India, May 15 -- Researchers atNational Institute of Technology (NIT) Rourkela, Odisha, have developed an effective upgrade toElectrocardiography (ECG),one of the most commonly used techniques to monitor heart activity.

This new system helps in easily detecting subtle electrical signals from the upper chambers of the heart, which are often too indistinct to be seen clearly in regular ECGs. These signals play a key role in identifying abnormal heart rhythms that can lead to serious conditions such as atrial fibrillation which can further lead to stroke.

Irregular heart rhythms, or arrhythmias, are responsible for a large number ofcardiac-related deaths around the world. Irregular heart rhythm in the heart's upper chambers, known as atria...