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2020 ; 8
(7
): 681-686
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Pulmonary and cardiac pathology in African American patients with COVID-19: an
autopsy series from New Orleans
#MMPMID32473124
Fox SE
; Akmatbekov A
; Harbert JL
; Li G
; Quincy Brown J
; Vander Heide RS
Lancet Respir Med
2020[Jul]; 8
(7
): 681-686
PMID32473124
show ga
BACKGROUND: Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) spread
rapidly across the USA, causing extensive morbidity and mortality, particularly
in the African American community. Autopsy can considerably contribute to our
understanding of many disease processes and could provide crucial information to
guide management of patients with coronavirus disease 2019 (COVID-19). We report
on the relevant cardiopulmonary findings in, to our knowledge, the first autopsy
series of ten African American decedents, with the cause of death attributed to
COVID-19. METHODS: Autopsies were performed on ten African American decedents
aged 44-78 years with cause of death attributed to COVID-19, reflective of the
dominant demographic of deaths following COVID-19 diagnosis in New Orleans.
Autopsies were done with consent of the decedents' next of kin. Pulmonary and
cardiac features were examined, with relevant immunostains to characterise the
inflammatory response, and RNA labelling and electron microscopy on
representative sections. FINDINGS: Important findings include the presence of
thrombosis and microangiopathy in the small vessels and capillaries of the lungs,
with associated haemorrhage, that significantly contributed to death. Features of
diffuse alveolar damage, including hyaline membranes, were present, even in
patients who had not been ventilated. Cardiac findings included individual cell
necrosis without lymphocytic myocarditis. There was no evidence of secondary
pulmonary infection by microorganisms. INTERPRETATION: We identify key
pathological states, including thrombotic and microangiopathic pathology in the
lungs, that contributed to death in patients with severe COVID-19 and
decompensation in this demographic. Management of these patients should include
treatment to target these pathological mechanisms. FUNDING: None.