Commentary: An AI Stethoscope That Can Help Doctors Catch Heart Problems Early
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Doctors in London and researchers at Imperial College have built something pretty cool: an AI-powered stethoscope that checks for serious heart conditions in just 15 seconds. That means in less than the time it takes many people to tie their shoes, this tool could spot issues like heart failure, heart valve disease, or abnormal heart rhythms — problems that usually need more complex tests to catch.
In a trial involving about 12,000 patients across 200 GP surgeries, the device stood out. Patients who used it were twice as likely to be diagnosed with heart failure than those who didn’t. And when it came to abnormal rhythms (atrial fibrillation), those using the AI stethoscope were three times more likely to be caught. That’s a big leap for early detection.

How does it do that? The tool listens to heart sounds, monitors blood flow, and even takes a quick ECG — things that humans alone can miss. It then sends the data to the cloud where the AI analyzes it and returns results back to a smartphone. So doctors in local clinics can get fast feedback, without needing big hospital machines.
Of course, there are trade-offs. The researchers warn this tool should be used for people showing symptoms — not just for healthy people getting routine checks. There’s a chance of false positives (telling someone they might have a problem when they do not). But they believe the benefit — catching dangerous conditions earlier — could outweigh those risks, especially since many heart issues are only found when patients are already very sick.
For you, this means better chances of spotting heart trouble before it gets worse. If the device becomes widely available, GPs could use it to screen more people quickly, helping with early treatment and possibly saving lives. It feels like a step toward putting smart tools in the hands of more doctors — not waiting for specialists. And that’s exciting.
Credit:
Doctors develop AI stethoscope that can detect major heart conditions in 15 seconds.
By Andrew Gregory
Reference link:
https://www.theguardian.com/technology/2025/aug/30/doctors-ai-stethoscope-heart-disease-london