• Sam Kant, Adam Morris, Srekar Ravi, Lauren Floyd, Eric Gapud, Brendan Antichos, Ajay Dhaygude, Phil Seo, and Duvuru Geetha.
• Division of Nephrology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
• J. Nephrol. 2021 Feb 1; 34 (1): 185-190.

IntroductionThe coronavirus 2019 (COVID-19) pandemic has brought on challenges not only to acute care, but also chronic care of patients. Individuals maintained on immunosuppression appear to be especially susceptible to COVID-19 infection. Patients with ANCA-associated vasculitis (AAV) frequently require immunosuppression and may be at increased risk for developing COVID-19. The incidence and impact of COVID-19 on patients with AAV is currently not known. We aimed to investigate this impact via a telephone questionnaire-based patient survey and chart review.MethodsA cross-sectional study of AAV patients followed at two centers was conducted. Data regarding demographics, disease characteristics and therapy were confirmed by chart review. A telephone survey was conducted to ascertain symptoms and contact exposure related to COVID-19, as well as changes in health care delivery during the pandemic period between January and July, 2020.ResultsOf the 206 patients surveyed, the median age was 64 years, 51% were female and mean (SD) disease duration was 7 (5) years. The majority had kidney (n = 160) and lung (n = 108) involvement. Seventy-five percent (n = 155) were receiving immunosuppression, with 77 patients (50%) receiving rituximab during the pandemic period. Of the 10 patients tested for severe acute respiratory syndrome coronavirus 2 (SARS CoV-2) by PCR, three were positive. Patients had a significant disruption in care; none had an in-person visit and 69% had a telemedicine consultation. Rituximab maintenance was postponed in 21 patients. Twelve patients experienced disease relapse.ConclusionThe incidence of COVID-19 in patients with AAV appears to be similar to that of the general population. For a patient population that requires active clinical surveillance, there is significant disruption in care as a result of the pandemic. Reduction of immunosuppression may not be indicated, and the risk of relapse likely far outweighs the risk of COVID-19.

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