An electrocardiogram is a picture of the electrical conduction of the heart. By examining changes ... Interval: The time between two specific ECG events. The intervals commonly measured on an ...

The ability to identify an abnormality on the 12-lead ECG ... conduction. The occurrence of IRBBB in an asymptomatic athlete with a negative family history and physical examination does not require ...

Atrial flutter with a slow ventricular response Right bundle branch block When atrial flutter is seen with such a slow ventricular response (in this case, 9:1 conduction), there is concern for ...

In typical heart rate regulation by the SNS, catecholamines such as adrenaline are released from autonomic nerves in the sinus node, regulating heart rate on a timescale of seconds via short-term ...

time from last drug exposure to first noted electrocardiogram abnormality or clinical evidence of suspected cardiac electrophysiologic abnormality, abnormal electrocardiogram parameters and rhythm ...

In this review, the authors discuss the role of ECG in prediction ... to arrhythmia – heart rate and its variability. Most of these predictors are not ready for prime time yet; however, further ...

The American Heart Association (AHA) recommends a directed history and physical examination. The added value of electrocardiogram (ECG) screening is debated⇓. Objective To determine the effectiveness ...