Preoperative CT checklist (using the ‘CLOSE’ mnemonic) improves identification of anatomical variants for endoscopic sinus surgery

Computed tomography (CT) scans of the paranasal sinuses act as roadmaps for endoscopic sinus surgery (ESS) and careful inspection preoperatively warns the operating surgeon of critical anatomical variants. This study aimed to investigate if implementation of a pre-ESS CT checklist...