The correct diagnosis is sinus tachycardia, left atrial abnormality, and QRS (electrical) alternans, right axis caused by left posterior fascicular block (Figure 2). The rhythm is regular at a rate of ...

As a whole, cocaine-associated electrocardiographic abnormalities are well described in the literature (primarily in the form of observational studies, small controlled studies and case reports). Upon ...

Investigators from Ghana evaluated cardiac abnormalities among persons living with HIV who were or were not on highly active antiretroviral treatment. Previous results have been mixed on the utility ...

Narrow-complex tachyarrhythmias are rapid heart rhythms originating in the upper heart chambers, characterized by a QRS duration of less than 120 milliseconds on an EKG. These arrhythmias can be ...

A 62 year old male with a history of hypertension presents to his primary care physician for a routine check-up. His blood pressure is 220/110. He admits to not taking his blood pressure medications ...

A RECENT review of experience with the syndrome of short PR interval and abnormal ventricular complex occurring in otherwise healthy persons prone to paroxysmal tachycardia disclosed that a third of ...