Abstract
Introduction: COVID-19 pandemic, an international emergency, raised concerns about the interaction of this infection and disease-modifying drugs used in the treatment of Systemic inflammatory diseases (SID). Understanding the relationship between COVID-19 and disease activity is crucial to adapt the treatment.
Aim: The aim of our study was to determine the impact of COVID-19 on the disease activity of rheumatic diseases.
Patients and Methods: We performed a cross-sectional study, including patients with SID (rheumatoid arthritis (RA) and spondyloarthritis (SpA)). Disease activity was evaluated during the last check-up before COVID-19 and within the period of 6 months after the infection. Activity scores were assessed with Disease Activity Score (DAS28) for RA and Ankylosing Spondylitis Disease Activity Score (ASDAS) for SpA. Correlation and regression coefficients were used to evaluate associations among the variables.
Results and Discussion: Totally, thirty-two patients were included; twenty followed for RA and twelve for axial SpA. The mean disease duration of the underlying rheumatic disease was 10.2 years (2-30). RA was seropositive and erosive in 61% and 31%, respectively. Seventeen patients were on csDMARDs: 14 were on Methotrexate and three patients were on Salazopyrine. Ten patients (31%) were treated with bDMARDs; Tumor necrosis factor (TNF)-alpha inhibitors were used in eight cases. Rituximab and secukinumab were prescribed for one patient each. In 70%, COVID-19 was pauci-symptomatic. A severe form with a need for hospitalization was noted in 9%. Two patients were admitted to the intensive care unit (ICU).
Overall, treatment with DMARDs was interrupted in all cases: when COVID-19 symptoms began in 82% and when PCR was positive in 18%. Both RA and axial SpA were not active after a mean period of 6 months after COVID-19 infection (p = 0.818 and p = 0.626, respectively).
Conclusion: Although our patients interrupted their DMARDs, our study demonstrates that disease activity as assessed by ASDAS and DAS28 in SpA and RA remained unchanged after COVID-19.
Keywords: COVID-19, systemic inflammatory diseases, disease activity, rheumatic diseases, ankylosing spondylitis disease, methotrexate.
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