COVID-19 patient outcomes affected by cardiovascular risk

November 17, 2020

DALLAS - Nov. 17, 2020 - Research presented today by UT Southwestern cardiologists at the annual American Heart Association (AHA) Scientific Sessions 2020 showed that Black and Hispanic people were more likely to be hospitalized with COVID-19 than white patients, and that nonwhite men with cardiovascular disease or risk factors were more likely to die.

In one of the conference's late-breaking research sessions, James de Lemos, M.D., a professor of internal medicine who holds a distinguished chair in cardiology at UTSW, discussed COVID-19 Cardiovascular Disease Registry: Design, Implementation, and Initial Results.

The American Heart Association COVID-19 Cardiovascular Disease Registry was created by volunteers and AHA staff and launched in the spring at the outset of the pandemic. To date, the registry has gathered records on more than 22,500 patients from 109 U.S. health care centers in 34 states, including data points on patient demographics, cardiovascular risk factors, comorbidities, medications prior to admission, treatments during hospitalization, disease severity measures, and laboratory results.

In a related study, Racial and Ethnic Differences in Treatment and Outcomes for Patients Hospitalized with COVID-19: Findings from the American Heart Association COVID-19 Cardiovascular Disease Registry, deLemos and his team studied 8,000 COVID-19 patients who were hospitalized from Jan. 17 to July 22. This group was treated at 88 hospitals. One-third were Hispanic, 25.5 percent were non-Hispanic Black, 6.3 percent were Asian, and 35.2 percent were non-Hispanic white. Black patients were younger with higher rates of obesity, high blood pressure, and diabetes, and were also more likely to require a ventilator or kidney dialysis than white patients.

"The results highlight the disproportionate burden of COVID-19 among Black and Hispanic patients, and imply there are factors in the U.S. that existed prior to hospitalization that are driving these disparities in COVID hospitalization and death," says de Lemos, who served as co-chair of the steering committee for the registry.

In another late-breaking session, Ann Marie Navar, M.D., Ph.D., reported that a review of nearly 20,000 patients revealed that cardiovascular disease or CVD risk factors in COVID-19 patients dramatically increased the risk of in-hospital mortality. The risk of death was particularly high for older, nonwhite men.

Navar's research team studied electronic health records from 54 health systems that use a COVID-19 database provided by Cerner, a health information technology firm. The results, measured from January to May and shared in "Impact of Cardiovascular Disease on Outcomes Among Hospitalized COVID-19 Patients: Results From >14,000 Patients Across the U.S.," showed that in-hospital mortality ranged from 28.5 percent for patients with hypertension to 28.6 percent for those with diabetes, 25.5 percent for those with coronary artery disease, and 38.4 percent for those with heart failure.

Just 1.5 percent of the patients had a stroke while hospitalized for COVID-19, but the mortality rate was 56 percent among this group. Similarly, 5 percent of patients had a heart attack, and 55.5 percent of these individuals died during their hospital stay.

"These data reflect what doctors and nurses on the front lines in hospitals across the U.S. are actually seeing, where more than 1 in 15 patients hospitalized with COVID-19 does not make it home," says Navar. She conducted the research at the Duke Clinical Research Institute before joining UT Southwestern as an associate professor of internal medicine and population and data sciences.
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The American Heart Association's Scientific Sessions, held virtually this year Nov. 13-17, presented the latest advancements, research, and evidence-based clinical practice updates in cardiovascular science for health care worldwide.

At UT Southwestern, de Lemos holds the Sweetheart Ball-Kern Wildenthal, M.D., Ph.D. Distinguished Chair in Cardiology.

Navar is a consultant for Cerner and is an uncompensated research principal investigator with the firm.

About UT Southwestern Medical Center

UT Southwestern, one of the premier academic medical centers in the nation, integrates pioneering biomedical research with exceptional clinical care and education. The institution's faculty has received six Nobel Prizes, and includes 23 members of the National Academy of Sciences, 17 members of the National Academy of Medicine, and 13 Howard Hughes Medical Institute Investigators. The full-time faculty of more than 2,500 is responsible for groundbreaking medical advances and is committed to translating science-driven research quickly to new clinical treatments. UT Southwestern physicians provide care in about 80 specialties to more than 105,000 hospitalized patients, nearly 370,000 emergency room cases, and oversee approximately 3 million outpatient visits a year.

UT Southwestern Medical Center

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