Animated ECG tutorial: Basic principles of ECG analysis , ECG GRID ,COMPLEXES AND INTERVALS

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ECG tutorial: Basic principles of ECG analysis , ECG GRID ,COMPLEXES AND INTERVALS

INTRODUCTION — Even though there continues to be new technologies developed for the diagnostic evaluation of patients with cardiovascular disease, the electrocardiogram (ECG) retains its central role. The ECG is the most important test for interpretation of the cardiac rhythm, conduction system abnormalities, and the detection of myocardial ischemia. The ECG is also of great value in the evaluation of other types of cardiac abnormalities including valvular heart disease, cardiomyopathy, pericarditis, and hypertensive disease. Finally, the ECG can be used to monitor drug treatment (specifically antiarrhythmic therapy) and to detect metabolic disturbances.

A systematic approach to interpretation of the ECG is imperative in order to avoid overlooking any abnormalities. Pattern recognition is helpful but it is important to review all aspects of the ECG to not miss something. This animated review provides the framework for a systematic analysis of the ECG.