Sürücü Hüseyin, Baytaroğlu Corç, Aksoy Faik Alper, Can Naser
Private Avcılar Hospital, Cardiology Department, İstanbul, Turkey.
Private Avcılar Hospital, Cardiology Department, İstanbul, Turkey.
Indian Heart J. 2015 Jul-Aug;67(4):341-6. doi: 10.1016/j.ihj.2015.05.001. Epub 2015 Jun 23.
In this study, we have aimed to evaluate the correlation between echocardiographic parameters that test systolic and diastolic function together.
The study population was divided into two groups according to Vp. Group-1 (n = 103) represented the control group (Vp > 50 cm/s) and group-2 (n = 86) represented patients with systolic and diastolic dysfunctions together (Vp ≤ 50 cm/s). The echocardiographic parameters that evaluate systolic and diastolic function together, such as the Tei and the Sürücü indices, were compared between the groups.
In group-2, the Tei index was higher (p = 0.001) and the Sürücü index was lower (p < 0.001). We also showed that the Tei and Sürücü indices were significantly and negatively correlated. That is, as the Sürücü index decreases, the Tei index increases (p = 0.001).
Vp is an index more affected by diastolic parameters but rarely by systolic parameters because it is measured at diastolic period. The Tei index, on the other hand, is affected by preload variables and needs two different heart cycles for calculation. The Modified Tei index, however, has limited diagnostic value because of high inter-observer variability. In this study, the usability of the Sürücü index is shown in comparison with other indices used for this purpose. Considering that it is less affected by preload variables, can be calculated over a single heart cycle, and has the ability to test variables of both systolic and diastolic periods unlike Vp. We postulate that the Sürücü index is more usable and reliable.
在本研究中，我们旨在评估同时检测收缩功能和舒张功能的超声心动图参数之间的相关性。
根据Vp将研究人群分为两组。第1组（n = 103）为对照组（Vp > 50 cm/s），第2组（n = 86）为合并收缩和舒张功能障碍的患者（Vp ≤ 50 cm/s）。比较两组之间共同评估收缩和舒张功能的超声心动图参数，如Tei指数和Sürücü指数。
在第2组中，Tei指数较高（p = 0.001），Sürücü指数较低（p < 0.001）。我们还表明，Tei指数和Sürücü指数呈显著负相关。也就是说，随着Sürücü指数降低，Tei指数升高（p = 0.001）。
Vp是一个受舒张期参数影响更大而很少受收缩期参数影响的指标，因为它是在舒张期测量的。另一方面，Tei指数受前负荷变量影响，计算需要两个不同的心动周期。然而，改良Tei指数由于观察者间变异性高，诊断价值有限。在本研究中，展示了Sürücü指数与用于此目的的其他指数相比的可用性。考虑到它受前负荷变量影响较小，可在单个心动周期内计算，并且与Vp不同，具有检测收缩期和舒张期变量的能力。我们推测Sürücü指数更实用且可靠。
