Usefulness of Intraoperative Narrow‐Band Imaging in the Site Diagnosis of Respiratory Papillomatosis

Objective Narrow‐band imaging (NBI) is considered useful for detecting respiratory papillomatosis. However, the choice between preoperative and intraoperative NBI depends on the facility. We investigated the usefulness of NBI and determined whether preoperative NBI can replace intraoperative NBI with a comparable detection rate. Methods In this retrospective cohort study conducted at single a tertiary care center, patients with respiratory papillomatosis treated between 2017 and 2022 were enrolled. We systematically compared preoperative white light imaging (WLI) with preoperative and intraoperative NBI. The primary endpoints were the papilloma detection rate and lesion site assessed by the Derkay scoring system. The secondary endpoints were the risk factors for increased Derkay scores. Results The study included 127 patients with papilloma. Intraoperative NBI yielded significantly higher Derkay scores than preoperative WLI (p