 In this study, endoscopic sinus surgery will be performed either in the physicians office or in the operating room OR. Patients treated in the physicians office will have endoscopic sinus surgery performed with the balloon sinuplasty devices. Patients treated in the OR will have endoscopic sinus surgery performed with or without balloon sinuplasty devices. Both primary treatment of sinusitis as well as revision of previously treated sinuses will be allowed. Resource absorption will be evaluated for both venues. 