Management of patients with infective endocarditis: current state-of-art. Part I: clinical picture, diagnosis, differential diagnosis

   The problem of infective endocarditis (IE) remains relevant due to the high mortality rate and the development of severe complications. IE is a polyetiological disease, the occurrence and development of which can be caused by an extremely extensive list of pathogens, which is replenished almost annually. The pronounced clinical polymorphism of IE determines the importance of its early diagnosis, including the use of new medical technologies. Timely informing physicians about the modern principles of monitoring of patients with IE is of great practical importance. Part I of the article describes the clinical features, basic principles of diagnosis and differential diagnosis of IE, taking into account the recommendations of the European Society of Cardiology 2023.