The degree to which this occurs depends on how long patients have the disorder, according to the study to be published in the journal Otolaryngology – Head and Neck Surgery.
The authors said that while it was well-known that asthma was characterised by airway re-modelling, few studies had previously investigated this issue in patients with allergic rhinitis.
They studied 100 patients, 50 with short-term rhinitis and 50 with long-term – nine years on average.
They found those who experienced longer bouts with the disorder had significantly lower airflow in their nasal passages. Furthermore, 72% of the patients with long-term rhinitis had 'severe' nasal obstruction, the authors said.
Otolaryngology – Head and Neck Surgery (2008) 138: 725-729.