PMID- 34840232 OWN - NLM STAT- MEDLINE DCOM- 20220218 LR - 20220326 IS - 1349-7235 (Electronic) IS - 0918-2918 (Print) IS - 0918-2918 (Linking) VI - 61 IP - 4 DP - 2022 Feb 15 TI - MPO-ANCA-positive Microscopic Polyangiitis Following COVID-19 Infection. PG - 567-570 LID - 10.2169/internalmedicine.8615-21 [doi] AB - Antineutrophil cytoplasmic antibody-associated vasculitis (AAV) is a systemic disease that causes vasculitis in various organs. Although the cause of the onset is unknown, infection has been reported to be a causative factor. The subsequent cytokine storm triggered by the immune response against SARS-CoV-2 infection has been reported to lead to symptoms being more severe. We herein report our experience with the onset of AAV following COVID-19 infection. We also report the course of anti-SARS-CoV-2 serum antibody titers following induction therapy, which suggests that vaccination and education concerning standard precautions are necessary in patients who require immunosuppressive therapy, even after COVID-19 infection. FAU - Kawashima, Soko AU - Kawashima S AD - Department of Nephrology and Rheumatology, Kyorin University School of Medicine, Japan. FAU - Kishimoto, Mitsumasa AU - Kishimoto M AD - Department of Nephrology and Rheumatology, Kyorin University School of Medicine, Japan. FAU - Hibino, Tomoya AU - Hibino T AD - Department of Nephrology and Rheumatology, Kyorin University School of Medicine, Japan. FAU - Lee, Hearyoung AU - Lee H AD - Department of Nephrology and Rheumatology, Kyorin University School of Medicine, Japan. FAU - Sato, Yuriko AU - Sato Y AD - Department of Nephrology and Rheumatology, Kyorin University School of Medicine, Japan. FAU - Komagata, Yoshinori AU - Komagata Y AD - Department of Nephrology and Rheumatology, Kyorin University School of Medicine, Japan. FAU - Kaname, Shinya AU - Kaname S AD - Department of Nephrology and Rheumatology, Kyorin University School of Medicine, Japan. LA - eng PT - Journal Article DEP - 20211127 PL - Japan TA - Intern Med JT - Internal medicine (Tokyo, Japan) JID - 9204241 RN - 0 (Antibodies, Antineutrophil Cytoplasmic) RN - EC 1.11.1.7 (Peroxidase) SB - IM MH - *Anti-Neutrophil Cytoplasmic Antibody-Associated Vasculitis/diagnosis MH - Antibodies, Antineutrophil Cytoplasmic MH - *COVID-19 MH - Humans MH - *Microscopic Polyangiitis/complications/diagnosis MH - Peroxidase MH - SARS-CoV-2 PMC - PMC8907777 OTO - NOTNLM OT - COVID-19 OT - MPO-ANCA OT - SARS-CoV-2 OT - rapidly progressive glomerulonephritis OT - vasculitis COIS- The authors state that they have no Conflict of Interest (COI). EDAT- 2021/11/30 06:00 MHDA- 2022/02/19 06:00 PMCR- 2022/02/15 CRDT- 2021/11/29 06:18 PHST- 2021/11/30 06:00 [pubmed] PHST- 2022/02/19 06:00 [medline] PHST- 2021/11/29 06:18 [entrez] PHST- 2022/02/15 00:00 [pmc-release] AID - 10.2169/internalmedicine.8615-21 [doi] PST - ppublish SO - Intern Med. 2022 Feb 15;61(4):567-570. doi: 10.2169/internalmedicine.8615-21. Epub 2021 Nov 27.