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超声心动图综合评价老年急性心肌梗死左心室收缩功能
Authors Huang X, Liu Y, Guan B, Yang W, Sun S, Luo J, Luo Y, Cao J, Deng Y
Received 17 November 2021
Accepted for publication 25 January 2022
Published 11 February 2022 Volume 2022:15 Pages 1437—1445
DOI https://doi.org/10.2147/IJGM.S348594
Checked for plagiarism Yes
Review by Single anonymous peer review
Peer reviewer comments 2
Editor who approved publication: Dr Scott Fraser
Aim: To evaluate the left ventricular (LV) systolic function in elderly with non-ST elevation myocardial infarction (NSTEMI) and ST elevation myocardial infarction (STEMI) using real-time three-dimensional echocardiography (RT-3DE) and two-dimensional speckle tracking imaging (STI).
Methods: Forty NSTEMI and forty STEMI patients after undergoing percutaneous coronary artery intervention (PCI) were enrolled. The myocardial segments were supplied by the infarct-related artery (Myo-IRA) which were indicated by the selective coronary arteriography (SCA). The LV end-diastolic volume (LVEDV), end-systolic volume (LVESV), stroke volume (LVSV) and ejection fraction (LVEF) were acquired by 4D LV Volume Tom Tec. LV longitudinal peak systolic strain (LPSS), radial peak systolic strain (RPSS), circumferential peak systolic strain (CPSS) of Myo-IRA segments, LV rotational peak degree in the base (rot-base) and in the apex (rot-apex), and twist were acquired by strain analysis software. Forty older healthy individuals were included as normal controls.
Results: The LVEF of the NSTEMI and STEMI patients at 1 week after PCI were significantly lower (P < 0.05), then, this parameter was improved in both groups after 3 months, but was still significantly lower than that of the controls (P < 0.05). The LPSS, RPSS, CPSS of the Myo−IRA segments, rot−Base, rot−Apex and twist in both groups were significantly lower than those in the controls. The LPSS and CPSS of the Myo-IRA segments, rot−Base, rot−Apex and twist in NSTEMI patients were obviously higher than those in STEMI patients in 1 week and 3 months after PCI (P < 0.05). After 3 months, the RPSS of NSTEMI patients was improved notably and was obviously higher than that of STEMI patients (P < 0.05). All these values in STEMI and NSTEMI patients were improved after 3 months, apart from LPSS in STEMI patients (P > 0.05), but were still significantly lower than those in the controls (P < 0.05).
Conclusion: RT-3DE and STI can sensitively assess LV systolic function with different extents of transmural damage.
Keywords: echocardiography, acute myocardial infarction, left ventricular systolic function, elderly