Ischemia and Necrosis
Chapter 13Ischemia and Necrosis Concept Myocardial ischemia is defined as the sudden decrease or even stop of the flow of oxygenated blood that in normal conditions perfuse the myocardial tissue….
Characteristics of the Normal Electrocardiogram: Normal ECGWaves and Intervals
Chapter 7Characteristics of the Normal Electrocardiogram: Normal ECGWaves and Intervals A systematic and sequential approach to ECG interpretation The interpretation of an ECG should be systematically approached in a sequential…
The ECG in Different Clinical Set of Ischemic Heart Disease
Chapter 20The ECG in Different Clinical Set of Ischemic Heart Disease Introduction From exercise angina to acute coronary syndrome, and myocardial infarction Myocardial ischemia can occur through two different pathophysiological…
The Electrophysiological Basis of the ECG
Chapter 5The Electrophysiological Basis of the ECG: From Cell Electrophysiology to the Human ECG Types of cardiac cells: slow and fast response cells (Hoffman and Cranefield 1960) From an electrophysiological…
Ventricular Enlargement
Chapter 10Ventricular Enlargement Concept: preliminary considerations The electrocardiographic concept of chamber enlargement includes wall hypertrophy, chamber dilation, and a combination of the two. Anatomically, the term “ventricular hypertrophy” refers to…
Active Supraventricular Arrhythmias
Chapter 15Active Supraventricular Arrhythmias Premature supraventricular complexes Concept and mechanisms Premature supraventricular complexes are premature complexes of supraventricular origin. These include those of atrial (A‐PSVC) and atrioventricular junctional origin (J‐PSVC)….
Atrial Abnormalities
Chapter 9Atrial Abnormalities Introduction This chapter examines the electrocardiographic abnormalities seen in atrial depolarization (P wave) caused by atrial enlargement and/or atrial conduction disturbances, including the rare cases of atrial…
