…or anatomical defects in the components of the intraventricular conduction system. Because the conduction system is crucial for rapid and synchronized activation of the ventricles…

…4:704–710. Eschalier R et al. Heart Rhythm. 2015 May;12(5):1071 9. Nonspecific intraventricular conduction delay: Definitions, prognosis, and implications for cardiac…

…more difficult, which explains why individuals with bundle branch blocks are treated sub optimally (in terms of evidence based medications and use of PCI), as…

…50 beats per minute in the first 4 to 6 hours after an acute infarction—patients may develop hypotension and signs of end organ hypoperfusion…

…originates in the atria it will pass through the bundle of His and therefore produce a normal QRS complex (provided that intraventricular conduction is normal)…

…intraventricular conduction is normal). If the P wave is visible, it is retrograde in lead II (because of the reversed direction of atrial activation) and…

…atrial fibrillation) if the block in the AV node is high grade. Causes of tachyarrhythmia with narrow QRS complexes (QRS duration < 0.12 s…

…high suspicion of intermittent infrahisian block should be maintained, particularly in older patients and those exhibiting a bundle branch block (BBB) or an intraventricular conduction…

…the chamber and this leads to dilatation. The most common cause is valvular regurgitation (insufficiency). For example, aortic regurgitation causes the flow of blood from…

…impulse reaches the atrioventricular node when there are two pathways, one being refractory and the other capable of conducting the impulse, re entry may arise…