How does cardiovascular disease increase the risk of severe illness and death from COVID-19?

Based on reports from China, we know that most COVID-19 patients (about 80%) will develop mild flulike symptoms, including fever, dry cough, and body aches that can be managed at home. 20% will develop more serious symptoms, such as pneumonia requiring hospitalization, with about a quarter of these requiring ICU-level care. Initial reports focused on the respiratory effects of COVID-19, such as pneumonia and difficulty breathing. But more recent literature has described serious cardiovascular complications occurring in about 10% to 20% of hospitalized patients. Someone with pre-existing heart disease who becomes ill with COVID-19 may suffer a heart attack or develop congestive heart failure. This rapid worsening of cardiovascular health is likely due to a combination of the severe viral illness and its increased demands on the heart (fever causes rapid heart rate, for example), compounded by low oxygen levels due to pneumonia and increased propensity for blood clot formation. In addition to the increase in these heart problems, a more unusual condition called myocarditis has also been observed in COVID-19 patients. COVID-19 triggers inflammation of the heart muscle Some COVID-19 patients who appear to be having a heart attack are instead suffering from marked inflammation of the heart muscle, called myocarditis. The electrocardiograms in these patients show changes suggestive of a major heart attack, and blood tests reveal elevated levels of troponin, a cardiac enzyme that is...
Source: Harvard Health Blog - Category: Consumer Health News Authors: Tags: Health Heart Health Hypertension and Stroke Infectious diseases Source Type: blogs

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Source: Advances in Experimental Medicine and Biology - Category: Research Tags: Adv Exp Med Biol Source Type: research
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Source: Advances in Experimental Medicine and Biology - Category: Research Tags: Adv Exp Med Biol Source Type: research
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Source: Guardian Unlimited Science - Category: Science Authors: Tags: Coronavirus outbreak World news Australia news UK news US news Asia Pacific Russia China Brazil Americas Africa Middle East and North Africa Science Infectious diseases Europe Source Type: news
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Source: AllAfrica News: Health and Medicine - Category: African Health Source Type: news
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