Sugi S, Tominaga M, Kaieda S, Fujimoto K, Chikasue T, Koga T, Hasuo Y, Iwanaga E, Murotani K, Lim JKT, Ida H, Kawayama T, Hoshino T. Examination of prognostic factors in anti-melanoma differentiation-associated gene 5 antibody-positive dermatomyositis.
Mod Rheumatol 2024;
34:966-972. [PMID:
38300517 DOI:
10.1093/mr/roae007]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 12/15/2023] [Accepted: 01/19/2024] [Indexed: 02/02/2024]
Abstract
OBJECTIVE
This study investigated the prognostic factors of anti-melanoma differentiation-associated gene 5 antibody-positive dermatomyositis (MDA5-DM).
METHODS
This study analysed 34 MDA5-DM cases (20 and 14 in the survival and death groups, respectively) encountered at Kurume University between 2008 and 2021. The clinical, physiological, and computed tomography findings, pulmonary function, and serological results were retrospectively evaluated for each MDA5-DM case during the first visit and throughout the next 12 weeks.
RESULTS
In the death group, the mean age of patients was higher (47.6 vs. 61.8 years), while the duration from symptom onset to consultation was shorter (110 vs. 34.9 days). During the first visit, the death group demonstrated a significantly higher serum C-reactive protein level (0.52 vs. 1.99) and a significantly lower albumin level (3.23 vs. 2.63) than the survival group; this persisted throughout the next 12 weeks. Poor prognosis was associated with C-reactive protein and albumin levels >0.19 mg/dl and <2.3 g/dl, respectively, 4 weeks after starting the treatment.
CONCLUSION
Four weeks after starting the treatment, serum C-reactive protein and albumin levels of patients with MDA5-DM can be used to evaluate treatment response and predict prognosis.
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