Anatomical and Electrophysiological Bases 1.1. The Heart Walls The heart has four cavities, two atria and two ventricles, comprised mainly of contractile cells called cardiomyocytes. The electrical stimulus originating in the…
Atrial Abnormalities 5.1. Initial Considerations This concept includes atrial enlargements and atrial blocks. These entities are different, but they are frequently associated and often have a shared ECG pattern. Interatrial blocks,…
Recording Devices and Techniques 3.1. Recording Devices Until recently, recording devices were analog, and recordings were generally made on thermosensitive paper. Today we live in the digital age and devices are…
Abnormal ECG Without Apparent Heart Disease and Normal ECG in Serious Heart Disease I would like to finish this short book which deals with the bases of normal ECG and…
Section 1 Supraventricular rhythms Normal sinus rhythm Normal sinus rhythm with a normal U wave Sinus arrhythmia (irregular sinus rhythm) Sinus tachycardia Sinus bradycardia Atrial bigeminy Atrial trigeminy Ectopic atrial…
Section 10 Miscellaneous The athletic heart Acute pulmonary embolus (PE) Cardiac amyloidosis Arrhythmogenic right ventricular dysplasia (ARVD) Left ventricular aneurysm Acute pericarditis Pericardial effusion Pericardial effusion with electrical alternans Wolff-Parkinson-White…
