利用超声心动图特定层心肌应变成像评估卵巢早衰患者的左心室心肌收缩功能障碍

IF 3.2 Q2 CARDIAC & CARDIOVASCULAR SYSTEMS

Echo Research and Practice Pub Date : 2024-09-02 DOI:10.1186/s44156-024-00056-x

Yu-Lin Wang, Li-Xue Yin, Mei Li

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引用次数: 0

摘要

背景：由于缺乏雌激素，卵巢早衰（POI）是缺血性心脏病和整体心血管疾病的独立危险因素。本研究旨在应用特异层心肌应变对早发性卵巢功能不全患者亚临床左心室心肌收缩功能变化进行早期定量评估：研究对象包括 48 名新确诊、未经治疗的 POI 患者（POI 组）和 50 名年龄、身高和体重相匹配的健康女性受试者（对照组）。采用标准经胸超声心动图测量常规参数和各层特异性应变参数。各层特异性应变参数包括心内膜下全层纵向应变（GLSendo）、中层心肌全层纵向应变（GLSmid）、心外膜下全层纵向应变（GLSepi）、心内膜下全层环向应变（GCSendo）、中层心肌全层环向应变（GCSmid）和心外膜下全层环向应变（GCSepi）：两组患者在年龄、体重指数（BMI）、血压或左心室射血分数（LVEF）方面无明显差异。POI 组的舒张末期室间隔厚度（IVST）更大（8.29 ± 1.32 vs. 7.66 ± 0.82，P = 0.008），POI 组的 E、E/A 和侧向 e' 更低（均为 P 结论：POI 组的左心室射血分数（LVEF）和舒张末期室间隔厚度（IVST）均高于 POI 组（8.29 ± 1.32 vs. 7.66 ± 0.82，P = 0.008）：LVEF 正常的 POI 患者可能存在亚临床左心室心肌收缩功能障碍。超声心动图心肌层特异性应变能更灵敏地检测出 POI 患者亚临床左室收缩功能损害。

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Assessment of left ventricular myocardial systolic dysfunction in premature ovarian insufficiency patients using echocardiographic layer-specific myocardial strain imaging.

Background: Due to the lack of oestrogen, premature ovarian insufficiency (POI) is an independent risk factor for ischaemic heart disease and overall cardiovascular disease. This study aimed to apply layer-specific myocardial strain for early quantitative evaluation of subclinical left ventricular myocardial systolic function changes in patients with POI.

Methods: Forty-eight newly diagnosed, untreated patients with POI (POI group) and fifty healthy female subjects matched for age, height and weight (control group) were enrolled. Standard transthoracic echocardiography was used to measure conventional parameters and layer-specific strain parameters.The layer-specific strain parameters included subendomyocardial global longitudinal strain (GLSendo), mid-layer myocardial global longitudinal strain (GLSmid), subepimyocardial global longitudinal strain (GLSepi), subendomyocardial global circumferential strain (GCSendo), mid-layer myocardial global circumferential strain (GCSmid), and subepimyocardial global circumferential strain (GCSepi).

Results: There were no significant differences in age, body mass index (BMI), blood pressure, or left ventricular ejection fraction (LVEF) between the two groups. The end-diastolic interventricular septal thickness (IVST) was greater in the POI group (8.29 ± 1.32 vs. 7.66 ± 0.82, P = 0.008), and the POI group had lower E, E/A, and lateral e' (all P < 0.05). As for systolic functions,the POI group had lower GLSendo, GLSmid, GLSepi, GCSendo, GCSmid, and GCSepi (all P < 0.05).The intraobserver and interobserver coefficients of GLSendo, GLSmid, GLSepi, GCSendo, GCSmid, and GCSepi were greater than 0.900.

Conclusions: POI patients with normal LVEF may suffer from subclinical left ventricular myocardial systolic dysfunction. Echocardiography of layer-specific myocardial strain could more sensitively detect subclinical impairment of left ventricular systolic function in POI patients.

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来源期刊

Echo Research and Practice CARDIAC & CARDIOVASCULAR SYSTEMS-

CiteScore

6.70

自引率

12.70%

发文量

审稿时长

8 weeks

期刊介绍： Echo Research and Practice aims to be the premier international journal for physicians, sonographers, nurses and other allied health professionals practising echocardiography and other cardiac imaging modalities. This open-access journal publishes quality clinical and basic research, reviews, videos, education materials and selected high-interest case reports and videos across all echocardiography modalities and disciplines, including paediatrics, anaesthetics, general practice, acute medicine and intensive care. Multi-modality studies primarily featuring the use of cardiac ultrasound in clinical practice, in association with Cardiac Computed Tomography, Cardiovascular Magnetic Resonance or Nuclear Cardiology are of interest. Topics include, but are not limited to: 2D echocardiography 3D echocardiography Comparative imaging techniques – CCT, CMR and Nuclear Cardiology Congenital heart disease, including foetal echocardiography Contrast echocardiography Critical care echocardiography Deformation imaging Doppler echocardiography Interventional echocardiography Intracardiac echocardiography Intraoperative echocardiography Prosthetic valves Stress echocardiography Technical innovations Transoesophageal echocardiography Valve disease.