…of the conduction system and acute myocardial infarction (particularly anterior STEMI). Hence, an acute myocardial infarction may actually result in LBBB which then masks the…

…The anterior fascicle is most likely to be defect because it is most sensitive to myocardial ischemia. Note that isolated fascicular blocks are uncommon in…

…of the cases. As compared with the right ventricle, the left ventricle contracts against much greater resistance (i.e. the pressure in the systemic circulation…

…in flow heterogeneity and perfusion defects in areas supplied by the disease artery. Thus, vasodilators replicate the effects of exercise on coronary arteries, without the…

…al. demonstrated the following, among patients with known coronary artery disease: Achieving 85% of age adjusted MHR resulted in myocardial perfusion defects in all patients,…

…to V5 and then diminishes again in V6. Refer to Figure 1 . Abnormal R wave progression implies that the gradual increase from V1 to V5…

…of increased automaticity and diminished impulse conduction . Explanation follows: Increased automaticity occurs both in the atria and the ventricles. This initially manifests with premature beats …

…particularly in individuals younger than 35 years during or after vigorous exercise. Anomalous origin of the left coronary artery is less frequent but is considered…

Conduction defects ECG Second degree AV block: ECG criteria, clinical characteristics & management In this chapter, the focus will be on second degree atrioventricular (AV) block…

Conduction defects ECG Right bundle branch block (RBBB) Right bundle branch block (RBBB) is due to an anatomical or functional dysfunction in the right bundle…