PMID- 33852653 OWN - NLM STAT- MEDLINE DCOM- 20210426 LR - 20220629 IS - 1980-5322 (Electronic) IS - 1807-5932 (Print) IS - 1807-5932 (Linking) VI - 76 DP - 2021 TI - The novel fibrosis index at diagnosis may predict all-cause mortality in patients with antineutrophil cytoplasmic antibody-associated vasculitis without substantial liver diseases. PG - e2501 LID - 10.6061/clinics/2021/e2501 [doi] LID - e2501 AB - OBJECTIVES: Antineutrophil cyto plasmic antibody-associated vasculitis (AAV) is a fatal disease. Currently, predictors of mortality due to AAV are based on the distribution of organ involvement. The novel fibrosis index (NFI) is an index composed of laboratory results that reflect the degree of liver fibrosis. This study aimed to evaluate whether NFI can predict poor outcomes in patients with AAV without substantial liver disease. METHODS: A total of 210 patients with immunosuppressive drug-naive AAV were retrospectively reviewed. NFI was calculated as follows: NFI=(serum bilirubin x (alkaline phosphatase)2)/(platelet countx(serum albumin)2). NFI cut-off was set at 1.24 (the highest quartile). Poor outcomes were defined as all-cause mortality, relapse, and end-stage renal disease (ESRD). RESULTS: During the median 34.5 months of follow-up, 21 patients (10%) died, 72 patients (34.3%) relapsed, and 38 patients (18.1%) had ESRD due to AAV progression. The median calculated NFI was 0.61, and it was higher in AAV patients with all-cause mortality than in those without mortality, but the difference was not statistically significant (1.26 vs. 0.59). AAV patients with NFI at diagnosis >/=1.24 exhibited a significantly lower cumulative patient survival rate than those with NFI at diagnosis <1.24 (p=0.002). Multivariate Cox hazard model analysis showed that NFI at diagnosis >/=1.24 was an independent predictor of all-cause mortality in AAV (hazard ratios [HR] 2.850, 95% confidence interval [CI] 1.026, 7.910). CONCLUSIONS: NFI >/=1.24, which may be an independent predictive marker for all-cause mortality in AAV patients without substantial liver disease. FAU - Pyo, Jung Yoon AU - Pyo JY AUID- ORCID: 0000-0002-1866-6885 AD - Division of Rheumatology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea. FAU - Ahn, Sung Soo AU - Ahn SS AUID- ORCID: 0000-0002-9002-9880 AD - Division of Rheumatology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea. FAU - Lee, Lucy Eunju AU - Lee LE AUID- ORCID: 0000-0002-0897-661X AD - Division of Rheumatology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea. FAU - Choi, Gwang-Mu AU - Choi GM AUID- ORCID: 0000-0001-8569-2197 AD - Department of Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea. FAU - Song, Jason Jungsik AU - Song JJ AUID- ORCID: 0000-0003-0662-7704 AD - Division of Rheumatology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea. AD - Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, Republic of Korea. FAU - Park, Yong-Beom AU - Park YB AUID- ORCID: 0000-0003-4695-8620 AD - Division of Rheumatology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea. AD - Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, Republic of Korea. FAU - Lee, Sang-Won AU - Lee SW AUID- ORCID: 0000-0002-8038-3341 AD - Division of Rheumatology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea. AD - Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, Republic of Korea. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20210409 PL - United States TA - Clinics (Sao Paulo) JT - Clinics (Sao Paulo, Brazil) JID - 101244734 RN - 0 (Antibodies, Antineutrophil Cytoplasmic) SB - IM MH - *Anti-Neutrophil Cytoplasmic Antibody-Associated Vasculitis MH - Antibodies, Antineutrophil Cytoplasmic MH - Fibrosis MH - Humans MH - *Liver Diseases MH - Retrospective Studies PMC - PMC8009064 COIS- No potential conflict of interest was reported. EDAT- 2021/04/15 06:00 MHDA- 2021/04/27 06:00 PMCR- 2021/01/01 CRDT- 2021/04/14 17:19 PHST- 2020/10/08 00:00 [received] PHST- 2021/02/11 00:00 [accepted] PHST- 2021/04/14 17:19 [entrez] PHST- 2021/04/15 06:00 [pubmed] PHST- 2021/04/27 06:00 [medline] PHST- 2021/01/01 00:00 [pmc-release] AID - S1807-5932(22)00113-2 [pii] AID - cln_76p1 [pii] AID - 10.6061/clinics/2021/e2501 [doi] PST - epublish SO - Clinics (Sao Paulo). 2021 Apr 9;76:e2501. doi: 10.6061/clinics/2021/e2501. eCollection 2021.