an answer to your question most likely will be found here...
http://www.biospace.com/news_story.aspx?StoryID=21254520
Feasibility and procedural success was demonstrated through 100% dilation of the target sinuses.
The Balloon Sinuplasty Procedure
After placing a small guiding catheter into the nose under endoscopic vision, a small guidewire is introduced into the sinus targeted for therapy. Once the sinus is accessed, a proprietary balloon device developed by Acclarent, Inc. (Menlo Park, CA) called the Relieva(TM) Sinus Balloon Catheter is introduced into the swollen sinus passageway under x-ray guidance. The Relieva Sinus Balloon catheter is then dilated, gently restructuring and widening the walls of the passageway, maintaining the integrity of the sinus lining and allowing for immediate drainage of trapped secretions.
"This technology is indeed an eye opener and should make sinus surgery more complete," said Dr. Michael Setzen from Manhasset, NY, "The Balloon Sinuplasty procedure is extremely exciting and will be beneficial to both sinus surgeons and patients."
How much does it cost to have a specialist stick a ballon in your nose and inflate it?