ECG Challenge: Tennis Player With an Irregular Pulse An active 45-year-old visits his physician for a routine exam and is found to have an irregular pulse. What does an ECG reveal in this ...

ECG Challenge: A Post–Cardiac Arrest Pattern As part of his recovery from cardiac arrest, a 69-year-old man is put under a cooling blanket. See if you can spot a signature wave on his ECG.

A team of researchers from Tsinghua University and Beijing Tsinghua Changgung Hospital has introduced a cutting-edge method to improve the interpretation of electrocardiogram (ECG) data.