Novel heart ultrasound measures can be used to predict risk of developing dementia (Detecting atrial myopathy identifies up to 2X higher dementia risk)

Medical Xpress / University of Minnesota Medical School / JAMA ^ | Mar. 22, 2022 | Kat Dodge / Wendy Wang et al

[ConservativeMind]

Published in JAMA, research from the University of Minnesota assessed if there is a link between heart health and dementia.

Using echocardiography—visual ultrasound of the heart—the research team was able to identify novel measures that are linked to a higher dementia risk.

"Atrial myopathy, a condition characterized by abnormal left atrial function and size, is an independent risk factor for dementia," said Dr. Lin Yee Chen, and principal investigator. "In this community-based cohort study, lower left atrial function was associated with higher risk of dementia."

The study observed a cohort of 4,096 participants with an average age of 35 years. Participants were 60% women, 22% Black and 78% white. Of the cohort, there were 531 participants who developed dementia over a six year period.

When comparing the lowest to the highest quintile of left atrial function measures (reservoir strain, conduit strain, and contractile strain), the lowest quintile was significantly associated with 1.5 to 2.0-fold higher risk of developing dementia. These associations were independent of cardiovascular disease and atrial fibrillation. The research team found that the more common measures of left atrial size were not significantly associated with dementia.

"Results of this epidemiological study improve our understanding of the link between cardiovascular disease and increased risk of dementia," said Jacqueline D. Wright, Dr.P.H. "This study suggests that atrial myopathy increases risk of dementia, independently of atrial fibrillation. Further research may confirm this finding, help us to better define and diagnose atrial myopathy, and ultimately lead to improved treatments that reduce the chance of developing dementia later in life."

Researchers recommend additional studies to confirm their findings and to establish a robust definition for atrial myopathy.

[ConservativeMind]

This is an inexpensive way to harmlessly detect and predict this potential issue.

[ConservativeMind]

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