목적: Advancements in surgical techniques and instruments, including lasers, endoscopes, ultrasonic devices, and robotics, have transformed the landscape of supraglottic laryngectomy from open to transoral endoscopic approaches. Transoral laser-assisted microsurgery (TLM) has emerged as an efficient treatment modality, providing rapid functional recovery and serving as a viable alternative to partial laryngectomy or non-surgical therapies. Traditional endoscopic supraglottic laryngectomy typically involves resection of both suprahyoid and infrahyoid supraglottic structures. However, in cases where the tumor is confined to the infrahyoid epiglottis, a pioneering technique referred to as transoral laser-assisted infrahyoid supraglottic laryngectomy allows for tumor removal while preserving critical structures such as the suprahyoid epiglottis, aryepiglottic folds, and vallecula. 방법:Transoral laser-assisted infrahyoid supraglottic laryngectomy follows a similar procedure to transoral laser microsurgery for supraglottic cancer, with specific modifications to preserve certain structures. Subsequent clinic visits are scheduled to monitor laryngopharyngeal function, quality of life, and tumor recurrence. 결과:Transoral laser-assisted infrahyoid supraglottic laryngectomy was successfully performed on 8 patients, achieving R0 resection without microscopic residual tumors. Three patients with multiple lymph node metastases received postoperative chemoradiotherapy. This approach optimally maintains laryngopharyngeal function, enabling a swift return to daily activities with minimal complications and no recurrence. 결론:This presentation delves into the surgical technique, potential indications, and the advantages and disadvantages of this innovative approach for infrahyoid epiglottic cancer.