Abstract
Abstract Background/Aims In the recent past, there has been growing research interest in COVID-19 vaccines and their impact on the disease dynamics of rheumatic and musculoskeletal diseases (RMDs). The intersection of COVID-19 and autoimmunity has led to the theoretical possibility of flare-ups of autoimmune diseases with COVID vaccines. This study was conducted to evaluate the occurrence and the nature of flare-ups following the COVID vaccination on patients with RMDs. Methods This cross-sectional analytical study was conducted at Ragama Rheumatology and Rehabilitation Hospital, Sri Lanka involving 248 clinic patients using a structured questionnaire. Results The mean age of the study population was 52.69 and 75.4% were females. 12 patients (4.7%) reported flare symptoms following 1st dose of vaccination. Of them, 67% were females and 41.7% were within the 40-45 years age group. 75% of patients have experienced the onset of the flare symptoms following 1 week of the vaccination and 41.7% of symptoms have lasted more than 8 weeks. 66.7% who had this flare have received Sinopharm, while 25% received Covishield. In this flare 58.3% got polyarthritis,16.7% monoarthritis, 8.3% oligoarthritis and 16.7% generalized rash. By contrast, 42 (16.9%) patients who received the 2nd dose of the vaccine had flare symptoms. 90.5% of this population were females and 38.1% were within the 50-59 years age group. 42% got flare following 1st week of the vaccination and 57% of symptoms have lasted more than 8 weeks. 5 patients who had flare symptoms following the first dose reported having flare after the 2nd dose too. None of the flare symptoms following 1st or 2nd dose of the vaccinations needed hospitalization. Interestingly gender (p = 0.012), use of methotrexate (p = 0.043), and the presence of flare to the first dose (p = 0.02) were found to be significantly correlated with the occurrence of flare symptoms following 2nd dose of vaccination. Conclusion This study reveals a considerable incidence of non-severe RMD flare-ups following COVID vaccination, mainly with the 2nd dose. Further studying on the effects of repeated and periodic COVID vaccination among patients with RMDs is timely to reassure and to improve vaccine acceptance in this group of patients. Disclosure S.K. Ubhayasiri: None. D. Abeysinghe: None.
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