Around 22 million people are at risk of sudden heart failure at any one time around the world. Lots of lives can often be saved if acute care and cardiac surgery are carried out within the so-called golden hour. Scientists from India have developed a device that measures electrical signals from the heart, analyses them to produce an electrocardiogram (ECG) and sends an alert together with the ECG by cell phone text message. The prototype Bluetooth heart monitor records periodically an electrocardiogram (ECG) and transmits the information via radio frequency signals to the patient's cell phone. The modified phone has an added analyzer circuit that checks the ECG signal for signs of imminent cardiac failure.

The device could give patients who have already had one heart attack a much greater chance of receiving life-saving treatment within the golden hour period. The researchers are now working on how to enable global-positioning system, GPS, in the modified cell phone, so that the medical center can more quickly pinpoint the patient.
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