NGHIÊN CỨU SỰ THAY ĐỔI CHỈ SỐ CĂNG DỌC THẤT TRÁI BẰNG SIÊU ÂM ĐÁNH DẤU MÔ CƠ TIM Ở BỆNH NHÂN HỘI CHỨNG VÀNH MẠN CÓ CAN THIỆP MẠCH VÀNH QUA DA

Abstract

Objective: To evaluate changes in global longitudinal strain (GLS) before and after percutaneous coronary intervention (PCI) in patients with chronic coronary syndrome (CCS), and to investigate factors associated with GLS. Methods: A prospective cross-sectional study was conducted on 35 CCS patients undergoing successful PCI at Can Tho Cardiovascular Hospital from June 2023 to July 2024. GLS was measured using speckle tracking echocardiography before and after PCI. Data were analyzed using SPSS 22.0. Results: The mean age was 67.31 ± 9.99 years; 48.6% were male. Hypertension was the most common comorbidity (91.4%) and significantly associated with reduced GLS (p = 0.03). No statistically significant associations were found between GLS and diabetes, dyslipidemia, smoking, or BMI. GLS significantly improved after PCI (-16.09 ± 3.57 vs. -14.91 ± 4.20; p = 0.001), whereas left ventricular ejection fraction (LVEF) did not show a significant change (p = 0.154). Conclusion: Hypertension significantly affects GLS in CCS patients. GLS improved markedly after PCI, highlighting its value in evaluating myocardial function and treatment efficacy in this population.