…long QT syndrome (LQTS) & ventricular arrhythmias (torsade de pointes) due to prolonged QT interval The QT interval is the time interval from the beginning of…

…diseases: effusion and tamponade A long series of conditions can affect the pericardium (pericardium). The most common of these are acute pericarditis (perimyocarditis), constrictive pericarditis…

…pericardium and surgical interventions are the most common causes of constrictive pericarditis. Of these three, idiopathic pericarditis is the most common cause of constrictive pericarditis…

…similar. Unfortunately, these ECGs do not show any sign of early repolarization. Note that this paper has been cited almost 500 times since publication. It…

…severity. Tricuspid stenosis is visually characterized by thickened leaflets, with reduced motion and potentially fused commisures. Continuous Doppler is used to assess the stenosis. Doppler…

…many other countries, a 2:1 block will be difficult to discern because the flutter wave may fuse with the preceding T wave. Increasing the…