Figure 1: Mechanisms of spreading depolarization in the neuron. Figure 2: Normal (spreading hyperemia) and inverse (spreading ischemia) function of the neurovascular unit in response to spreading ...

Brugada syndrome is an inherited disease responsible for a large number of sudden deaths in young people without structural heart anomalies The pathophysiology of Brugada syndrome is unclear; ...

Sinus tachycardia at 150 beats/min is present. The downsloping PR segment and upsloping ST segment make a smooth scooped-out curvature and are typical of Ta wave. Just as with the ventricular ...

The QT interval is the time from the beginning of the QRS complex (ventricular depolarization) to the end of the T wave (ventricular repolarization). The normal QT interval is controversial and ...

For more than 60 years, physicians have been fascinated by a peculiar electrocardiographic pattern called “early repolarization.” 1 When Google is queried, more than 1 million hits turn up on this ...

Oakland, CA - Chronic ST elevation caused by early repolarization is especially prevalent in young black men engaging in vigorous exercise but has an essentially benign prognosis, according to a study ...

Early repolarization, which is characterized by an elevation of the QRS–ST junction (J point) in leads other than V 1 through V 3 on 12-lead electrocardiography, has been associated with vulnerability ...

An arrhythmia (also termed cardiac dysrhythmia) is described as an irregular heartbeat caused by aberrant electrical activity in the heart. There are multiple categories of arrhythmia, each of which ...