Apple Working With Stanford to Determine If Apple Watch Can Detect Abnormal Heart Rhythms

Apple is planning to work with Stanford and telemedicine vendor American Well to determine whether the heart rate sensor in the Apple Watch can be used to detect abnormal heart rhythms and common heart conditions, reports CNBC.

An Apple Watch, if able to accurately detect arrhythmias, or abnormal heart patterns, could identify patients that are at a high risk of atrial fibrillation or similar conditions. Heart arrhythmias aren't always symptoms of a serious disease, but Apple Watch owners could find out about a problem from the Apple Watch and then get it checked out at a doctor if the device is determined to accurately predict heart problems.

Apple Watch Heart Rate Monitor 1

"Atrial fibrillation is a common rhythm disorder and knowing someone has it is medically useful because those people might need specific treatments," said Bob Wachter, chair of the Department of Medicine at the University of California San Francisco.

A study conducted by the University of California, San Francisco and the team behind the Cardiogram app previously determined that the Apple Watch was able to detect abnormal heart rhythms with 97 percent accuracy. Apple could get even better results as it has access to raw data.

Just today, Apple CEO Tim Cook talked about Apple's health interests in an interview with Fortune. He said Apple is "extremely interested" in health, and that it represents a major business opportunity.

If you look at it, medical health activity is the largest or second-largest component of the economy, depending on which country in the world you're dealing with. And it hasn't been constructed in a way where the focus at the device level is making great products from a pure point of view. The focus has been on making products that can get reimbursed through the insurance companies, through Medicare, or through Medicaid. And so in some ways we bring a totally fresh view into this and say, 'Forget all of that. What will help people?'

Cook also said that Apple has been surprised to learn how the heart rate monitoring in the Apple Watch has already been helping people. Many people collect data with the Apple Watch, notice something amiss, and then go to the doctor to get it checked out. "A not-insignificant number have found out if they hadn't come into the doctor they would have died," said Cook.

Apple's study in partnership with American Well and Stanford is set to begin later this year, according to CNBC's sources.

Popular Stories

Apple One Apps Feature 2

Apple One's Best Plan Now Includes Two More Perks For Free

Monday March 10, 2025 6:40 am PDT by
Apple One allows you to subscribe to up to six Apple services for one discounted monthly price. There are three Apple One tiers: Individual, Family, and Premier. Over the last month, the highest-end ‌Apple One‌ Premier plan has gained two additional perks. Here is what Apple One Premier already included, for $37.95 per month:Apple Music Apple TV+ Apple Arcade Apple News+ Apple Fitness+...
iPhone 16 Pro vs iPhone 17 Air Feature

iPhone 17 Air and 17 Pro Max Allegedly Same Size Apart From Thickness

Friday March 7, 2025 2:45 am PST by
Apple's all-new ultra-thin iPhone 17 Air shares the same dimensions as the iPhone 17 Pro Max, with the only difference being in the thickness of the devices, according to the leaker Ice Universe. Posting to their Weibo account, the Chinese leaker today claimed that the iPhone 17 Air and iPhone 17 Pro Max have identical body length, width, screen size, and bezels. "The only difference is the...
2016 12 inch macbook feature

Apple Introduced Its Most Controversial MacBook 10 Years Ago Today

Sunday March 9, 2025 1:00 am PST by
Apple announced the infamous 12-inch Retina MacBook a decade ago today, an experimental new Mac that was as controversial as it was revolutionary. Apple unveiled the 12-inch MacBook on March 9, 2015, at the "Spring Forward" event in San Francisco, California. The event was primarily focused on the Apple Watch, which was being fully detailed ahead of its launch the following month, so the...
Generic iOS 19 Feature Mock Light

iOS 19 Will Bring Biggest Design Overhaul Since iOS 7

Monday March 10, 2025 12:17 pm PDT by
Apple is planning for a major design overhaul of the iPhone, iPad, and Mac interfaces with the introduction of iOS 19, iPadOS 19, and macOS 16 later this year, reports Bloomberg. The update will "fundamentally change" the look of Apple's operating system, introducing a more consistent cross-platform experience. Apple plans to update the style of icons, menus, apps, windows, and system...
iPhone 17 Pro Render Front Page Tech

iPhone 17 Pro Launching Later This Year With These 8 New Features

Tuesday March 4, 2025 3:15 pm PST by
While the iPhone 17 Pro and iPhone 17 Pro Max are not expected to launch until September, there are already plenty of rumors about the devices. iPhone 17 Pro's alleged design via Front Page Tech Below, we recap key changes rumored for the iPhone 17 Pro models as of March 2025: Aluminum frame: iPhone 17 Pro models are rumored to have an aluminum frame, whereas the iPhone 15 Pro and iPhone...
iphone 17 mockups idevicehelp

Video Shows iPhone 17 Mockups Based on 'Internal Documents'

Monday March 10, 2025 4:41 am PDT by
YouTuber iDeviceHelp on Friday posted a video that shows off mockups of Apple's forthcoming iPhone 17 models that are purportedly based on "internal documents." We're sharing the video here since it was made in collaboration with leaker Majin Bu, who last month published similar iPhone 17 renders that were widely corroborated by separate leakers with links to Apple's Chinese supply chain....
iphone 17 pro asherdipps

iPhone 17 Pro Max Said to Be Thicker to Accommodate Larger Battery

Friday March 7, 2025 2:47 am PST by
Apple has increased the thickness of the upcoming iPhone 17 Pro Max compared to the current generation iPhone 16 Pro Max, claims the Chinese leaker known as Ice Universe. Apple is said to have increased the depth of the iPhone 17 Pro Max to 8.725mm, up from 8.25mm on the iPhone 16 Pro Max, which would be a 0.475mm difference in thickness. The increase "surely means a larger battery,"...
Apple MacBook Air hero

New MacBook Air Quietly Fixes This Decades-Long Design Oversight

Friday March 7, 2025 6:58 am PST by
In a move that probably won't make headlines but should delight detail-oriented Mac users everywhere, Apple has quietly corrected a 26-year-old design inconsistency on its keyboards. The Mute key, a staple on Mac keyboards since the PowerBook G3 'Lombard' debuted in 1999, has finally received a logical redesign on the new MacBook Air with M4 chip. As spotted by iCulture, the key now displays ...
Apple Intelligence General Feature

Apple Delays Apple Intelligence Siri Features

Friday March 7, 2025 9:35 am PST by
Apple is delaying some of the Apple Intelligence Siri features that it expected to release in iOS 18, an Apple spokesperson said in a statement to Daring Fireball. Apple says that it is going to take longer than expected to roll out the more personalized Siri experience, and that these features will be rolled out "in the coming year.""Siri helps our users find what they need and get things...

Top Rated Comments

Mansu944 Avatar
98 months ago
('https://www.macrumors.com/2017/09/11/apple-watch-stanford-abnormal-heart-rhythms/')


Apple is planning to work with Stanford and telemedicine vendor American Well to determine whether the heart rate sensor in the Apple Watch can be used to detect abnormal heart rhythms and common heart conditions, reports CNBC ('https://www.cnbc.com/2017/09/11/apple-watch-caridac-arrhythmia-tests-stanford-american-well.html').

An Apple Watch, if able to accurately detect arrhythmias, or abnormal heart patterns, could identify patients that are at a high risk of atrial fibrillation or similar conditions. Heart arrhythmias aren't always symptoms of a serious disease, but Apple Watch owners could find out about a problem from the Apple Watch and then get it checked out at a doctor if the device is determined to accurately predict heart problems.


A study conducted by the University of California, San Francisco and the team behind the Cardiogram app previously determined ('https://www.macrumors.com/2017/05/11/apple-watch-abnormal-heart-rhythm-detection/') that the Apple Watch was able to detect abnormal heart rhythms with 97 percent accuracy. Apple could get even better results as it has access to raw data.

Just today, Apple CEO Tim Cook talked about Apple's health interests in an interview ('https://www.macrumors.com/2017/09/11/tim-cook-apple-changes-the-world-interview/') with Fortune. He said Apple is "extremely interested" in health, and that it represents a major business opportunity.Cook also said that Apple has been surprised to learn how the heart rate monitoring in the Apple Watch has already been helping people. Many people collect data with the Apple Watch, notice something amiss, and then go to the doctor to get it checked out. "A not-insignificant number have found out if they hadn't come into the doctor they would have died," said Cook.

Apple's study in partnership with American Well and Stanford is set to begin later this year, according to CNBC's sources.

Article Link: Apple Working With Stanford to Determine If Apple Watch Can Detect Abnormal Heart Rhythms ('https://www.macrumors.com/2017/09/11/apple-watch-stanford-abnormal-heart-rhythms/')
Now this is really cool...I'm excited where the apple watch can go.
Score: 9 Votes (Like | Disagree)
Rarecandie Avatar
98 months ago
('https://www.macrumors.com/2017/09/11/apple-watch-stanford-abnormal-heart-rhythms/')


Apple is planning to work with Stanford and telemedicine vendor American Well to determine whether the heart rate sensor in the Apple Watch can be used to detect abnormal heart rhythms and common heart conditions, reports CNBC ('https://www.cnbc.com/2017/09/11/apple-watch-caridac-arrhythmia-tests-stanford-american-well.html').

An Apple Watch, if able to accurately detect arrhythmias, or abnormal heart patterns, could identify patients that are at a high risk of atrial fibrillation or similar conditions. Heart arrhythmias aren't always symptoms of a serious disease, but Apple Watch owners could find out about a problem from the Apple Watch and then get it checked out at a doctor if the device is determined to accurately predict heart problems.


A study conducted by the University of California, San Francisco and the team behind the Cardiogram ('https://itunes.apple.com/us/app/cardiogram/id1000017994?ls=1&mt=8') app previously determined ('https://www.macrumors.com/2017/05/11/apple-watch-abnormal-heart-rhythm-detection/') that the Apple Watch was able to detect abnormal heart rhythms with 97 percent accuracy. Apple could get even better results as it has access to raw data.

Just today, Apple CEO Tim Cook talked about Apple's health interests in an interview ('https://www.macrumors.com/2017/09/11/tim-cook-apple-changes-the-world-interview/') with Fortune. He said Apple is "extremely interested" in health, and that it represents a major business opportunity.Cook also said that Apple has been surprised to learn how the heart rate monitoring in the Apple Watch has already been helping people. Many people collect data with the Apple Watch, notice something amiss, and then go to the doctor to get it checked out. "A not-insignificant number have found out if they hadn't come into the doctor they would have died," said Cook.

Apple's study in partnership with American Well and Stanford is set to begin later this year, according to CNBC's sources.

Article Link: Apple Working With Stanford to Determine If Apple Watch Can Detect Abnormal Heart Rhythms ('https://www.macrumors.com/2017/09/11/apple-watch-stanford-abnormal-heart-rhythms/')
[doublepost=1505197524][/doublepost]I can say my Apple Watch saved my life. I had very strange readings and went to my Doctor. He looked at them sent me off to a cardiologist who diagnosed me with ventricular tachycardia and implanted a defibrillator which saved my life August 24. I sent a thank you to Tim and everyone in Cupertino. I had no clue I had this issue before the watch.
Score: 8 Votes (Like | Disagree)
190991 Avatar
98 months ago
Few non-medical people understand the difference between heart rate (detected by the electrical activity of the heart - ECG/EKG) and the pulse rate, which is detected by pulse oximetry and the like (ie. the Apple Watch).

They are not the same and can differ markedly.

There is an awful lot you can't diagnose with the pulse rate alone and it would be dangerous to imply that you can, and make medical decisions with the data.

Leave the medical grade monitoring to medical grade equipment thanks....
Well even you don't understand the difference. Heart rate (number of contractions of the heart per minute) is not detected by electrocardiography (ECG) but rather by echocardiography (echo; ultrasound of the heart), or by auscultating the heart with a stethoscope. ECG only meassures the electrical activity, which not always translates into a heart beat and thus not always contributes to the heart rate.

Regardless, a pulse measurement may be able to indicate an arythmia. It would probably miss some of the arythmias, but it would rarely give false positive results as the difference from electrical activity to heart rate to pulse is usually a loss of frequency rather than addition. Thus a warning about an uneven or too fast pulse would rarely be false positive. This would possibly help find plenty of undiagnosed atrial fibrillations – especially if data is combined with other predisposing risk factors such as age – and save people from strokes, for example.
Score: 6 Votes (Like | Disagree)
nitramluap Avatar
98 months ago
Few non-medical people understand the difference between heart rate (detected by the electrical activity of the heart - ECG/EKG) and the pulse rate, which is detected by pulse oximetry and the like (ie. the Apple Watch).

They are not the same and can differ markedly.

There is an awful lot you can't diagnose with the pulse rate alone and it would be dangerous to imply that you can, and make medical decisions with the data.

Leave the medical grade monitoring to medical grade equipment thanks....
Score: 5 Votes (Like | Disagree)
Juan007 Avatar
98 months ago
Amazing! The watch can literally save your life.
Score: 4 Votes (Like | Disagree)
ryanwarsaw Avatar
98 months ago
That's all good and great but I need an updated Mac Mini before my heart skips beats. Are you listening to me Timmy? The next 24 hours will define how we interact as human beings here on MR.
Score: 1 Votes (Like | Disagree)