“COVID-19 has resulted in considerable morbidity and mortality worldwide since December 2019,” the researchers wrote. “However, information on cardiac injury in patients affected by COVID-19 is limited.”
— JAMA Cardiology (@JAMACardio) March 25, 2020
The authors included 416 consecutive patients presenting with lab-confirmed COVID-19 between January 20, 2020, and February 10, 2020, in Renmin Hospital at Wuhan University. The study data consisted of clinical lab, treatment, and radiological data. The median age of the patient population was 64 years (age range, 21 to 95 years), with 211 female patients (50.7%). Common COVID-19 symptoms included fever, cough, and shortness of breath.
Cardiac Injury and Increased Mortality
A total of 82 patients had cardiac injury. These patients tended to be older (median 74 years vs. 60 years in non-injury cohort), had more comorbidities, had higher leukocyte counts, higher C-reactive protein levels, procalcitonin, creatinine kinase–myocardial band, myohemoglobin, high-sensitivity troponin I, N-terminal pro-B-type natriuretic peptide, aspartate aminotransferase, and creatinine levels. They also had a higher proportion of multiple mottling and ground-glass opacity. More patients with cardiac injury required non-medical ventilation (18 of 82 [22.0%] vs. 14 of 334 [4.2%]; P<0.001) compared to those without injury. Complications such as acute respiratory distress syndrome, acute kidney injury, electrolyte disturbances, and coagulation disorders were more common in patients with myocardial injury than in those without.
Patients with cardiac injury also had higher rates of mortality compared with those without injury (42 of 82 [51.2%] vs. 15 of 334 [4.5%]; P<0.001), and a Cox regression model showed that patients with cardiac injury were at a higher risk for death both during symptom onset and from admission to endpoint.
“Cardiac injury is a common condition among hospitalized patients with COVID-19 in Wuhan, China, and it is associated with higher risk of in-hospital mortality,” the researchers concluded.
Interesting analysis of the role of cardiac injury in #COVID19 in 416 pts from Wuhan. 20% of pts had TnI over the 99 %ile. In-hosp mortality of 51% with vs 5% without. Is this cause or effect? Difficult to know if these pts are just sicker or if it is a causal mechanism. https://t.co/slxgRLBzP6
— Stephen Dolgner (@StephenDolgner) March 25, 2020
Cardiac injury is a common condition among hospitalized patients with #COVID19 in Wuhan and is associated with higher risk of in-hospital mortality. Via @JAMACardio https://t.co/bbbCJfNwiQ pic.twitter.com/9k1tIhlT84
— Muin J. Khoury (@MuinJKhoury) March 25, 2020
JAMA study: Over 50% of #coronavirus patients die from Cardiac injury known as myocardial injury.
— Coronavirus Updates – Alexander Higgins (@kr3at) March 25, 2020