The Apple Watch electrocardiogram is able to alert a patient with left ventricular failure (or (heart pump failure), with the help of an algorithm developed by the Mayo Clinic. And this, despite the unique derivation of the watch’s ECG sensor.
No need to pass a complete electrocardiogram in the clinic, which includes twelve leads and which is much more complicated to perform than on the Apple Watch – all you have to do is put your finger on the digital crown for 30 seconds and bim.
Basically, the Apple Watch ECG can detect a atrial fibrillation, while the heart rate monitor continuously measures the pulse. In the event of an arrhythmia (irregular beat, too fast or too slow), the Apple Watch sends a notification to the wearer. The manufacturer will be able to add this left ventricular failure alert to its arsenal, if by chance it integrates the algorithm developed by the famous American network of clinics.
This insufficiency affects 2 to 3% of the world’s population, and up to 9% among people aged 60 and over. It’s starting to make a lot of people, especially since abortion is not necessarily accompanied by symptoms (the condition can however be associated with difficult breathing, swelling of the legs or even an accelerating heart rate ).
As soon as the doctor knows that a patient has this disease, he can act accordingly: there are treatments. You still need to know… This is where the Apple Watch comes in, on which it is very easy to do an ECG. To design this algorithm, the researchers modified the one used to identify the condition with a twelve-lead electrocardiograph.
Artificial intelligence had to be exploited to adapt this technique to an ECG with a single lead. To verify and refine the results, a study was organized with 2,454 participants from eleven countries, owners of iPhones, the Mayo Clinic app and an Apple Watch Series 4 or newer, who sent more than 125 000 electrocardiograms over a period of six months.
According to preliminary data, the algorithm performs as well or slightly better than a traditional test. ” Analysis with artificial intelligence of the ECG of a watch is a powerful test to identify left ventricular failure says Dr. Itzhak Zachi Attia, AI Manager in the Department of Cardiovascular Medicine at the Mayo Clinic.
This test demonstrates in any case that the ECG of the Apple Watch, although limited with its unique derivation, can provide useful medical information. Enough to reinforce the “clinical use on the wrist” of the watch.
Interview: cardiologists face the ECG of the Apple Watch
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