…intraventricular conduction defect. In severe cases, bradycardia may progress to hemodynamic instability, presenting as shock or cardiac arrest manifesting as bradyarrhythmic arrest, asystole, or pulseless…

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…

…Ventricular fibrillation or asystole may occur early due to the massive ischemia. Complete LMCA occlusion is typically fatal within minutes, hence its designation as the…

…within the atrioventricular node, as long as it encounters excitable tissue. As it circulates within the node, it emits impulses both upwards to the atria…

…from the atria to the ventricles may be delayed or blocked. These conditions are referred to as atrioventricular (AV) blocks , subdivided according to the degree…

…direction ), from the ventricles to the atrial ( retrograde direction ) or both. Accessory pathways do not display the slow conduction that the atrioventricular node does, and…

…etc .) are warranted. Management of AV blocks aims to restore atrioventricular conduction either pharmacologically or by means of artificial pacemakers. Both methods may be used…

…or near, the atrioventricular (AV) node. The most common rhythm arising in the AV node is junctional rhythm , which may also be referred to as…

…to atrial fibrillation with wide QRS complexes due to bundle branch blocks or other conduction defects. However, in rare instances, it may be due to…

Conduction defects ECG First degree AV block: ECG criteria, clinical characteristics & management This chapter discusses first degree atrioventricular (AV) block, also referred to as 1st…