A new study shows that the sinoatrial node (SAN) -- a small but powerful structure in the human heart that serves as its natural pacemaker and initiates every normal heartbeat -- runs on different ...

and how this common cardiac arrhythmia—or abnormal heart rhythm— is treated. Atrial fibrillation can raise your risk of stroke and heart failure. AFib occurs when the electrical signals in your heart ...

can reveal whether you have high blood sugar, high cholesterol, or other heart disease risk factors. An electrocardiogram (ECG) can detect irregular cardiac rhythms or damage to the heart muscle.

Department of Cardiology, Alfred Health, Melbourne, Australia (W.C.Z., S.N., L.B.H., J.E.B., J.A.S., D.S., D.M.K., W.C.). Department of Cardiology, Western Health ...

On the hospital’s monitor, you see a normal sinus rhythm without PVCs. After completing the appropriate paperwork and information regarding the patient, you and your partner attach your cardiac ...