• Shanshan Jin, Danqiong Wang, Jian Luo, Weiwen Zhang, and Meng Wu.
• Department of Critical Care Medicine, The Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou People's Hospital, Quzhou 324000, Zhejiang Province, China. Electronic address: 1228346305@qq.com.
• Med Clin (Barc). 2022 Feb 11; 158 (3): 133-136.

IntroductionAnti-neutrophil cytoplasm antibody (ANCA)-associated vasculitis (AAV) is a rare and life-threatening autoimmune disease. Immunoadsorption (IA) is a potential approach in treating AAV.Patients And MethodsA 76-year-old male patient was admitted with hemoptysis and oliguria, progressed rapidly into pulmonary hemorrhaging, acute kidney damage, and multi-organ failure. He was diagnosed as MPO-ANCA-positive vasculitis by immunological detection and kidney biopsy in the case report. IA combined with methylprednisolone to induce and alleviate the disease effectively, and cyclophosphamide (0.2g every other day, a total of 1g for the first time, after the patients tolerated, 10mg/kg every 3 weeks for 6 months in total) combined with prednisone for maintenance therapy.Results And DiscussionAlthough both kidneys suffered severe deterioration requiring long-term hemodialysis replacement therapy, their pulmonary function was restored. Furthermore, clinical and serological symptoms of the disease were successfully controlled. Consequently, IA treatment may quickly remove IgG and ANCA to efficiently control clinical symptoms, especially in patients presenting with alveolar hemorrhaging and acute renal failure.Copyright © 2021 The Authors. Published by Elsevier España, S.L.U. All rights reserved.

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