refers to the normal heart beat originating from the sinoatrial node. This is manifested as an upright P wave in lead II of the ECG. Sinus bradycardia occurs when the heart rate is less than 60 ...

ECG Challenge: Rushing to the ED With Chest Pain A 67-year-old man with no cardiac history has a sudden bout of chest pain, but his labs come back normal. What does his ECG show? Clinical Case ...

there are a variety of atypical ECG patterns, often called 'normal variants', that can occur in perfectly normal individuals. SCD is most often due to an extremely rapid and uncoordinated cardiac ...

Unlike other genetic syndromes that results in sudden cardiac death, the QT interval is normal in Brugada syndrome. There are three types of ECG findings in Brugada syndrome patient. This ECG ...

A normal T wave is asymmetric, with a slower upstroke and faster downstroke. In contrast, these T waves are symmetric. This is the first ECG change of an acute transmural ST segment elevation ...