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Related Experiment Video

Updated: May 26, 2025

Measuring Local Anaphylaxis in Mice
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Deaths from Angioedema-Anaphylaxis and Covid-19.

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    Summary

    This report details two deaths from angioedema, a swelling condition, linked with COVID-19. Early detection and correct treatment of angioedema types are crucial for patient outcomes.

    Keywords:
    COVID-19anaphylaxisangioedemabradykininforensic pathology

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    Area of Science:

    • Immunology
    • Pathology
    • Infectious Diseases

    Background:

    • Angioedema is a non-dependent, non-pitting edema with histamine-mediated and bradykinin-mediated forms.
    • Bradykinin-mediated angioedema is distinct, slower in onset, involves oropharyngeal structures, and is unresponsive to standard anaphylaxis treatments.
    • COVID-19 has been associated with various inflammatory and vascular complications.

    Purpose of the Study:

    • To present two fatal cases of angioedema co-occurring with COVID-19 infection.
    • To analyze autopsy findings, histology, and laboratory data in these cases.
    • To discuss the relationship between COVID-19 and angioedema, emphasizing diagnostic and treatment considerations.

    Main Methods:

    • Case report of two male decedents with angioedema and COVID-19.
    • Detailed gross autopsy, histological examination, and review of laboratory values.
    • Literature review on angioedema subtypes and COVID-19-related complications.

    Main Results:

    • Two cases of angioedema-induced death were identified in individuals with concurrent COVID-19 infections.
    • Autopsy and histological findings provided insights into the pathological mechanisms.
    • Laboratory values were analyzed in the context of angioedema and viral infection.

    Conclusions:

    • The study highlights a potential link between COVID-19 and severe angioedema, leading to fatal outcomes.
    • Accurate differentiation between histamine-mediated and bradykinin-mediated angioedema is critical for appropriate management.
    • Early recognition and targeted treatment strategies are essential for improving prognosis in angioedema patients, especially those with COVID-19.