or decompensated heart failure. However, P wave alternans is not seen in these cases of electrical alternans and is specific to a large effusion or tamponade. Philip Podrid, MD, is an ...

pathological Q-waves, left axis deviation and conduction delays and findings suggestive or diagnostic of primary electrical diseases such as long QT syndrome and Wolff-Parkinson-White syndrome. The ...

Furthermore, the ECG software double-counted the QRS complexes, as it misleadingly counted T waves too (151 bpm; red box/arrow). Pulse oximetry revealed the correct heart rate of 76 bpm.