目的 报道托珠单抗在2例儿童热性感染相关性癫痫综合征（FIRES）患者中的应用，为治疗该病提供参考。方法 回顾性分析我院儿童重症监护室于2023年收治的2例FIRES患儿的临床表现、诊疗过程及其对托珠单抗的治疗反应，并结合相关文献进行复习和讨论。结果 2例患儿对多种抗癫痫发作药物、麻醉剂、生酮饮食治疗及一线免疫治疗（大剂量甲基泼尼松龙、大剂量免疫球蛋白）无反应，使用托珠单抗进行二线免疫治疗后，癫痫发作得以控制，无不良反应。随访4~6个月，1例患儿再次癫痫发作。结论 托珠单抗作为二线免疫治疗药物对FIRES有效，耐受性好，是一种具备潜力的治疗手段之一。

Objective To report the use of tocilizumab in 2 cases of children with febrile infection-ralated epilepsy syndrome (FIRES), and provide a reference for its therapeutic application. Methods A retrospective analysis was conducted on the clinical manifestations, diagnostic and treatment processes, and therapeutic responses to tocilizumab in two FIRES patients admitted to the pediatric intensive care unit of our hospital in 2023, and the relevant literatures were reviewed. Results Neither patient responded to multiple antiepileptic drugs, anesthetics, ketogenic diet therapy, or first-line immunotherapy (high-dose methylprednisolone and high-dose intravenous immunoglobulin). Following second-line immunotherapy with tocilizumab, epileptic seizures were effectively controlled without adverse reactions. After 4-6 months of follow-up, one patient experienced recurrence of epileptic seizures. Conclusions Tocilizumab demonstrates efficacy as a second-line immunotherapy for FIRES, with good tolerability, and represents a promising treatment option.