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Updated: Aug 19, 2026

Rapid Viscoelastic Characterization of Airway Mucus Using a Benchtop Rheometer
Published on: April 21, 2022
Insights
Infants experiencing airway obstruction may have overlooked rhinorrhea as a cause. Investigating the root of nasal congestion is crucial, especially for infants who breathe only through their noses.
Area of Science:
- Pediatrics
- Otolaryngology
- Neonatology
Background:
- Life-threatening airway obstructions present complex challenges.
- Rhinorrhea (runny nose) can be an overlooked symptom contributing to airway obstruction.
- Infants under six months are obligate nasal breathers, making nasal patency critical.
Purpose of the Study:
- To highlight the importance of investigating rhinorrhea in cases of infant airway obstruction.
- To present case studies illustrating this diagnostic challenge.
- To emphasize the potential for delayed diagnosis and ongoing patient issues.
Main Methods:
- Case report review.
- Analysis of clinical presentations of airway obstruction in infants.
- Correlation of rhinorrhea with respiratory distress.
Main Results:
- Three cases of infants presenting with airway obstruction were identified.
- Rhinorrhea was a contributing factor or primary symptom in these cases.
- Failure to identify rhinorrhea etiology led to prolonged respiratory issues.
Conclusions:
- Rhinorrhea should be considered in the differential diagnosis of airway obstruction in infants.
- Thorough investigation of nasal symptoms is vital for prompt diagnosis and management.
- Early identification and treatment of rhinorrhea can prevent further complications in obligate nasal breathers.
Abstract:
Life endangering airway obstructions have many facets and causes. Rhinorrhea is a symptom whose etiology may be overlooked if an immediate crisis of airway obstruction is present. Unless the cause for the obstruction or rhinorrhea is investigated it may go undetected and continue to present further problems for the patient. This is especially true of infants under six months of age who are obligate nasal breathers. The following are three cases representing this problem.
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