How to recognize using ECG: arrhythmia, angina pectoris, myocardial infarction, ischemia, heart failure, cardiomyopathy. Decoding of formulations often found in ECG conclusions, such as sinus arrhythmia or incomplete blockade of the right leg of the Gis bundle. Convenient navigation: it is enough to find your diagnosis in the alphabetical index and refer to the corresponding chapter of the book. Healthy people and those who fear they may have abnormalities in the cardiovascular system will learn with a sigh of relief which ECG changes represent a variant of the norm and do not need treatment.