Cardiologist says more info needed

Jeff Williams, Chief Operating Officer of Apple, speaks about the the new Apple Watch Series 4 at an Apple Inc product launch event at the Steve Jobs Theater in Cupertino, California, September 12, 2018.

Stephen Lam | Reuters

Jeff Williams, Chief Operating Officer of Apple, speaks about the the new Apple Watch Series 4 at an Apple Inc product launch event at the Steve Jobs Theater in Cupertino, California, September 12, 2018.

For starters, doctors could be overwhelmed by healthy patients with Apple Watches rushing to the emergency room with inaccurate results. Or worse still, some patients might not go to the doctor if they think their Apple Watch is monitoring them when it isn’t.

“It can be game-changing for heart health if it is accurate,” says Patricia K. Nguyen, assistant professor of medicine in the cardiovascular division at Stanford University.

But Nguyen told CNBC she needs to know a lot more about how the technology works before making that assessment. She told me there are four key things she’d need to see to get comfortable recommending it to patients.



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