Coblation-Assisted Endoscopic Endonasal Approach for Restenosis in Unilateral Choanal Atresia: A Case Report.

Choanal atresia (CA) is a rare congenital disease caused by the developmental failure of the posterior nasal cavity to communicate with the nasopharynx. The unilateral type, affecting mainly the right nasal cavity, can remain undiagnosed for years. To date, no gold standard surgical approach has been established, and the risk of requiring revision surgery remains considerable. We present the case of a 33-year-old male patient who complained of chronic right-sided nasal blockage and discharge, which initiated a few years after pediatric surgery for ipsilateral CA. Rigid nasal endoscopy revealed his symptoms were caused by restenosis. The patient underwent successful transnasal endoscopic coblation-assisted surgical treatment without using stents. There were no postoperative complications reported, and one year into follow-up, no restenosis is evident. This case demonstrates the safety and efficacy of the coblation-assisted endonasal approach.