Add Yahoo as a preferred source to see more of our stories on Google. Electrocardiograms, or ECGs, record the electrical activity of your heart. Randy Faris/The Image Bank via Getty Images Your ...

Pulseless electrical activity (PEA) is an especially serious heart arrhythmia related to weak or undetectable electrical activity. PEA can be a precursor to sudden cardiac death, so its symptoms ...

Electrophysiology (EP) procedures are crucial in diagnosing and treating various heart rhythm disorders. They involve a doctor placing thin catheters into the heart to assess its electrical activity.

Researchers have developed a non-invasive, reusable 'ECG vest' that takes high-resolution images of the heart's electrical activity in five minutes. Combining its data with cardiac MRI scans can ...

Bay Area scientists have captured the real-time electrical activity of a beating heart, using a sheet of graphene to record an optical image -- almost like a video camera -- of the faint electric ...

Irregular heartbeat, or arrhythmia, is a common occurrence with over 3 million cases per year in the United States alone. Most of the time, an arrhythmia is harmless and happens in those free of heart ...

Q: Even though my doctor told me I am pretty healthy, she ordered an electrocardiogram (ECG) to be done right in her office. Besides a heart attack, what else can ECGs show? A: Cardiac (heart) cells ...

PHILADELPHIA – A team of cardiologists, materials scientists, and bioengineers have created and tested a new type of implantable device for measuring the heart's electrical output that they say is a ...

However, at present we only have one option when it comes to evaluate how severely damaged a fetus's heart conduction system actually is -- namely doing an ultrasound scan. This method is encumbered ...

Scientists today track electrical signals and voltage changes in neurons and muscle cells by labeling individual cells or probing with electrodes. Scientists have now developed a new type of sensor ...