A 12-lead electrocardiogram revealed clear signs of myocardial injury related to COVID-19 and symptoms of heart failure.

The study, published in the Journal of Internal Medicine, explored data from a massive patient registry in Sweden. 

A cardiologist detected Sweeney’s condition during a mandatory checkup.

Blood clots are unusually common—and quite fatal—among patients hospitalized with COVID-19.

A moment of silence has been planned to celebrate the late cardiologist's memory. 

During a government-regulated lockdown in Argentina, patients admitted to the emergency department were much more likely to have high blood pressure. 

“These observations support rigorous adherence to COVID-19 prevention strategies in obese individuals of all ages,” the researchers wrote. 

Anthony S. Fauci, MD, a central figure in the White House Coronavirus Task Force, spoke at length about COVID-19 during the AHA's Scientific Sessions 2020 virtual meeting. 

Anticoagulation therapies are an important part of treating COVID-19 patients—but there appears to be no benefit to taking a more aggressive approach.

"Patients and physicians need to monitor for these arrhythmias closely and treatments needs to be timely," one researcher warned. 

Pfizer's early vaccine results could represent a key step forward in the race to finally end the COVID-19 pandemic.

This latest analysis compared the outcomes of hospitalized COVID-19 patients treated with hydroxychloroquine and those who received a placebo.