Intermediate
Technical
IVT
viral wheeze
Respiratory wheeze triggered by viral respiratory infections in young children, distinct from asthma.
Full Definition
Viral wheeze refers to episodic whezing that occurs exclusively during viral respiratory tract infections in young children, typically those under 3 years of age. Unlike asthma, viral wheeze does not occur between viral episodes and usually resolves as the child's airways mature. The condition is thought to result from small airway inflammation and edema caused by viral pathogens, particularly respiratory syncytial virus and rhinovirus. Management focuses on bronchodilators during acute episodes.
Usage
Usage note: Hyphenate 'viral-induced wheeze' but not 'viral wheeze' when used as a compound modifier.
In Context
- "The toddler's wheeze only occurred during viral illnesses, consistent with viral wheeze rather than asthma." — Pulmonology consultation
- "Viral wheeze typically improves with age as airway diameter increases relative to inflammation." — Patient education material
Also known as
viral-induced wheeze
episodic viral wheeze
Contrasted with
allergic asthma
Don't confuse with
asthma
bronchiolitis