运动负荷超声心动图在射血分数保留性心力衰竭诊断评估中的研究进展

Application of Exercise Stress Echocardiography in Diagnostic Evaluation of Heart Failure with Preserved Ejection Fraction

射血分数保留性心力衰竭(HFpEF)占所有心力衰竭的一半以上,因发病率及致死率与射血分数降低性心力衰竭相近而备受关注。超声心动图是临床常用的舒张功能评价手段,诊断HFpEF的相关指标沿用至今,但因其特异性较低、敏感性不足,临床诊断准确率面临诸多困难与挑战。目前的共识指南提出运动负荷超声心动图有助于提高HFpEF的检出率,现总结运动负荷超声心动图在HFpEF诊断及评估方面的优势及其局限性。

Heart failure with preserved ejection fraction(HFpEF)accounts for more than half of heart failure cases,its incidence and mortality is similar to the heart failure with reduced ejection fraction and attracts much attention.Echocardiography is commonly used method for clinical evaluation of diastolic function,relevant indicators for HFpEF diagnosis are still used today.Due to its low specificity and low senitivity,the accuracy of clinical diagnosis faces many difficulties and challenges.Current consensus guidelines propose that exercise stress echocardiography helps to increase the detection rate of HFpEF.In this review,we will summarize the current understanding of the use of diastolic stress echocardiography for the diagnosis of HFpEF,highlighting its strengths and limitations.