Abstract
Endoscopic-laryngeal pharyngeal surgery （ELPS） is a very effective treatment for early cancers, especially because operation time can be reduced, as well as because unnecessary chemoradiotherapy can be avoided. On the other hand, it was not until ELPS became widespread that early cancer could be eradicated with chemoradiotherapy. With progressive improvements in accurate endoscopic imaging, it has been become possible to detect early recurrence in patients who had previously been treated with chemoradiotherapy. However, when such patients are operated by ELPS, we sometimes encounter difficulties, including difficult device manipulation, unexpected advance of tumors, and obscure tumor margins. We present an analysis of our ELPS cases and identify the problems of ELPS performed after radical chemoradiotherapy.
