Depolarization of the Ventricles
2.5 Depolarization of the Ventricles The depolarization of the ventricles is represented by a QRS complex and is indicated by a solid arrow (). Ventricular ectopics are represented by a…
Impulse Formation in the Sinus Node
2.2 Impulse Formation in the Sinus Node The formation of the electrical impulse in the sinus node is necessary to give rise to so-called sinus rhythm. Formation of an impulse…
Right Ventricular Hypertrophy
5.5 Right Ventricular Hypertrophy Right Ventricular Hypertrophy Mechanism: Hypertrophy of the right ventricular musculature as a consequence of systolic or diastolic overload ECG characteristics: Often right axis P pulmonale (P…
Mitral Valve Prolapse Syndrome
5.3 Mitral Valve Prolapse Syndrome Mitral Valve Prolapse Syndrome Definition: Symptoms that are attributed to mitral valve anomaly or to neuroendocrine dysfunction, which cannot be solely explained by mitral valve…
Depolarization of the Atria (P Wave)
2.3 Depolarization of the Atria (P Wave) The first electrical activity conspicuous in sinus rhythm is depolarization of the atria; a P wave occurs. The beginning of the P wave…
Conduction of the AV Node
2.4 Conduction of the AV Node Following successful atrial depolarization, the electrical impulse is further conducted via the AV node, the bundle of His and the bundle branches. The individual…
The Isthmus Region
1.9 The Isthmus Region Size/form: Variable expansion of the area Location: Between the tricuspid valve, inferior vena cava, and the opening of the coronary sinus
Basic Concepts
2.1 Basic Concepts The conduction diagram represents a simplified projection of impulse conduction at the various anatomical levels of the heart on a time axis. Using typical ECG recordings a…
The Fast Pathway Region
1.8 The Fast Pathway Region Size/form: Variable expansion of the fibers Location: In the region of the intraatrial septum anterosuperior to the KOCH triangle
The Slow Pathway Region
1.7 The Slow Pathway Region Size/form: Variable expansion of the fibers Location: Between the opening of the coronary sinus and the compact AV node (posteroinferior to the compact AV node)
