Chronic sinusitis questionnaire validation study

This study is a registry that tracks how well treatments work for people with chronic rhinosinusitis with nasal polyps. By joining, you help doctors learn which therapies lead to better control and possibly remission of symptoms over time.

This study tests a special nose dressing that slowly releases a steroid to reduce inflammation and improve healing after sinus surgery for chronic sinusitis with or without nasal polyps.

This study tests a specialized way of measuring how your nasal lining responds in people with chronic rhinosinusitis (long-lasting sinus inflammation). The goal is to see whether the nasal measurement is usable and safe, and to help better understand chronic sinus disease.

This study looks at how well patients recover and their quality of life after surgery for nasal polyps caused by chronic sinusitis. It is for people in China who have just had surgery to remove nasal polyps.

This study examines the type of inflammation in nasal polyps by collecting small tissue samples during surgery. It may help doctors better understand why some people develop nasal polyps and how to treat them more effectively.

This study is looking at healthy people to understand how certain cells in the nose work. It will compare them to people with sinus problems to learn what goes wrong in chronic sinusitis with nasal polyps.