This study examined the adverse events associated with advanced laryngeal cancer treatment in International Medical Center Saitama Medical University and described the countermeasures taken. During chemoradiotherapy, special attention should be paid to patients to prevent the need for discontinuation of CDDP due to renal dysfunction. Regarding surgical cases, cases of minor leak were relieved by conservative treatment, but leak cases despite small fistula in the super-elderly were long delayed in wound healing. Although no significant difference was observed in the suture shape of the pharyngeal mucosa itself, it is considered essential to optimize the wound healing mechanism by ensuring a sufficient blood supply.
