Institute for Surgical Research and Department of Cardiology, Oslo University Hospital and University of Oslo, Rikshospitalet, N-0027 Oslo, Norway.
Department of Cardiology, CHU Rennes and Inserm, LTSI, University of Rennes, Rennes, France.
Eur Heart J Cardiovasc Imaging. 2021 Feb 22;22(3):259-261. doi: 10.1093/ehjci/jeaa301.
Myocardial work is calculated from non-invasive left ventricular pressure and strain by speckle tracking echocardiography. Myocardial work provides diagnostic information beyond what is achieved from left ventricular ejection fraction and strain since it incorporates afterload, and provides a measure of myocardial efficiency. The method can be used to calculate global as well as segmental work. The work method was recently shown to be of clinical value in selection of patients for cardiac resynchronization therapy. Several other clinical applications are currently tested.
心肌做功可通过斑点追踪超声心动图从无创性左心室压力和应变中计算得出。心肌做功提供了超越左心室射血分数和应变所能提供的诊断信息，因为它包含了后负荷，并提供了心肌效率的衡量标准。该方法可用于计算整体和节段性工作。该方法最近在选择心脏再同步治疗患者方面显示出了临床价值。目前正在测试其他一些临床应用。
