Apple Watch might detect weak heart pump in patients


Remote detection of a weak cardiac pump was made possible with the use of Apple Watch ECG data and an algorithm developed at Mayo Clinic.

A total of 2,454 Mayo Clinic patients having an iPhone and an Apple Watch with ECG capabilities were included in the research. According to the findings, a weak cardiac pump may be detected early using an Apple Watch ECG and a well-developed algorithm.

According to the Mayo Clinic, the data gathered from the Apple Watch was clean and precise enough to be included in the research. During the six-month trial period, 125,610 ECGs were sent from 46 states and 11 countries.


These ECGs were then run through a 12-lead ECG machine programme that had been built to analyse these ECGs. In spite of the fact that the Apple Watch only has one ECG lead, Mayo Clinic’s chief AI scientist, Itzhak Zachi Attia, Ph.D. was able to modify the algorithm for single-lead usage.

An Apple Watch ECG was taken within 30 days following a professionally prescribed ECG in 420 of the individuals studied. The results demonstrated that data from an Apple Watch, when combined with the algorithm, might detect a weak cardiac pump as well as, if not better than, a treadmill test.

Doctor Friedman describes this test as a first step since it shows that a single-lead watch may provide us with medically valuable information.


“Global prospective studies are in the works to test this in a wider range of individuals and establish that it has a clinical advantage. This is the future of medicine: low-cost diagnosis of severe illness from the comfort of your couch.”

According to Mayo Clinic, 2 percent to 3 percent of the world’s population suffers from a syndrome known as left ventricular dysfunction. It is estimated that 9 percent of the population over the age of 60 suffers from this condition, which may cause shortness of breath, swollen legs, and rapid heartbeat.

One must get therapy as soon as possible if they suspect they have a weak cardiac pump. The issue can only be detected if people schedule an appointment and pay for the costly in-person treadmill test.


Doctors will be able to tell whether a patient has a weak heart pump by using an algorithm developed by Mayo Clinic and an Apple Watch. In addition to fall detection and abnormal heart rate monitoring, Apple Watch will now have this new capability.

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