Description: 1: The Normal ECG. What is an Electrocardiogram? ECG Leads. Analysis of the Different Elements in the Electrocardiogram. The Electrical Axis. Determination of the Electrical Axis. The Significance of the Axis. 2: The Pathological ECG. Electrical Alterations in Hypertrophy of Muscle or Enlargement of the Chambers. The Atrial Hypertrophies. The Ventricular Hypertrophies. Electrical Abnormalities in Disease of the Coronary Circulation. Myocardial Infarction. Schematic Representation of the Evolution of the Electrical Changes in Myocardial Infarction. ECG Localization of Infarctions. Acute and Chronic Coronary Insufficiency. Electrical Disturbances in the Disorders of Conduction and ACtivation. The Pathway of Depolarization in the Cardiac Muscle. At the Level of the Sino-Atrial (SA) Node. Ectopic Rhythms at the Level of the Atrial Myocardium. Ectopic Rhythms at the Level of the Atrio-Ventricular Junctions (ie the Low Right Atrium or the Atrio-Ventricular Node). Escape Rhythms at the Level of the Atrio-Ventricular Node. Conduction Disturbance at the Level of the His Bundle or the Atrio-Ventricular Node. At the Level of the Branches of the Bundle of His, ie Bundle Branch Block. Ventricular Pre-Excitation. At the Level of the Ventricular Myocardium. Miscellaneous Abnormalities (Pericardial, Metabolic, Endocrine and Drug-Induced). Bibliography.

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