CST conducted by japan working group on endoscopic ear surgery

Transcanal endoscopic ear surgery (TEES) provides excellent visualization of the middle ear and has become increasingly adopted in otologic surgery. However, its technical characteristics, including one-handed manipulation and limited control of bleeding, may present challenges during delicate procedures such as cholesteatoma surgery and chorda tympani nerve (CTN) preservation. This proposal discusses the advantages and limitations of TEES compared with microscopic ear surgery (MES), with particular emphasis on surgical education and CTN preservation. We aim to provide practical strategies for teaching TEES and optimizing surgical safety while maximizing the benefits of endoscopic visualization.