急性硼酸中毒是一种罕见的临床急症。本文报道一例抗中性粒细胞胞质抗体(anti-neutrophil cytoplasmic antibodies，ANCA)相关血管炎患者的急性硼酸中毒的成功治疗经验。患者住院期间误服致命剂量的硼酸，临床表现为恶心、呕吐、头晕，经过血液透析治疗后，患者症状消失，无严重并发症，血肌酐下降，脱离透析。目前还没有针对硼酸中毒的特效解毒剂，血液透析是一种有效的治疗方法。血液透析治疗急性硼酸中毒的病例较少，本病例为在紧急情况下治疗急性硼酸中毒提供了有价值的参考。

Acute boric acid poisoning is a rare clinical emergency. We report the successful treatment of acute boric acid poisoning in a patient with anti-neutrophil cytoplasmic antibodies (ANCA)-associated vasculitis. The patient accidentally ingested a lethal dose of boric acid during hospitalization, presenting with clinical symptoms including nausea, vomiting and dizziness. After hemodialysis treatment, the patient’s symptoms completely resolved without severe complications, and the vasculitis achieved a favorable response. Currently, there is no specific antidote for boric acid poisoning, and hemodialysis serves as an effective treatment modality. Clinical cases of hemodialysis for acute boric acid poisoning are relatively scarce. This case provides valuable reference for the management of acute boric acid poisoning in emergency settings.