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Updated: Jun 1, 2026

A Novel Rescue Technique for Difficult Intubation and Difficult Ventilation
Published on: January 17, 2011
Approach to a child with lower airway obstruction and bronchiolitis
Sudhanshu Grover1, J Mathew, Arun Bansal
1Department of Pediatrics, Advanced Pediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh 160012, India.
Insights
Bronchiolitis, a common cause of lower airway obstruction in young children, is typically diagnosed clinically. Treatment focuses on supportive care, with good outcomes usually observed.
Area of Science:
- Pediatric Pulmonology
- Infectious Diseases
Background:
- Lower airway obstruction presents with wheeze and hyperinflated chest, indicating respiratory distress.
- Common etiologies include bronchiolitis, asthma, pneumonia, and foreign body aspiration.
- Bronchiolitis predominantly affects children aged 2 months to 2 years.
Purpose of the Study:
- To review the clinical presentation, diagnosis, and management of lower airway obstruction, with a focus on bronchiolitis.
- To highlight the role of clinical assessment in diagnosing bronchiolitis.
- To outline current treatment strategies and expected outcomes.
Main Methods:
- Clinical diagnosis based on characteristic signs and symptoms.
- Limited role of investigations in routine diagnosis.
- Supportive care as the primary treatment modality.
Main Results:
- Respiratory Syncytial Virus (RSV) is the most frequent cause of bronchiolitis.
- Clinical diagnosis is sufficient for most cases.
- Supportive therapy, including humidified oxygen, is effective.
Conclusions:
- Bronchiolitis is a common pediatric condition with a predominantly clinical diagnosis.
- Management relies on supportive care; inhaled epinephrine or steroids may aid non-responders.
- The condition is generally associated with a favorable prognosis.
Abstract:
Lower airway obstruction can occur at the level of trachea, bronchi or bronchioles. It is characterized clinically by wheeze and hyperinflated chest, apart from other signs of respiratory distress. Common causes include bronchiolitis, asthma, pneumonia, laryngotracheo-bronchitis, congenital malformations and foreign body inhalation. Bronchiolitis usually occurs in children aged 2 months to 2 years. It is most commonly caused by respiratory syncytial virus infection. The diagnosis is mainly clinical, and investigations have a very limited role. Humidified oxygen and supportive therapy are the mainstays of treatment. A trial of inhaled epinephrine or parenteral steroids may be considered for non-responders. It is usually associated with good outcome.
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