PDF(Pubmed)
Abstract：
UNASSIGNED: The left ventricle (LV) not only contracts, but its rotational mechanics have a significant role in systolic ejection, whereas the right ventricle (RV) is substantially different in shape and function, and its contractility is not accompanied by rotational features. Simple M-mode echocardiography-based tricuspid annular plane systolic excursion (TAPSE) reflects RV longitudinal contraction or shortening. The aim of the present study was to examine the relationship between the parameters characterizing the rotational mechanics of the LV as assessed by three-dimensional speckle-tracking echocardiography (3DSTE) and the TAPSE. The effects of different degrees of these parameters on each other were also examined.
UNASSIGNED: The present retrospective analysis evaluated the results of 80 healthy adult individuals with an average age of 28.1 ± 6.3 years (33 males) with LV rotational mechanics being directed normally. All cases have undergone complete two-dimensional Doppler echocardiography with the measurement of TAPSE and 3DSTE.
UNASSIGNED: None of the LV volumes and rotational parameters showed any differences in healthy cases with TAPSE 18-21 mm vs. TAPSE > 22 mm. Similarly, right atrial (RA) volumetric parameters did not differ either. TAPSE showed no associations with the degree of basal LV rotation. RA volumes were slightly increased with higher basal LV rotation. Similar to basal LV rotation, TAPSE did not change with the degree of apical LV rotation and a tendentious increase of RA volumes could be demonstrated with increasing apical LV rotation. No correlation could be demonstrated between apical and basal LV rotations and TAPSE.
UNASSIGNED: 3DSTE-derived LV rotational parameters and TAPSE are not associated suggesting that LV twist is independent of RV longitudinal shortening in healthy circumstances.
UNASSIGNED: The present retrospective analysis evaluated the results of 80 healthy adult individuals with an average age of 28.1 ± 6.3 years (33 males) with LV rotational mechanics being directed normally. All cases have undergone complete two-dimensional Doppler echocardiography with the measurement of TAPSE and 3DSTE.
UNASSIGNED: None of the LV volumes and rotational parameters showed any differences in healthy cases with TAPSE 18-21 mm vs. TAPSE > 22 mm. Similarly, right atrial (RA) volumetric parameters did not differ either. TAPSE showed no associations with the degree of basal LV rotation. RA volumes were slightly increased with higher basal LV rotation. Similar to basal LV rotation, TAPSE did not change with the degree of apical LV rotation and a tendentious increase of RA volumes could be demonstrated with increasing apical LV rotation. No correlation could be demonstrated between apical and basal LV rotations and TAPSE.
UNASSIGNED: 3DSTE-derived LV rotational parameters and TAPSE are not associated suggesting that LV twist is independent of RV longitudinal shortening in healthy circumstances.
摘要：
■左心室（LV）不仅收缩，但是它的旋转力学在收缩期射血中起着重要作用，而右心室（RV）在形状和功能上有很大不同，它的收缩性不伴有旋转特征。基于简单M型超声心动图的三尖瓣环平面收缩期偏移（TAPSE）反映RV纵向收缩或缩短。本研究的目的是检查通过三维斑点追踪超声心动图（3DSTE）和TAPSE评估的表征LV旋转力学的参数之间的关系。还检查了这些参数的不同程度对彼此的影响。
■本回顾性分析评估了80名平均年龄为28.1±6.3岁的健康成年人（33名男性）的结果，LV旋转力学正常。所有病例均进行了完整的二维多普勒超声心动图，并测量了TAPSE和3DSTE。
■在TAPSE18-21mm的健康病例中，左心室体积和旋转参数均未显示任何差异。TAPSE>22毫米。同样，右心房(RA)容积参数也无差异.TAPSE显示与基础LV旋转程度无关。RA体积随着基础LV旋转的增加而略有增加。类似于基础左心室旋转，TAPSE不随心尖LV旋转的程度而变化，并且随着心尖LV旋转的增加，可以证明RA体积有倾向性增加。心尖和基底LV旋转与TAPSE之间没有相关性。
■3DSTE衍生的LV旋转参数和TAPSE不相关，表明在健康情况下LV扭曲与RV纵向缩短无关。
■本回顾性分析评估了80名平均年龄为28.1±6.3岁的健康成年人（33名男性）的结果，LV旋转力学正常。所有病例均进行了完整的二维多普勒超声心动图，并测量了TAPSE和3DSTE。
■在TAPSE18-21mm的健康病例中，左心室体积和旋转参数均未显示任何差异。TAPSE>22毫米。同样，右心房(RA)容积参数也无差异.TAPSE显示与基础LV旋转程度无关。RA体积随着基础LV旋转的增加而略有增加。类似于基础左心室旋转，TAPSE不随心尖LV旋转的程度而变化，并且随着心尖LV旋转的增加，可以证明RA体积有倾向性增加。心尖和基底LV旋转与TAPSE之间没有相关性。
■3DSTE衍生的LV旋转参数和TAPSE不相关，表明在健康情况下LV扭曲与RV纵向缩短无关。
