09-10, 10:45–11:45 (Europe/Istanbul), Otology 4 (Hilton - Connie 2)
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.
Facial nerve anomalies associated with congenital middle ear malformations pose a serious risk during surgery. This presentation aims to evaluate whether three-dimensional CT reconstruction using Viewtify can facilitate the preoperative identification of aberrant facial nerve courses. By comparing 3D images of normal anatomy with two surgically confirmed anomaly cases, we demonstrate the capabilities and limitations of this technology. Our findings may contribute to safer surgical planning and help prevent iatrogenic facial nerve injury.
Seiji Kakehata, M.D., Ph.D. is best known for his work in pioneering endoscopic ear surgery in his home country of Japan and around the world. He served as Professor and Chair of the Department of Otorhinolaryngology-Head and Neck Surgery at Yamagata University Faculty of Medicine until March of 2023 after which he became Professor Emeritus. In May of 2023, he opened the Endoscopic Ear Surgery Center in the Ota General Hospital in Kawasaki Japan to make TEES more accessible to the wider public. He is also the immediate past Chair of Board of Directors, Japan Otological Society. He is a director of the Japanese Society of Otorhinolaryngology-Head and Neck Surgery. In addition, he is a founding board member of the International Working Group on Endoscopic Ear Surgery (IWGEES) and its immediate past president as well as the president of the Pan-Asia Working Group on Endoscopic Ear Surgery (PAWGEES).
Dr. Kakehata’s clinical interests include minimally invasive endoscopic ear surgery, conductive and sensorineural hearing loss, and facial nerve palsy. Dr. Kakehata’s research has focused on cochlear hair cell physiology and hearing regeneration. His funded research includes the study of outer hair cell motility, effects of cholesterol alterations on outer hair cells, regeneration of the facial nerve, and regeneration of auditory nerve fiber growth and synapse formation after ear injury.
Dr. Kakehata hosted the 4th World Congress on Endoscopic Ear Surgery in 2022 and is the president-elect of the 36th Politzer Society Meeting to be held in 2028 in Kyoto. He organized and conducted the first endoscopic ear surgery courses in Asia and has continued to host an annual hands-on course since 2012. He has delivered numerous presentations at regional and national meetings in Japan, as well as at international conferences and courses, particularly in the field of endoscopic ear surgery.
- Endoscopic Stapedectomy, Evidence Based Outcomes
- Innovation: Next-Generation Techniques In Innovative Endoscopic Ear Surgery~Efficacy Of Image-Guided Percutaneous Endoscopic Ear Surgery
- Sudden Hearing Loss
- Mastering The Skills Of Transcanal Endoscopic Ear Surgery (TEES): Strategies For Skill Development And Assessment
- Tips And Techniques In Transcanal Endoscopic Ear Surgery (TEES)
- Endoscopic Stapes Surgery: Pearls And Pitfalls
2019~ Professor in Department of ORL Osaka Metropolitan (City) University Graduate school of medicine
2018-2019 Associate Professor in Department of ORL Osaka City University Graduate school of medicine
2016-2014 Assistant Professor in Osaka City University Graduate school of medicine
Education:
1984-1990 M.D., Osaka University Medical School, Suita
1992-1996 Ph.D., Department of Otolaryngology, Osaka University Medical School, Suita
Professional Experiences:
2009-2012, Associate Professor, Department of Otolaryngology, Osaka University Graduate School of Medicine, Suita
2012-present, Director, Department of Otorhinolaryngology - Head and Neck Surgery, Osaka Rosai Hospital, Sakai
2021-present, Vice-President, Osaka Rosai Hospital, Sakai
Research experience:
1996-1998, Fellow of the German Academic Exchange Service (Deutscher Akademischer Austauschdienst: DAAD), Department of Physiology, Freie Universität Berlin, Germany
Professional Societies:
Oto-Rhino-Laryngological Society of Japan, Otological Society of Japan, Japan Rhinologic Society, Japan Society for Equilibrium Research, Barany Society (Uppsala, Sweden)
Major Interest:
Otologic surgery, Sinus surgery
Tsukasa Ito, MD, PhD, is Professor and Chair of the Department of Otolaryngology, Head and Neck Surgery at Yamagata University Faculty of Medicine, Japan, and Vice Director of Yamagata University Hospital. He received his MD and PhD degrees from Yamagata University and conducted research at University Hospital Zurich, Switzerland, from 2007 to 2008.
His clinical and research interests include temporal bone surgery, endoscopic ear surgery, cholesteatoma, congenital middle ear anomalies, and clinical research in otology and audiology. He has also conducted basic research on the middle and inner ear, including middle ear mucosal regeneration, cochlear injury and regeneration, and facial nerve regeneration. He is actively involved in multicenter clinical studies on ear surgery in Japan.
Dr. Ito is a member of the International Otology Outcome Group (IOOG), the International Working Group on Endoscopic Ear Surgery (IWGEES), and Secretary General and board member of the Japan Working Group on Endoscopic Ear Surgery (JWGEES). His work has particularly focused on clinical development, safety, and education of transcanal endoscopic ear surgery.
2012- Akiru municipal medical center, Resident
2014- Department of Otolaryngology - Head and Neck Surgery, University of
Occupational and Environmental Health, Japan, Fellow
2020- Fukuoka public health promotion organization, clinical staff
2022- Department of Otolaryngology - Head and Neck Surgery, University of
Occupational and Environmental Health, Japan, Assistant Professor
Saki Takihata, MD, is an otolaryngologist at the Department of Otolaryngology–Head and Neck Surgery, National Defense Medical College, Japan. Her clinical and research interests focus on otologic surgery, particularly transcanal endoscopic ear surgery (TEES) . She has published peer-reviewed articles on surgical anatomy and complications in middle ear surgery, including chorda tympani nerve injury. Dr. Takihata is actively involved in both clinical practice and academic research.
Specialized in otology, with a particular focus on otologic surgery, hearing aids and auditory implants, as well as clinical genetics related to hearing loss.