A review of alternative measurements in strain imaging for ventricular arrhythmia prediction.

Q4 Dentistry
Spas Kitov, Lyudmila Vladimirova-Kitova
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引用次数: 0

Abstract

Global longitudinal strain has been established as a reliable tool to assess global left ventricular function and a marker of subclinical left ventricular dysfunction unrecognized by the ejection fraction. On the other hand, ventricular arrhythmias are the most common cause of sudden cardiac death. Their early detection is a challenge. Possible prognostic markers for the risk of ventricular arrhythmias are discussed in the literature - electrocardiographic, cardiac magnetic resonance, computed tomography, radionuclide imaging, and markers from new echocardiographic techniques. Of the latter, at this stage of knowledge, several markers have been discussed as informative for predicting ventricular arrhythmias - global longitudinal strain, radial strain and mechanical dispersion, and most recently, myocardial work. As far as we are informed, global longitudinal strain is particularly useful in patients with normal echocardiographic parameters such as left ventricular ejection fraction, left atrial diameter, left ventricular wall thickness, and aortic root. The relationship between mechanical dispersion and ventricular arrhythmias has been widely studied. The relationship has been studied more in some patient populations - heart failure, ischemic heart disease, long QT syndrome and arrhythmogenic cardiomyopathy, congenital heart disease. The role of mechanical dispersion as a predictor of ventricular arrhythmias in metabolic syndrome is scarce.

应变成像用于室性心律失常预测的替代测量方法综述。
整体纵向应变是评估整体左心室功能的可靠工具,也是射血分数无法识别的亚临床左心室功能障碍的标志物。另一方面,室性心律失常是心脏性猝死最常见的原因。早期发现心律失常是一项挑战。文献中讨论了室性心律失常风险的可能预后标志物--心电图、心脏磁共振、计算机断层扫描、放射性核素成像以及新型超声心动图技术的标志物。在后者中,在现阶段的知识中,有几种标记物被认为对预测室性心律失常有参考价值--整体纵向应变、径向应变和机械弥散,以及最近的心肌功。据我们所知,对于左室射血分数、左房直径、左室壁厚度和主动脉根部等超声心动图参数正常的患者来说,整体纵向应变尤其有用。机械弥散与室性心律失常之间的关系已被广泛研究。在一些患者人群中,如心力衰竭、缺血性心脏病、长 QT 综合征和心律失常性心肌病、先天性心脏病等,对二者关系的研究较多。机械弥散作为代谢综合征室性心律失常预测因子的作用还很少。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Folia medica
Folia medica Medicine-Medicine (all)
CiteScore
1.00
自引率
0.00%
发文量
121
审稿时长
5 weeks
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