This is a postmarket, multicenter, prospective, randomized clinical trial conducted at up to 15 US clinical sites comparing the efficacy of balloon sinus dilation with traditional endoscopic sinus surgery. The primary hypotheses were to demonstrate that: 1) long-term change in sinus symptoms after balloon dilation is not worse (non-inferior) than after FESS, and 2) balloon dilation is superior to FESS for a reduction in the number of postoperative debridements per patient. A minimum of 36 participants per arm is required to test the primary hypotheses. All participants will be followed through a minimum of 12 months post treatment.
The objective of this study is to show that long-term symptom improvement after sinus balloon dilation is not worse than symptom improvement after functional endoscopic sinus surgery (FESS) and that fewer postoperative debridements are required after balloon dilation than after FESS.