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SARS-CoV-2 is localized in cardiomyocytes: a postmortem biopsy case.

ABSTRACT: A 72-year-old patient was admitted to the intensive care unit due to acute respiratory distress syndrome caused by COVID-19. On day 20, the patient experienced shock. The electrocardiogram showed ST segment elevation in leads V3-V6 and severe left ventricular dysfunction with an ejection fraction of 35%-40%. The left ventricle showed basal hypokinesis and apical akinesis, while the creatine kinase level was normal, indicating Takotsubo cardiomyopathy. On day 24, the patient died of multiple organ failure. In post-mortem biopsy, SARS-CoV-2 antigen was detected in cardiomyocytes by immunostaining. Moreover, SARS-CoV-2 RNA was detected in heart tissue. We need to further analyse the direct link between SARS-CoV-2 and cardiomyocytes.

SUBMITTER: Nakamura Y

PROVIDER: S-EPMC8351278 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature

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SARS-CoV-2 is localized in cardiomyocytes: a postmortem biopsy case.

Nakamura Yoshihiko Y Katano Harutaka H Nakajima Noriko N Sato Yuko Y Suzuki Tadaki T Sekizuka Tsuyoshi T Kuroda Makoto M Izutani Yoshito Y Morimoto Shinichi S Maruyama Junichi J Koie Megumi M Kitamura Taisuke T Ishikura Hiroyasu H

International journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases 20210809

A 72-year-old patient was admitted to the intensive care unit due to acute respiratory distress syndrome caused by COVID-19. On day 20, the patient experienced shock. The electrocardiogram showed ST segment elevation in leads V3-V6 and severe left ventricular dysfunction with an ejection fraction of 35%-40%. The left ventricle showed basal hypokinesis and apical akinesis, while the creatine kinase level was normal, indicating Takotsubo cardiomyopathy. On day 24, the patient died of multiple orga ...[more]

PMID: 34384897

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Project description:Background and objectivesAKI in coronavirus disease 2019 (COVID-19) is associated with higher morbidity and mortality. The objective of this study was to identify the kidney histopathologic characteristics of deceased patients with diagnosis of COVID-19 and evaluate the association between biopsy findings and clinical variables, including AKI severity.Design, setting, participants, & measurementsOur multicenter, observational study of deceased patients with COVID-19 in three third-level centers in Mexico City evaluated postmortem kidney biopsy by light and electron microscopy analysis in all cases. Descriptive and association statistics were performed between the clinical and histologic variables.ResultsA total of 85 patients were included. Median age was 57 (49-66) years, 69% were men, body mass index was 29 (26-35) kg/m2, 51% had history of diabetes, 46% had history of hypertension, 98% received anticoagulation, 66% were on steroids, and 35% received at least one potential nephrotoxic medication. Severe AKI was present in 54% of patients. Biopsy findings included FSGS in 29%, diabetic nephropathy in 27%, and arteriosclerosis in 81%. Acute tubular injury grades 2-3 were observed in 49%. Histopathologic characteristics were not associated with severe AKI; however, pigment casts on the biopsy were associated with significantly lower probability of kidney function recovery (odds ratio, 0.07; 95% confidence interval, 0.01 to 0.77). The use of aminoglycosides/colistin, levels of C-reactive protein and serum albumin, previous use of angiotensin-converting enzyme inhibitors or angiotensin II receptor blockers, antivirals, nonsteroid anti-inflammatory drugs, and anticoagulants were associated with specific histopathologic findings.ConclusionsA high prevalence of chronic comorbidities was found on kidney biopsies. Nonrecovery from severe AKI was associated with the presence of pigmented casts. Inflammatory markers and medications were associated with specific histopathologic findings in patients dying from COVID-19.

Dataset Information

SARS-CoV-2 is localized in cardiomyocytes: a postmortem biopsy case.

Publications

SARS-CoV-2 is localized in cardiomyocytes: a postmortem biopsy case.

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