Through a prospective, multicenter evaluation, safety was assessed by rate of adverse events, patency was determined by endoscopic examination, and sinus symptoms were determined by the Sino-Nasal Outcome Test (SNOT 20).
At the conclusion of the 24-week analysis, endoscopy determined that the sinusotomy was patent in 80.5 % (247 of 307) sinuses and nonpatent in 1.6 % (5 of 307), and could not determine ostial patency status in 17.9 % (55 of 307). Of the ostia visualized on endoscopy, 98 % were patent (247 of 252), while 2 % (5 of 252) were considered nonpatent. SNOT 20 scores showed consistent symptomatic improvement over baseline. Revision treatment was required in 3 sinuses (3 of 307 sinuses, 0.98 % ) in 3 patients (3 of 109 patients, 2.75 % ).
Balloon catheter technology appears safe and effective in relieving ostial obstruction. Patients were pleased and indicated that they experienced symptomatic improvement.