The Impact of Percutaneous Coronary Intervention on Echocardiographic Parameters in Patients with Chronic Total Occlusion of the Coronary Arteries with Diverse Left Ventricular Ejection Fractions: A Single-Center Retrospective Study
DOI:
https://doi.org/10.59958/hsf.7857Keywords:
echocardiographic parameters, chronic total occlusion, coronary arteries, left ventricular ejection fractions, PCIAbstract
Background: Chronic total occlusion (CTO) of the coronary arteries presents a significant challenge in the management of coronary artery disease, with diverse clinical manifestations and implications for patients with varying left ventricular ejection fraction (LVEF). The aim of this study is to investigate the impact of percutaneous coronary intervention (PCI) on echocardiographic parameters in patients with CTO and different LVEF, so as to optimize the care and outcomes of patients. Methods: We selected patients with CTO of coronary arteries treated at our hospital from June 2021 to June 2023 consecutively in this study. The patients were divided into two groups based on their LVEF: the low to moderate LVEF (<50%) group and the high LVEF group. Echocardiographic parameters, medication use, and demographic characteristics were assessed before and after PCI. Statistical analyses were conducted to compare changes in LVEF, left ventricular end-systolic volume (LVESV), left ventricular end-diastolic volume (LVEDV), global longitudinal strain (GLS), and left ventricular wall motion score (LVWMS) between the two LVEF groups. Results: A total of 100 patients including 67 patients with Low & Mid-range LVEF and 33 patients with High LVEF were included. Patients in the low and mid-range LVEF group demonstrated significant improvements in LVEF (p = 0.010), LVESV (p = 0.013), LVEDV (p = 0.034), GLS (p = 0.014), and LVWMS (p = 0.014) following PCI. In contrast, no significant changes in these parameters were observed in the high LVEF group after PCI. Conclusion: This study demonstrates that PCI leads to significant improvements in LVEF, LVESV, LVEDV, GLS, and LVWMS in patients with low to moderate LVEF, indicating potential benefits of revascularization in this patient subset.
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