Chronic inflammation
Commenting on the findings, Benjamin Goldstein, MD, PhD, professor of psychiatry and pharmacology at the University of Toronto, noted that there are clear disparities in access to, and quality of care among, patients with BD and other serious mental illnesses.
Dr. Benjamin Goldstein
“Taking heart disease as an example, disparities exist at virtually every point of contact, ranging from the point of preventive care to the time it takes to be assessed in the ER, to the likelihood of receiving cardiac catheterization, to the quality of postdischarge care,” said Dr. Goldstein.
He also noted that CVD occurs in patients with BD, on average, 10-15 years earlier than the general population. However, he added, “there is important evidence that when people with BD receive the same standard of care as those without BD their cardiovascular outcomes are similar.”
Dr. Goldstein also noted that inflammation, which is a driver of cardiovascular risk, is elevated among patients with BD, particularly during mania and depression.
“Given that the average person with BD has some degree of mood symptoms about 40% of the time, chronically elevated inflammation likely contributes in part to the excess risk of heart disease in bipolar disorder,” he said.
Dr. Goldstein’s team’s research focuses on microvessels. “We have found that microvessel function in both the heart and the brain, determined by MRI, is reduced among teens with BD,” he said.
His team has also found that endothelial function in fingertip microvessels, an indicator of future heart disease risk, varies according to mood states.
“Collectively, these findings suggest the microvascular problems may explain, in part, the extra risk of heart disease beyond traditional risk factors in BD,” he added.
The study was funded by a Wellcome Trust Senior Clinical Research Fellowship and by the Oxford Health Biomedical Research Centre. Dr. Paljärvi and Dr. Goldstein report no relevant financial relationships.
A version of this article appeared on Medscape.com.