VPDs with very short coupling intervals developing during an acute stage of myocardial infarction would predict the development of early cycled reentry, potentially culminating in VF, and requires ...

A 76-year-old woman presents with a persistently rapid heart rate that she attributes to her pacemaker. What does the ECG show?

The electrocardiographic findings associated with cocaine use in humans are highly varied. Much of the literature to date consists of observational studies, small controlled studies and case ...

His ECG (which tracks heart activity) didn’t look 100 per cent normal but was not concerning and his blood tests were fine. After examining him, and from his description of the chest pain ...

Two frequent problems that may prevent accurate estimation of the atrial rate are atrial event undercounting because of prolonged or fixed atrial blanking periods and atrial event overcounting because ...