idw – Informationsdienst Wissenschaft

Nachrichten, Termine, Experten

Grafik: idw-Logo
Thema Corona

Science Video Project
idw-Abo

idw-News App:

AppStore

Google Play Store



Instance:
Share on: 
09/06/2022 14:11

Long COVID after mild SARS-CoV-2 infection: persistent heart inflammation might explain heart symptoms

Dr. Markus Bernards Public Relations und Kommunikation
Goethe-Universität Frankfurt am Main

    The research team led by Dr Valentina Puntmann and Professor Eike Nagel from University Hospital Frankfurt and Goethe University Frankfurt followed up around 350 study participants without previously known heart problems who had recovered from a SARS-CoV-2 infection. They found that over half of them still reported heart symptoms almost a year later, such as exercise intolerance, tachycardia and chest pain. According to the study, these symptoms can be attributed to mild but persistent cardiac inflammation. Pronounced structural heart disease is not a characteristic of the syndrome. (Nature Medicine, DOI 10.1038/s41591-022-02000-0).

    FRANKFURT. After recovering from a SARS-CoV-2 infection, many people complain of persistent heart complaints, such as poor exercise tolerance, palpitations or chest pain, even if the infection was mild and there were no known heart problems in the past. Earlier studies, predominantly among young, physically fit individuals, were already able to show that mild cardiac inflammation can occur after COVID-19. However, the underlying cause of persistent symptoms, and whether this changes over time, was unknown.

    A team of medical scientists led by Dr Valentina Puntmann and Professor Eike Nagel from the Institute for Experimental and Translational Cardiovascular Imaging at University Hospital Frankfurt followed up 346 people – half of them women – between the age of 18 and 77 years, in each case around four and eleven months after the documented SARS-CoV-2 infection. For this purpose, the team analysed the study participants’ blood, conducted heart MRIs, and recorded and graded their symptoms using standardised questionnaires.

    The result: 73 percent reported heart problems at the beginning of the study and in 57 percent these symptoms persisted 11 months after the SARS-CoV-2 infection. The research team measured mild but persistent heart inflammation that was not accompanied by structural changes in the heart. Blood levels of troponin – a protein that enters the blood when the heart muscle is damaged – were also unremarkable.

    Dr Puntmann, who led the Impression COVID&Heart Study, explains: “The patients’ symptoms match our medical findings. It is important to note that although triggered by the SARS-CoV-2 virus, the post-COVID cardiac inflammatory involvement differs considerably from classic viral myocarditis. Extensive damage of the heart muscle leading to structural heart changes or impaired function are not characteristic at this stage of disease evolution.” The clinical picture is more reminiscent, she says, of the findings in chronic diffuse inflammatory syndromes such as autoimmune conditions. “Although most likely driven by a virus-triggered autoimmune process, a lot more research is needed in order to understand the underlying pathophysiology. Similarly, the long-term effects of cardiac inflammation following a mild COVID infection need to be clarified in future studies.”

    Because the study is restricted to a selected group of individuals who took part because they had symptoms, the prevalence of findings cannot be extrapolated to the population as a whole. Bayer AG, the German Heart Foundation and the German Centre for Cardiovascular Research supported the study.


    Contact for scientific information:

    Dr Valentina Puntmann
    University Hospital Frankfurt / Goethe University Frankfurt
    Institute for Experimental and Translational Cardiovascular Imaging
    Email: cvi-info@kgu.de
    https://www.cardiac-imaging.org/covid19-faq.html


    Original publication:

    Valentina O. Puntmann, Simon Martin, Anastasia Shchendrygina, Jedrzej Hoffmann, Mame Madjiguène Ka, Eleni Giokoglu, Byambasuren Vanchin, Niels Holm, Argyro Karyou, Gerald S. Laux, Christophe Arendt, Philipp De Leuw, Kai Zacharowski, Yascha Khodamoradi, Maria J. G. T. Vehreschild, Gernot Rohde, Andreas M. Zeiher, Thomas J. Vogl, Carsten Schwenke, Eike Nagel Long-term cardiac pathology in individuals with mild initial COVID-19 illness. Nature Medicine (2022) https://www.nature.com/articles/s41591-022-02000-0


    More information:

    https://www.forschung-frankfurt.uni-frankfurt.de/108536066.pdf? (Background information) The heart after COVID-19 – Long-term damage from COVID-19 does not always heal without treatment (Forschung Frankfurt 1.2021)


    Images

    Visualisation of heart inflammation by means of MRI: cardiologist Dr Valentina Puntmann monitors a study participant at the Institute for Experimental and Translational Cardiovascular Imaging at University Hospital Frankfurt.
    Visualisation of heart inflammation by means of MRI: cardiologist Dr Valentina Puntmann monitors a s ...
    Uwe Dettmar
    Goethe University Frankfurt


    Criteria of this press release:
    Journalists, Scientists and scholars
    Medicine
    transregional, national
    Research results, Scientific Publications
    English


     

    Visualisation of heart inflammation by means of MRI: cardiologist Dr Valentina Puntmann monitors a study participant at the Institute for Experimental and Translational Cardiovascular Imaging at University Hospital Frankfurt.


    For download

    x

    Help

    Search / advanced search of the idw archives
    Combination of search terms

    You can combine search terms with and, or and/or not, e.g. Philo not logy.

    Brackets

    You can use brackets to separate combinations from each other, e.g. (Philo not logy) or (Psycho and logy).

    Phrases

    Coherent groups of words will be located as complete phrases if you put them into quotation marks, e.g. “Federal Republic of Germany”.

    Selection criteria

    You can also use the advanced search without entering search terms. It will then follow the criteria you have selected (e.g. country or subject area).

    If you have not selected any criteria in a given category, the entire category will be searched (e.g. all subject areas or all countries).