Anticoagulación oral y riesgo de sangrado en pacientes con fibrilación auricular no valvular del Hospital Militar Central

Abstract

ABSTRACT Atrial fibrillation is the most frequent arrhythmia and can cause stroke. The objective of this study was to determine the type of oral anticoagulant received and the risk of bleeding in patients with non-valvular atrial fibrillation of the Central Military Hospital. The descriptive, retrospective cross-sectional study, included adult patients with a diagnosis of non-valvular atrial fibrillation from the Central Military Hospital from January 2015 to August 2018. Demographic variables, diagnosis of valvular and non-valvular atrial fibrillation, type of oral anticoagulation received, stroke scale (CHA2DS2-VASc), hemorrhage (HAS-BLED) scale, control of anticoagulation with the INR and adherence to anticoagulant treatment were determined. Two hundred and twenty patients with atrial fibrillation were included, 60% presented non-valvular atrial fibrillation, mean age of 71±4.6 years and 57.8% were men. Seventy nine percent of the patients received oral anticoagulation, of which 80% received anti-vitamin K anticoagulant. The average point on the CHA2DS2-VASc scale was 3.5 point and on the HAS-BLED scale the average point obtained was of 1.9 while the most common risk factors for bleeding were AHT and age over 65 years. In this study, it was found that the majority of patients with FANV was anticoagulated, had a high adherence to treatment, and good control of ancoagulation. The most widely used oral anticoagulant was anti vitamin K, intermediate risk for bleeding and risk factors for bleeding, the most common was arterial hypertension and age>65 years.