A specialist tells how to interpret subtle changes on the ECG, including those caused by two life-threatening syndromes you might otherwise miss. Reading ECGs is like learning to appreciate art—it is ...

A man in his mid-70s with a history of peripheral arterial disease, but no known heart disease, presents to the emergency department (ED) with 1 to 2 hours of nonradiating, slightly pleuritic, ...

The correct diagnosis is sinus rhythm, RBBB, and V1-V3 lead switch (Figure 2). Figure 2. Courtesy of Philip J. Podrid, MD. The rhythm is regular at a rate of 64 beats/min, and the P waves (+) are ...

The correct diagnosis is sinus tachycardia (Figure 2). The rhythm is regular at a rate of 120 beats/min, and a single premature complex is seen (^). The QRS complexes are wide (0.18 sec). An RSR' ...