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Top AI stories of the year

January 11, 2023
Artificial Intelligence
From the November 2022 issue of HealthCare Business News magazine

AI-enabled ECG detects risk of stroke and cognitive decline

AI-enabled ECG algorithms may be able to detect more than just risk of atrial fibrillation, but stroke and cognitive decline as well.

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One-third of ischemic strokes are associated with atrial fibrillations and can affect a person’s cognitive functioning. In previous studies, AI-enabled electrocardiography has identified brief episodes of atrial fibrillation and been able to predict the risk of it by up to 10 years prior to a clinical diagnosis.

In May, researchers at Mayo Clinic found that the technology may also be able to identify patients who are greater risk of cognitive decline. The algorithm showed that a high probability of atrial fibrillation was connected with the presence of infarctions (incidents of cerebral stroke) on MR.

The name of the study is Artificial Intelligence-Enabled Electrocardiogram for Atrial Fibrillation Identifies Cognitive Decline Risk and Cerebral Infarcts. “Artificial intelligence-enabled electrocardiography acquired during normal sinus rhythm was associated with worse baseline cognition and gradual decline in global cognition and attention. The findings raise the question whether initiation of anticoagulation is an effective and safe preventive strategy in individuals with a high AI-ECG algorithm score for reducing the risk of stroke and cognitive decline,” said Dr. Jonathan Graff-Radford, a Mayo Clinic neurologist and the study's corresponding author.

Assessing sinus-rhythm ECGs of 3,729 patients, the authors found that ECG atrial fibrillation scores correlated with a lower baseline and faster decline in cognitive scores. One-third of patients also had an MR, and cerebral infarcts detected with it were linked to high atrial fibrillation probability.

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