A high percentage of moderate-severe disease and a significant correlation of the severity and MCCTs suggest an important heterogeneity in this disease severity group. Discriminating between moderate and severe rhinitis should help to obtain homogeneous populations and develop improved disease management strategies.
Among nasal peak flow measurements, PEFI is the most appropriate objective tool for assessing nasal patency in AR. Peak flows can indicate underlying mucosal inflammation and are more sensitive to assess score changes after treatment than cross-sectional assessment at the initial visit.
Although both patients with non-AR and those with AR had good steroid response, the patients with non-AR had less improvement than the patients with AR. Patients with NINAR had the worst treatment outcome among the non-AR phenotypes.
In the 12-week treatment evaluation of nasal polyposis, pretreatment with oral steroids had no significant advantage for most nasal symptoms other than earlier relief; however, combined oral and nasal steroid therapy more effectively improved hyposmia, polyps size, and nasal airflow. Polyps size grade 3 and/or endoscopic signs of meatal discharge predisposed to a poorer treatment outcome.
The use of nasal steroids with oxymetazoline was more effective over 6 weeks than nasal steroids alone in improving blocked nose, hyposmia, nasal mucociliary clearance, and polyp size in treatment of nasal polyposis. There was no evidence of rebound congestion after 4 weeks of oxymetazoline treatment.
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