Gasless endoscopic thyroidectomy via an anterior chest wall approach using a flap-lifting system.

Purpose: Endoscopic thyroidectomy (ET) requires a proper working space for adequate visualization of anatomical structures and proper instrument manipulation. The purpose of this prospective study was to estimate the feasibility and safety of ET using an anterior chest wall approach without gas insufflation.

Materials And Methods: The working space was created under a direct and endoscopic view through a 3-cm incision on the anterior chest wall.