Treatment of Post-Operative Sinonasal Polyposis With Topical Furosemide

The study was terminated prematurely due to low enrollment numbers and the development of better drugs to treat polyps (ie. Biologics) which were not available when the study began.

Prior studies have suggested that topical furosemide may reduce the recurrence of sinonasal polyposis following sinus surgery. This project aims to further investigate that claim through a blinded randomized controlled clinical trial following patients who undergo functional sinus surgery for chronic rhinosinusitis with sinonasal polyposis by randomly assigning participants to receive topical furosemide versus placebo nasal spray for 2 months post operatively. Outcomes would be compared at 6 months through endoscopic grading scores using Lund Kennedy and Meltzer scores as well as Sino-Nasal Outcome Test (SNOT-22) scores to measure the rate and degree of recurrence and impact on symptoms in the treatment group versus placebo.

Nasal and paranasal polyposis based on endoscopic grading through Lund Kennedy score to measure the rate and degree of recurrence.

Nasal and paranasal polyposis based on endoscopic grading through Meltzer score to measure the rate and degree of recurrence.

Nasal and paranasal polyposis based Sino-Nasal Outcome Test (SNOT-22) scores to measure impact on symptoms.

Inclusion Criteria: Patients with chronic rhinosinusitis and sinonasal polyposis who are candidates for functional endoscopic sinus surgery Exclusion Criteria: Hypersensitivity to furosemide or sulfonamides pregnancy history of tinnitus history of sensorineural hearing loss poorly controlled diabetes current diuretic therapy known electrolyte disorder currently taking aminoglycosides BUN and creatinine levels out of the normal range history of renal disease allergy to sulfonamides