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CLINICAL CHARACTERISTICS, TREATMENT, AND RISK FACTORS OF OUTPATIENTS WITH ATRIAL FIBRILLATION BASED ON THE CHA2DS2-VA SCORE AT THE CARDIOLOGY CLINIC OF GIA DINH PEOPLE’S HOSPITAL
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Abstract
Introduction: Atrial fibrillation (AF) is a common arrhythmia that increases with age and accounts for 20% of stroke cases. It elevates stroke risk by 5 to 20 times, depending on the associated comorbidities. Comprehensive evaluation of AF patients using the new CHA2DS2-VA score and associated comorbidities is crucial for stroke prevention and reducing cardiovascular events. Objectives: To determine the clinical and laboratory characteristics of AF patients based on the CHA2DS2-VA score, bleeding risk, and anticoagulants used at the Cardiology Clinic of Gia Dinh People’s Hospital. Methods: This is a cross-sectional, prospective survey with continuous sampling, including cases of AF without moderate-to-severe mitral valve stenosis or mechanical heart valves, conducted from October 2024 to December 2024 at the Cardiology Clinic of Gia Dinh People’s Hospital. Results: A total of 237 AF patients were included, with an average age of 69.9 years, and 55.7% were female. Paroxysmal AF accounted for 18%, persistent/long-standing persistent AF for 14.6%, and permanent AF for 67.4%. The duration of AF was <1 year, 1–5 years, 5–10 years, and >10 years in 24.9%, 44.3%, 17.3%, and 13.5% of patients, respectively. Left ventricular ejection fraction (EF) >50% was observed in 79% of patients, and 12% had undergone coronary revascularization. Chronic kidney disease (CKD) stages 2 and 3 were found in 64% and 33% of patients, respectively. Based on the CHA2DS2-VA score, AF patients with scores of 1, 2, 3, and 4 accounted for 13.5%, 30.8%, 22.4%, and 16.0%, respectively. Direct oral anticoagulants (DOACs) were used by 87% of patients. Bleeding risk stratification using the HAS-BLED score indicated that 72.6% of patients were at low risk, 22.4% at moderate risk, and 5% at high risk. Conclusions: Most AF patients had permanent AF and had experienced AF for more than one year. The average thromboembolic risk score based on the CHA2DS2-VA score was 3.1, and the average bleeding risk score based on HAS-BLED was 1.13. Direct oral anticoagulants were used by 87% of AF patients.
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Keywords
Atrial Fibrillatio, CHA2DS2-VA, HASBLED, anticoagulant
References
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