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KMID : 0191120230380140106
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Journal of Korean Medical Science
2023 Volume.38 No. 14 p.106 ~ p.106
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COVID-19 Vaccine-Associated Pneumonitis in the Republic of Korea: A Nationwide Multicenter Survey
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Yoo Hong-Seok
Kim Song-Yee
Park Moo-Suk
Jeong Sung-Hwan
Park Sung-Woo
Lee Hong-Lyeol
Juha Paloneva
Yang Sei-Hoon
Jegal Yang-Jin
Yoo Jung-Wan
Lee Jong-Min
Kang Hyung-Koo
Choi Sun-Mi
Park Ji-Myung
Kim Young-Whan
Song Jin-Woo
Park Joo-Hun
Choi Won-Il
Choi Hye-Sook
Park Chul
Park Jeong-Woong
Chung Man-Pyo
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Abstract
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Background : Recent reports have suggested that pneumonitis is a rare complication following vaccination against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). However, its clinical features and outcomes are not well known. The aim of this study was to identify the clinical characteristics and outcomes of patients with vaccine-associated pneumonitis following vaccination against SARS-CoV-2.
Methods : In this nationwide multicenter survey study, questionnaires were distributed to pulmonary physicians in referral hospitals. They were asked to report cases of development or exacerbation of interstitial lung disease (ILD) associated with the coronavirus disease 2019 vaccine. Vaccine-associated pneumonitis was defined as new pulmonary infiltrates documented on chest computed tomography within 4 weeks of vaccination and exclusion of other possible etiologies.
Results : From the survey, 49 cases of vaccine-associated pneumonitis were identified between February 27 and October 30, 2021. After multidisciplinary discussion, 46 cases were analyzed. The median age was 66 years and 28 (61%) were male. The median interval between vaccination and respiratory symptoms was 5 days. There were 20 (43%), 17 (37%), and nine (19%) patients with newly identified pneumonitis, exacerbation of pre-diagnosed ILD, and undetermined pre-existing ILD, respectively. The administered vaccines were BNT162b2 and ChAdOx1 nCov-19/AZD1222 each in 21 patients followed by mRNA-1273 in three, and Ad26.COV2.S in one patient. Except for five patients with mild disease, 41 (89%) patients were treated with corticosteroid. Significant improvement was observed in 26 (57%) patients including four patients who did not receive treatment. However, ILD aggravated in 9 (20%) patients despite treatment. Mortality was observed in eight (17%) patients.
Conclusion : These results suggest pneumonitis as a potentially significant safety concern for vaccines against SARS-CoV-2. Clinical awareness and patient education are necessary for early recognition and prompt management. Additional research is warranted to identify the epidemiology and characterize the pathophysiology of vaccine-associated pneumonitis.
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KEYWORD
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COVID-19, Interstitial Lung Disease, Pneumonitis, SARS-CoV-2, Vaccine
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