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首页> 外文期刊>Korean Circulation Journal >Systolic Long Axis Function of the Left Ventricle, as Assessed by 2-D Strain, is Reduced in the Patients Who Have Diastolic Dysfunction and a Normal Ejection Fraction
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Systolic Long Axis Function of the Left Ventricle, as Assessed by 2-D Strain, is Reduced in the Patients Who Have Diastolic Dysfunction and a Normal Ejection Fraction

机译：舒张功能障碍和射血分数正常的患者按二维应变评估左室的收缩期长轴功能降低

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Background and Objectives Echocardiographic evaluation of the long axis left ventricle (LV) function has been reported to be useful for understanding heart failure in those patients with a preserved ejection fraction (EF). The global and segmental peak LV systolic longitudinal strain (PSLS), as determined by the 2D speckle tracking method, may be related with the conventional diastolic parameters. We sought to determine whether the PSLS could reveal LV systolic dysfunction in those patients who have a normal EF and diastolic dysfunction. Subjects and Methods A total of 168 patients who underwent a routine echocardiographic examination were evaluated. Echocardiographic evaluations were performed and the patients were grouped according to the grade of their diastolic dysfunction. The global and segmental PSLS were analyzed off-line. Results Measurements of the LV PSLS were successfully obtained in 83% of the patients. The mid and basal PSLS values were significantly lower in the patients with grade I and II diastolic dysfunction (-17.5±2.0% and -17.5±2.3%, respectively) versus the normal healthy controls (-20.6±1.9%, p Conclusion The systolic LV long-axis function, as determined by 2D strain and especially in the mid and basal LV segments, is reduced in the patients with diastolic dysfunction in spite of their normal LV EF.
机译：背景和目的据报道，超声心动图评估长轴左心室（LV）功能对于了解射血分数（EF）保留的患者的心力衰竭有用。通过2D散斑跟踪方法确定的整体和分段峰值LV收缩期纵向应变（PSLS）可能与常规舒张参数有关。我们试图确定PSLS是否可以在那些具有正常EF和舒张功能障碍的患者中显示LV收缩功能障碍。受试者与方法对总共168例接受常规超声心动图检查的患者进行了评估。进行超声心动图评估，并根据患者舒张功能障碍的等级对其进行分组。离线分析了全局和分段PSLS。结果在83％的患者中成功获得了LV PSLS的测量值。 I级和II级舒张功能不全患者的中，基​​底PSLS值显着较低（分别为-17.5±2.0％和-17.5±2.3％），而正常健康对照组为（-20.6±1.9％，p）结论舒张功能不全的患者尽管其LV EF正常，但由2D应变确定的LV长轴功能（尤其是在中，基底LV段）降低了。

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