Nemes Attila, Kormányos Árpád, Ruzsa Zoltán, Achim Alexandru, Ambrus Nóra, Lengyel Csaba
Department of Medicine, Albert Szent-Györgyi Medical School, University of Szeged, H-6725 Szeged, Hungary.
Rev Cardiovasc Med. 2024 Feb 2;25(2):53. doi: 10.31083/j.rcm2502053. eCollection 2024 Feb.
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.
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.
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.
3DSTE-derived LV rotational parameters and TAPSE are not associated suggesting that LV twist is independent of RV longitudinal shortening in healthy circumstances.
左心室（LV）不仅会收缩，其旋转力学在收缩期射血中也起着重要作用，而右心室（RV）在形状和功能上有很大不同，其收缩性并不伴有旋转特征。基于简单M型超声心动图的三尖瓣环平面收缩期位移（TAPSE）反映右心室纵向收缩或缩短。本研究的目的是探讨通过三维斑点追踪超声心动图（3DSTE）评估的左心室旋转力学特征参数与TAPSE之间的关系。还研究了这些参数不同程度之间的相互影响。
本回顾性分析评估了80名平均年龄为28.1±6.3岁（33名男性）、左心室旋转力学正常的健康成年个体的结果。所有病例均接受了完整的二维多普勒超声心动图检查，测量了TAPSE和3DSTE。
在TAPSE为18 - 21 mm与TAPSE≥22 mm的健康病例中，左心室容积和旋转参数均无差异。同样，右心房（RA）容积参数也无差异。TAPSE与左心室基底旋转程度无关。随着左心室基底旋转程度增加，RA容积略有增加。与左心室基底旋转情况类似，TAPSE不随左心室心尖旋转程度变化，且随着左心室心尖旋转程度增加，RA容积有增加趋势。左心室心尖和基底旋转与TAPSE之间无相关性。
3DSTE得出的左心室旋转参数与TAPSE无关，提示在健康情况下左心室扭转独立于右心室纵向缩短。
