BIẾN ĐỔI PHÂN SUẤT TỐNG MÁU VÀ SỨC CĂNG DỌC TOÀN BỘ THẤT TRÁI TRÊN SIÊU ÂM ĐÁNH DẤU MÔ CƠ TIM Ở NGƯỜI BỆNH NHỒI MÁU CƠ TIM CẤP TRƯỚC VÀ SAU CAN THIỆP ĐỘNG MẠCH VÀNH QUA DA

Abstract

Objective: Evaluation of changes in left ventricular ejection fraction (LVEF) and left ventricular global longitudinal strain (GLS) by speckle tracking echocardiography in patients with  acute myocardial infarction (MI) before and after percutaneous coronary intervention (PCI). Subjects and methods: This was a prospective study, single-center, consecutive enrolling 60 patients with acute MI undergoing PCI at the Department of Cardiovascular Intervention, Military Hospital 103, from May 2021 to July 2022. Results: Following PCI, LVEF was increased compared to before intervention (52.3 ± 12.0 vs 49.5 ± 12.2%, p < 0.05). After PCI, GLS was also higher than before intervention (-13,2 ± 3,6 vs -12.5 ± 3.6%, p < 0.05). In the heart rate <100 Beats per minute (BPM) group, LVEF, and GLS improved compared to prior intervention (LVEF: 54.2 ± 11.4 vs 51.0 ± 11.2%, GLS: -13, 6 ± 4.0 vs -12.9 ± 3.6%, p < 0.05). In the group with heart rate ≥100 BPM, LVEF and GLS after intervention were not changed from before (43.6 ± 11.1 vs. 42.3 ± 14.5%, p > 0.05, 11.1 ± 2.8% vs. -10.6 ± 3.3%, p > 0.05, respectively). Conclusions: After percutaneous coronary intervention, LVEF increased and GLS improved compared to before. In the heart rate <100 bpm group, LVEF and GLS improved after intervention compared to before. In the heart rate ≥100 bpm group, there was no difference between LVEF and GLS before and after intervention.