Toronto’s UHN launches a study to see if Apple Watch can spot worsening heart failure

How a consumer wearable could transform cardiovascular care

Toronto’s University Health Network (UHN), a group of working research hospitals in the city, could shift our approach to treatment in an area of growing concern in human health. The study, led by Dr. Heather Ross, will investigate whether the Apple Watch can provide early warnings about potentially worsening health for patients following incidents of heart failure.

The study, which is aiming to eventually span around 200 patients, and which already has a number of participants enrolled spanning ages from 25 to 90, and various demographics will use the Apple Watch Series 6 and its onboard sensors to monitor signals, including heart rate, blood oxygen, general activity levels, overall performance during a six-minute walk test and more. Researchers led by Ross will compare this data to measurements taken from the more formal clinical tests currently used by physicians to monitor the recovery of heart failure patients during routine, periodic check-ups.

The hope is that Ross and her team will be able to identify correlations between signs they’re seeing from the Apple Watch data, and the information gathered from the proven medical diagnostic and monitoring equipment. If they can verify that the Apple Watch accurately reflects what’s happening with a heart failure patient’s health, it has tremendous potential for treatment and care.

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