…Right ventricular infarction. Ebstein's anomaly (Figure 1). Carcinoid heart disease. Endocarditis (common in intravenous drug addicts). Myxomatous degeneration. Rheumatic heart disease. Dilatation of the…

…either LCX or the right coronary artery (RCA). For details, refer to chapter The Coronary Arteries. Mitral valve disease A wide range of conditions may…

…The hallmark of both RBBB and LBBB is the QRS duration which is by definition 120 ms or longer. ECG criteria for right bundle branch…

…in persons who are otherwise healthy. The majority of those with LAFB, however, have significant heart disease. Myocardial infarction, coronary artery disease, left ventricular hypertrophy…

…III and aVF (with QRS duration <0.12 seconds), provided that other causes of right axis deviation have been excluded. Causes of left axis deviation…

…III and aVF (with QRS duration <0.12 seconds), provided that other causes of right axis deviation have been excluded. Causes of left axis deviation…

…duration of 120 ms (0.12 s) or more is required to diagnose a complete left bundle branch block . In addition to prolonged QRS duration…

…These require a QRS duration exceeding 140 msec in males and 130 msec in females , along with slurring or notching of the mid QRS in…

…to right shunt, tamponade, or sudden loss of effective cardiac output. Their recognition is essential because treatment often requires urgent surgical or transcatheter intervention, with…

…or the needle from a pericardiocentesis set), 10 mL and 20 mL syringes, a three way tap. A Seldinger set with a guidewire, a dilator…