The book is devoted to methods of active prevention of the development of urgent cardiological conditions in coronary heart disease, arterial hypertension, heart failure, heart rhythm and conduction disorders, deep vein thrombosis. For urgent cardiac conditions that have already arisen, available recommendations for the provision of emergency medical care and methods of emergency prevention of the development of irreversible complications such as death or infarction (myocardium, brain, lung) are proposed. For doctors of medical specialties.