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US researchers from Massachusetts General Hospital and Northwestern University have conducted a study of a subcutaneous chip. Preliminary studies have shown that the chip can potentially identify patients at risk of recurrent stroke.
Chip with promising research results
The chip in patients who have undergone a stroke caused by stenosis of large arteries, such as the common carotid artery, and blockage of small arteries deep in the brain who are not expected to have atrial fibrillation has been tested by researchers at Massachusetts General Hospital and Northwestern University.
The results of the chip study were published in the Journal of the American Medical Association in June 2021. The study involved 492 patients, 242 of whom had the chip implanted within 10 days of their first stroke, and 250 of whom received standard care and had regular tests: ECG, Holter monitoring, telemetry or event recorders. After one year, it was found that the chip detected atrial fibrillation in 12.1% of people, compared with only 1.8% for standard follow-up.