TỈ LỆ THIẾU CƠ THEO PHƯƠNG PHÁP DEXA Ở BỆNH NHÂN CAO TUỔI CÓ SUY TIM MẠN

Abstract

Background: Sarcopenia is common in elderly patients with chronic heart failure, driven by overlapping pathophysiological mechanisms and age-related musculoskeletal decline. It contributes to reduced physical function and increased risks of adverse outcomes. Accurate assessment using dual-energy X-ray absorptiometry (DEXA) is essential for optimizing comprehensive care in this population.Objective: To investigate the prevalence and associated factors of sarcopenia in elderly outpatients with chronic heart failure. Methods: A cross-sectional study was conducted among elderly outpatients with chronic heart failure at Military Hospital 175 from October 2024 to July 2025. Sarcopenia was diagnosed using dual-energy X-ray absorptiometry (DEXA) based on the Asian Working Group for Sarcopenia (AWGS) 2019 criteria. Logistic regression was used to identify associated factors. Results: Among 244 patients (mean age 68.9 ± 6.7 years; 62.7% male), sarcopenia was present in 126 cases (52.8%). Significant factors associated with sarcopenia included age ≥ 70 years (OR = 2.03; 95% CI: 1.08–3.81; p = 0.027), underweight or normal body weight (OR = 4.18; 95% CI: 2.24–7.82; p < 0.001), depression (OR = 3.52; 95% CI: 1.58–7.82; p = 0.002), and use of aldosterone antagonists (OR = 2.05; 95% CI: 1.14–3.66; p = 0.016). Conclusion: In elderly outpatients with chronic heart failure, the prevalence of sarcopenia was 52.8%. Older age, lower body mass index, depression, and aldosterone antagonist use are independently associated with increased risk of sarcopenia.