Atrial fibrillation in the elderly and long-livers: a retrospective analysis of the clinical profile of patients using artificial intelligence

Abstract

Aim. Retrospective analysis of the clinical characteristics of elderly patients with atrial fibrillation (AF) and long-livers in individual subjects of the Russian Federation using artificial intelligence.Material and methods. The information was obtained from the Webiomed predictive analytics platform. The main database included 144431 patients with AF who received care in medical organizations in 6 constituent entities of the Russian Federation in the period 2016-2019. Of these, 56830 (39,3%) persons were aged ≥75 years: 47595 aged 75-89 years, 9235 aged ≥90 years.Results. Patients with AF aged ≥75 years compared with persons aged 18-74 years were characterized by a significantly higher incidence of hypertension, type 2 diabetes, estimated glomerular filtration rate <60 ml/min/1,73 m2, heart failure and peripheral atherosclerosis, thromboembolic (TEE), atherothrombotic and hemorrhagic events. The prescription rate of anticoagulant therapy (ACT) was 29,6% and was lower (p<0,001) compared with a subgroup of people with AF aged 1874 years with a high risk of TEE (41,2%). Among patients with AF aged ≥75 years, in 9,4% of cases, no additional (in relation to age and sex) CHA2DS2-VASc points were found, and in 1/3 of individuals there was only one additional points. With an increase CHA2DS2-VASc score in these patients, the ACT prescription rate increased from 13 to 55,5%. The prescription rate of acetylsalicylic acid was 12,8%. Only 33% of people with AF aged ≥75 years who had an ischemic stroke were prescribed ACT.Conclusion. The retrospective analysis indicates a high proportion of people aged ≥75 years in the structure of all patients with AF. This group is characterized by a significant comorbidity, a high TEE risk, hemorrhagic and atherothrombotic events. At the same time, the ACT prescription rate as of 2016-2019 in individual subjects of the Russian Federation did not meet the requirements of the clinical guidelines.