Conduction defects ECG Intraventricular conduction delay (defect): constellations of bundle branch blocks and fascicular blocks (hemiblocks) This chapter discusses intraventricular conduction delays (defects), which are…

…Cardiac cell architecture In contrast to skeletal muscle, cardiac cells display a branch like morphology. As illustrated in Figure 2 all cardiac cells are connected…

Cardiology Pulmonary embolism occurs when venous thrombi embolize to the pulmonary artery or its branches. In the majority of cases, the thrombus is formed in…

…of the aortic bulb. The LMCA is short and branches into the two arteries supplying the anterior and left side of the heart, as follows:…

…of the aortic bulb. The LMCA is short and branches into the two arteries supplying the anterior and left side of the heart, as follows:…

…the ischemia/infarction. The location of the thrombus in the artery: a proximally located thrombus will cut off blood flow to more branches, and thus…

…cause transient AV blocks by affecting the AV node, bundle of His or the bundle branches. Tachycardia can cause AV blocks during or after the…

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

…bundle, which bifurcates into the left and right bundle branches. The left bundle branch further subdivides into two fascicles. From these branches and fascicles, Purkinje…

…and abnormal QRS complex on the ECG. The hallmark of right bundle branch block is QRS duration ≥0,12 seconds, large R' wave in V1…