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Updated: Aug 14, 2026

Protocol and Guidelines for Point-of-Care Lung Ultrasound in Diagnosing Neonatal Pulmonary Diseases Based on International Expert Consensus
Published on: March 6, 2019
[Diagnostic pitfalls in childhood acute obstructive dyspnea]
X G Tovone1, J M Rasamoelisoa, F Rakoto
1Service de Réanimation Polyvalente, Centre Hospitalier de Soavinandriana (CENHOSOA), Centre Hospitalier Universitaire d'Antananarivo, BP 6-101 Antananarivo-Madagascar.
Insights
Diagnosing acute obstructive dyspnea in children is challenging. Respiratory endoscopy identified laryngeal papillomatosis as the cause in a severe asthma case, leading to successful surgical removal and patient recovery.
Area of Science:
- Pediatric Pulmonology
- Otolaryngology
- Medical Diagnostics
Context:
- Acute obstructive dyspnea in children presents diagnostic challenges due to diverse etiologies.
- Atopic status and severe asthma attacks can complicate the presentation of upper airway obstruction.
- Distinguishing between spasmodic and subglottic laryngitis is clinically difficult.
Purpose:
- To report a case of acute obstructive dyspnea in a child with atopic status and severe asthma.
- To highlight the diagnostic utility of respiratory endoscopy in identifying rare causes of childhood dyspnea.
- To discuss the pathophysiology of acute obstructive dyspnea and the role of laryngeal papillomatosis.
Summary:
- A 3.5-year-old boy with atopic status experienced severe asthma exacerbations and acute obstructive dyspnea.
- Respiratory tract endoscopic examination revealed laryngeal papillomatosis as the underlying cause.
- Surgical extraction of the laryngeal papilloma resulted in complete patient recovery.
Impact:
- Emphasizes the critical role of respiratory endoscopy in diagnosing childhood acute obstructive dyspnea.
- Suggests laryngeal papillomatosis as a potential contributing factor in recurrent respiratory infections.
- Provides insights into the differential diagnosis of upper airway obstruction in pediatric patients.
Abstract:
Diagnosis of an acute obstructive dyspnea is very difficult because there are many possible causes. The authors reported the case of a 3.5-year-old boy with an atopic status who presented iterative asthma attacks which evolute to severity in spite of an appropriate therapy. Then suffocation occurred with a serious infectious context. The cause of the disease was diagnosed by respiratory tract endoscopic exam which allowed to detect a laryngeal papillomatis. The surgical extraction of this tumour cured the patient. Physiopathology of acute obstructive dyspnea in child was discussed. Upper airway obstructions are separated from lower pulmonary diseases. Two syndromes are very difficult to separate among upper airway obstructions: spasmodic laryngitis and subglottal laryngitis. They are considered in fact as different outward signs of the same disease: subglottal laryngitis is the infectious evolutive form of a spasmodic laryngitis in which atopic status exists. Laryngeal papillomatosis would be a favourising factor of infection. The authors conclude that respiratory tract endoscopic exam is very important to diagnose childhood acute obstructive dyspnea.
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