NVC Prevalence

Publication of data confirming nasal valve collapse as a contributor for most nasal obstruction sufferers.


A multi-site market research study evaluating symptom severity for nasal airway obstruction (NAO) patients and the prevalence of anatomical causes was published in the June 2018 issue of ENT Journal. Results show that the prevalence of nasal valve collapse (NVC) is comparable to septal deviation and turbinate hypertrophy across all patients evaluated and in the subset of patients with severe/extreme Nasal Obstruction Symptom Evaluation (NOSE) scores.

The market research study included 1,906 patients with sinonasal complaints who were surveyed by 50 physicians in nine U.S. states. Key findings from the study include:

  • A majority of patients had severe or extreme NAO based on NOSE scores (63%).
  • The prevalence of NVC, septal deviation and inferior turbinate hypertrophy was 73%, 80% and 77%, respectively, in patients with severe or extreme NOSE scores. This market research study is the largest known prevalence assessment for anatomic contributors of NAO.
  • NVC was present in 82% of patients with severe or extreme NAO who had previously undergone septoplasty and/or inferior turbinate reduction. This suggests that missed or untreated NVC may be associated with the persistence of NAO symptoms.

Surgical correction of NVC is less common than procedures for other anatomic defects despite comparable prevalence due to the fact that traditional techniques and procedures to address NVC to completely treat NAO risks cosmetic changes with unpredictable outcomes.22,23 LATERA® absorbable nasal implant (Spirox) has the potential to provide more physicians with a minimally invasive, safe and predictable procedure that can address symptoms of NVC.

Featured publication

Clark DW, Del Signore AG, Raithatha R, Senior BA. Nasal airway obstruction: Prevalence and anatomic contributors. Ear Nose Throat J. 2018 Jun;97(6):173-176.

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