be considered in the differential diagnosis of severe pediatric supraglottic infections, even when clinical presentation suggests H. influenzae.
- The protracted course and potential for prolonged intubation highlight the need for careful monitoring and management of streptococcal supraglottitis.
- This underscores the importance of microbiological investigations to guide appropriate antimicrobial therapy in severe pediatric airway infections.
Abstract:
We describe four children with severe supraglottic infections caused by group A beta-hemolytic streptococci. In each case the clinical presentation suggested Hemophilus influenzae epiglottitis. In only one patient was there significant involvement of the epiglottis, whereas all had striking inflammation of the aryepiglottic folds. Group A beta-hemolytic streptococcus was isolated in blood cultures in two patients and from the supraglottic area and trachea in two others. Fever persisted for 6 to 22 days, and tracheal intubation was necessary for 2 to 16 days, despite appropriate antibiotic therapy. The evolution of streptococcal supraglottitis may be protracted, and it must be managed accordingly.