key: cord-1052718-dm6dju87
authors: Hsu, Tiffany Y-T; D'Silva, Kristin M; Patel, Naomi J; Fu, Xiaoqing; Wallace, Zachary S; Sparks, Jeffrey A
title: Incident systemic rheumatic disease following COVID-19
date: 2021-04-06
journal: Lancet Rheumatol
DOI: 10.1016/s2665-9913(21)00106-5
sha: e4b7d957511845a3a1385070e373845f8acff836
doc_id: 1052718
cord_uid: dm6dju87

nan

Although viruses can induce rheumatic diseases, the impact of SARS-CoV-2, the virus behind COVID-19, on the development of systemic rheumatic disease is unclear. COVID-19 can cause a hyperinflammatory state, 1 and multiple studies report the development of autoantibodies in patients with COVID-19. 2, 3 However, progression into clinical autoimmunity in adults has only been described in case reports.

We electronically queried patients with a positive PCR result for SARS-CoV-2 at Mass General Brigham hospital in Boston, MA, USA, between Jan 30 and Nov 10, 2020 (n=15 284). For a contemporaneous comparison group, we matched each of these patients with an individual with a negative PCR test result for SARS-CoV-2 (±5 days), by age (±5 years) and sex. Of the patients who tested positive for SARS-CoV-2, we excluded 300 known to have prevalent rheumatic disease that we identified in our previous studies. 3 Three patients developed systemic rheumatic disease within one week of SARS-CoV-2 PCR positivity. All three patients were admitted to hospital primarily for symptoms related to the incident systemic rheumatic disease. One of these patients developed inflammatory arthritis 10 days after the onset of COVID-19 symptoms but also had known hepatitis C infection (with a stable viral load). Another patient was diagnosed with giant cell arteritis, presenting with scalp tenderness, temporal headache, elevated inflammatory markers, and complete unilateral vision loss. Unilateral temporal artery biopsy showed no obvious arteritis, but there was intimal hyperplasia and disruption of the internal elastic lamina. Magnetic resonance angiography of the neck and brain showed multiple vertebrobasilar arterial stenoses consistent with vasculitis. Therefore, this patient was diagnosed with giant cell arteritis and treated with pulse-dose intravenous glucocorticoids. He was discharged on high-dose prednisone and died from cardiac arrest 10 days after initial PCR positivity. The third patient presented with severe proximal muscle weakness, diagnosed as inflammatory myopathy due to elevated serum muscle enzymes. Deltoid muscle biopsy revealed type I interferonopathy, shown by abnormal MHC-1 and myxovirus resistance protein 1 expression, as reported previously. 5 He was treated with pulsedose intravenous glucocorticoids and intravenous immunoglobulin. His disease is most consistent with dermatomyositis characterised by anti-Mi2 and anti-TIF1g autoantibodies. At the time of writing, he remained on glucocorticoids and monthly intravenous immunoglobulin due to persistent muscle weakness.

The remaining three patients developed systemic rheumatic disease more than two months after PCR positivity. One patient with a history of pulmonary embolism and deep vein thrombosis (DVT) two months before COVID-19 symptom onset, in the setting of prolonged immobility due to air travel (with negative antiphospholipid antibodies and normal partial thromboplastin time at that time), was diagnosed with antiphospholipid syndrome 74 days after COVID-19 symptom onset (ie, fever, chills, and rhinorrhea). The patient developed an unprovoked DVT while on rivaroxaban for five months and had a newly positive lupus anticoagulant test, which persisted on repeat testing at three months; at the time of writing, she was being treated with warfarin. Another patient with hand arthralgias without synovitis on previous rheumatology evaluation developed seronegative inflammatory arthritis 89 days after PCR positivity. COVID-19 symptoms included fever, chills, and cough. The patient developed bilateral hand and wrist swelling and laboratory tests were negative for rheumatoid factor and anti-citrullinated protein antibodies. She was initially See Online for appendix

Published Online April 6, 2021 https://doi.org/10.1016/ S2665-9913(21)00106-5 rheumatica. It is possible that some patients with non-specific early polymyalgia rheumatica symptoms were tested for SARS-CoV-2, therefore biasing our results towards the null. The differing distributions of age, sex, and type of incident polymyalgia rheumatica in the PCR-positive group and PCR-negative group are unlikely to be explained by an imbalance of demographic factors at baseline since age and sex were matching factors. Despite these limitations, ours is the first study to our knowledge to systematically identify incident systemic rheumatic diseases within a large health-care system that included a comparator group. Further research is needed to delineate potential links between COVID-19 and autoimmunity. clinical disease. Similarly, the COVID-19 hypercoagulable state might have increased the propensity of thrombosis in the patient with antiphospholipid syndrome. These data contribute to the evidence on the possible relationship between SARS-CoV-2 and autoimmunity, although the similar rate of incident systemic rheumatic disease among the comparators suggests that these cases of incident systemic rheumatic diseases could have been due to chance. It is also possible that individuals might have been tested for SARS-CoV-2 due to symptoms of an undiagnosed systemic rheumatic disease. We did our study at a large health-care system using a sensitive screen to maximise the ability to systematically detect all incident cases of systemic rheumatic disease after PCR testing, and we confirmed their presence and timing by medical record review. However, it is possible that some individuals might have been diagnosed with systemic rheumatic diseases outside of our health-care system and would not have generated the relevant diagnosis codes to be identified in our study. It is also possible that some patients developed incident systemic rheumatic disease but did not seek or could not access care during the pandemic, and our study would not have identified these patients. Therefore, we used a contemporary comparator group that was also navigating these health-care access difficulties. Among the matched comparators, we identified five cases of incident systemic rheumatic disease after negative PCR results for SARS-CoV-2. This number provides an estimate of the background rate of systemic rheumatic disease development in a contemporaneous population who also presented for testing for SARS-CoV-2. Interestingly, four of the five patients were diagnosed with polymyalgia rheumatica between 30 and 129 days after SARS-CoV-2 testing. The remaining patient developed seronegative rheumatoid arthritis 100 days after SARS-CoV-2 testing.

This case series and comparative study of patients with PCR-confirmed COVID-19 and incident systemic rheumatic disease shows that some patients developed systemic rheumatic diseases following COVID-19. Although COVID-19 could trigger de novo rheumatic disease by inducing type I interferonopathy, it might also accelerate the progression of preexisting subclinical autoimmunity into

Covid-19-associated myopathy caused by type I interferonopathy

Coronavirus disease 2019 outcomes among patients with rheumatic diseases 6 months into the pandemic

High prevalence of antinuclear antibodies and lupus anticoagulant in patients hospitalized for SARS-CoV2 pneumonia

SARS-CoV-2, the autoimmune virus