Effects of functional endoscopic sinus surgery on asthma control in patients with comorbid chronic rhinosinusitis and asthma: A national database study.

In patients with chronic rhinosinusitis and comorbid asthma, patients with surgical intervention required less asthma rescue medication, as compared to those who did not undergo surgery. Following sinus surgery, patients with chronic rhinosinusitis and asthma required more asthma medication, as compared to the time period prior to surgery.