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Nasal cycle in children
Insights
Children aged 3-6 do not exhibit an alternating nasal cycle. Instead, they show a regular "solidary cycle" of nasal resistance fluctuations throughout the day, indicating non-constant nasal airflow.
Area of Science:
- Pediatric Otolaryngology
- Respiratory Physiology
Background:
- The nasal cycle, characterized by alternating congestion and decongestion of nasal cavities, is well-documented in adults.
- Previous research has not clearly established the presence or absence of a nasal cycle in young children.
Purpose of the Study:
- To investigate the presence of an alternating nasal cycle in children aged 3 to 6 years.
- To characterize the pattern and fluctuations of nasal resistance in this age group.
Main Methods:
- Utilized passive anterior rhinomanometry to measure nasal airflow resistance.
- Monitored nasal resistance patterns over a 6.25-hour period in children aged 3-6 years.
Main Results:
- Children aged 3-6 years did not demonstrate an alternating nasal cycle.
- A consistent, regular pattern of nasal resistance fluctuations, termed 'solidary cycle,' was observed.
- The mean duration of this 'solidary cycle' was 57 minutes, with significant amplitude in individual and total nasal resistance.
Conclusions:
- Young children (3-6 years) do not exhibit the typical alternating nasal cycle seen in adults.
- Nasal resistance in young children is dynamic, with regular, synchronized fluctuations ('solidary cycle') impacting total nasal airflow throughout the day.
Abstract:
With the passive anterior rhinomanometry technique, it was shown that children aged 3 to 6 years did not have an alternating nasal cycle. However, during a 61/4-hour period, there was a quite regular pattern of fluctuations of the nasal resistance. Important fluctuations of the nasal resistance in the left and right nasal cavity are happening in the same sense; we could call it "solidary movements" or "solidary cycle." This means that the total nasal resistance in these children is not at all constant during the day. The mean duration of such a "cycle" is 57 minutes, and the mean amplitude is 16.0 mm H2O for the left and right nasal cavity and 6.5 mm H2O for the total nasal resistance.