Chronic rhinosinusitis (CRS) is defined as signs and symptoms of inflammation of the sinuses persisting more than 8 to 12 weeks.¹ In most pediatric patients, acute and chronic rhinosinusitis resolves with adequate medical therapy. Surgery may be considered in patients with failed medical treatment. Traditional sinus surgery for pediatric rhinosinusitis, including the nasal antral window, Caldwell-Luc procedure, ethmoidectomy, and adenoidectomy, often has unsatisfactory outcomes and high morbidity.