COVID-19 Latest: Medical Researchers Say That Right Ventricle Enlargement Of The Heart Is A Major Predictor For Mortality Among COVID-19 Patients
: Medical researchers from Icahn School of Medicine at Mount Sinai based on a new study, say that enlargement of one of the heart's four chambers ie the right ventricle is the best predictor of which patients with severe Covid-19 infections were most likely to die.
The research team looked at the health records of 105 COVID-19 patients hospitalized at Mount Sinai Morningside in New York City between March 26th and April 22nd.
From the study details, of the 105 patients in the study, 32 of them or 31% had dilation of the right ventricle based on an echocardiogram, or ultrasound of the heart. Of these, 41% died by the end of the study period, compared to 11% of those without right ventricular enlargement.
It was observed that enlargement of the right ventricle was the only variable that was significantly associated with mortality in this group of COVID-19 patients, according to the research, which has been accepted for publication in the Journal of the American College of Cardiology. https://imaging.onlinejacc.org/content/early/2020/05/13/j.jcmg.2020.05.010?_ga=2.153782384.970991286.1590033785-1533645721.1588069135
Dr Edgar Argulian, an Assistant Professor of medicine and a lead author on the study told Thailand Medical News, "This research provides important evidence associating right heart strain with adverse outcomes in hospitalized patients with COVID-19 infection."
He further added, "Clinicians can use bedside echocardiography as a readily available tool to identify patients with COVID-19 infection at the highest risk of adverse hospital outcomes.”
It should be noted that this is not the first time an association has been found between COVID-19 and right ventricular enlargement. Earlier this month, a case series in the New England Journal Of Medicine described five critically ill COVID-19 patients with enlargement of the right ventricle. https://www.nejm.org/doi/pdf/10.1056/NEJMc2010459
However, the reason behind the new findings remains unknown. Enlargement of the right ventricle may be caused by obstruction of blood flow in the lungs due to blood clots or lung tissue damage, according to the new study's authors.
Also direct damage to heart tissue by the coronavirus may also be a contributing factor, they added.
The SARS-CoV-2 coronavirus has previously been found to invade heart tissue because cardiac muscle cells are rich in ACE2 receptors, a molecular doorway used by the coronavirus, according to the American Heart Association.
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