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The Impact of Long COVID-19 on the Cardiovascular System
Matthew W McMaster1, Subo Dey, Tzvi Fishkin
1From the Departments of Cardiology and Medicine, Westchester Medical Center, Valhalla, NY.
Insights
Long COVID, a persistent condition after SARS-CoV-2 infection, causes significant cardiac issues like myocarditis. Early screening and interventions such as exercise may help manage long COVID symptoms and improve patient outcomes.
Area of Science:
- Cardiology
- Infectious Diseases
- Immunology
Background:
- Long COVID (post-acute sequelae of SARS-CoV-2 infection) presents persistent symptoms and significant long-term health consequences.
- Cardiac magnetic resonance imaging reveals structural changes post-COVID-19, indicating a heightened risk of cardiovascular diseases, particularly myocarditis.
Purpose of the Study:
- To investigate the pathophysiology of long COVID cardiac sequelae.
- To highlight the role of angiotensin-converting enzyme 2 (ACE2) receptor binding in disease progression.
- To explore potential interventions for alleviating long COVID symptoms.
Main Methods:
- Review of existing cardiac magnetic resonance imaging studies.
- Analysis of the pathophysiological mechanisms involving ACE2 receptor upregulation and inflammation.
- Examination of pre-existing conditions influencing disease severity.
Main Results:
- COVID-19 infection leads to cardiac structural changes and increased cardiovascular disease burden, including myocarditis.
- Inflammation exacerbates viral binding to ACE2 receptors, influencing disease outcomes based on individual immune responses.
- Pathophysiological changes contribute to long COVID cardiac issues like inappropriate sinus tachycardia and orthostatic intolerance.
Conclusions:
- Long COVID poses a significant threat with persistent cardiac sequelae.
- Increased screening and low-risk interventions like exercise may mitigate long COVID's impact.
- Ongoing research, including NIH's RECOVER trials, aims to identify effective treatments for long COVID.
Abstract:
Long coronavirus disease (COVID) is the development or persistence of symptoms after an acute SARS-CoV-2 (COVID-19) infection. Fewer patients are developing acute COVID-19 infections, but patients with long COVID continue to have alarming long-term sequelae. Many cardiac magnetic resonance imaging studies show significant changes in cardiac structure after a COVID-19 infection, suggestive of an increased burden of many cardiovascular diseases, notably myocarditis. The pathophysiology of COVID-19 requires viral binding to angiotensin-converting enzyme 2 protein receptors throughout the body, which are upregulated by inflammation. Consequently, the numerous preexisting conditions that worsen or prolong inflammation enhance this binding and have differing effects on patients based on their unique immune systems. These pathophysiological changes drive long COVID cardiac sequelae such as inappropriate sinus tachycardia, postural orthostatic tachycardia, and other types of orthostatic intolerance. Increased screening for long COVID and low-risk interventions such as exercise regimens could alleviate the suffering endured by patients with long COVID. Many studies such as the Researching COVID to Enhance Recovery Initiative (RECOVER) trials at the National Institutes of Health are exploring potential treatments for long COVID patients.
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