Atrial fibrillation is one of the most common reasons for visiting a doctor and subsequent hospitalization, which can lead to death. Experienced doctors A.L. Vertkin and co-authors clearly reveal all aspects of clinical practice - diagnosis, including indications for hospitalization; optimal treatment and prevention of complications; follow-up of the patient and laboratory monitoring of his condition. “Atrial Fibrillation” is an indispensable manual in the everyday medical practice of clinic physicians, cardiologists, neurologists, emergency doctors and other specialists working on outpatient and inpatient basis.