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Erschienen in: The International Journal of Cardiovascular Imaging 8/2019

29.04.2019 | Original Paper

Two-dimensional speckle tracking echocardiography assessed right ventricular function and exercise capacity in pre-capillary pulmonary hypertension

verfasst von: Bing-Yang Liu, Wei-Chun Wu, Qi-Xian Zeng, Zhi-Hong Liu, Li-Li Niu, Yue Tian, Xiao-Ling Cheng, Qin Luo, Zhi-Hui Zhao, Li Huang, Hao Wang, Jian-Guo He, Chang-Ming Xiong

Erschienen in: The International Journal of Cardiovascular Imaging | Ausgabe 8/2019

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Abstract

Resting two-dimensional speckle tracking echocardiography (2D-STE) identified right ventricular (RV) systolic function were reported to predict exercise capacity in pulmonary hypertension (PH) patients, but little attention had been payed to 2D-STE detected RV diastolic function. Therefore, we aim to elucidate and compare the relations between 2D-STE identified RV diastolic/systolic functions and peak oxygen consumption (PVO2) determined by cardiopulmonary exercise testing (CPET) in pre-capillary PH. 2D-STE was performed in 66 pre-capillary PH patients and 28 healthy controls. Linear correlation and multivariate regression analyses were performed to evaluate and compare the relations between RV 2D-STE parameters and PVO2. Receiver operating characteristic curves were used to compare the predictive value of 2D-STE parameters in predicting the cut-off—PVO2 < 11 ml/min/kg. There were significant differences of all the 2D-STE parameters between PH patients and healthy controls. In patients, RV-peak global longitudinal strain (GLS, rs = − 0.498, P < 0.001), RV- peak systolic strain rate (GSRs, rs = − 0.537, P < 0.001) and RV- peak early diastolic strain rate (GSRe, rs = 0.527, P < 0.001) significantly correlated with PVO2, but no significant correlation was observed between RV- peak late diastolic strain rate (GSRa, rs = 0.208, P = 0.093) and PVO2. The first multivariate regression analysis of clinical data without echocardiographic parameters identified WHO functional class, NT-proBNP and BMI as independent predictors of PVO2 (Model-1, adjusted r2 = 0.421, P < 0.001); Then we added conventional echocardiographic parameters and 2D-STE parameters to the clinical data, identified S,(Model-2,adjusted r2 = 0.502, P < 0.001), RV-GLS (Model-3, adjusted r2 = 0.491, P < 0.001), RV-GSRe (Model-4, adjusted r2 = 0.500, P < 0.001) and RV-GSRs (Model-5, adjusted r2 = 0.519, P < 0.001) as independent predictors of PVO2, respectively. The predictive power was increased, and Model-5 including RV-GSRs showed the highest predictive capability. ROC curves found RV-GSRs expressed the strongest predictive value (AUC = 0.88, P < 0.001), and RV-GSRs > − 0.65/s had a 88.2% sensibility and 82.2% specificity to predict PVO2 < 11 ml/min/kg. 2D-STE assessed RV function improves the prediction of exercise capacity represented by PVO2 in pre-capillary PH.

Graphical abstract

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Metadaten
Titel
Two-dimensional speckle tracking echocardiography assessed right ventricular function and exercise capacity in pre-capillary pulmonary hypertension
verfasst von
Bing-Yang Liu
Wei-Chun Wu
Qi-Xian Zeng
Zhi-Hong Liu
Li-Li Niu
Yue Tian
Xiao-Ling Cheng
Qin Luo
Zhi-Hui Zhao
Li Huang
Hao Wang
Jian-Guo He
Chang-Ming Xiong
Publikationsdatum
29.04.2019
Verlag
Springer Netherlands
Erschienen in
The International Journal of Cardiovascular Imaging / Ausgabe 8/2019
Print ISSN: 1569-5794
Elektronische ISSN: 1875-8312
DOI
https://doi.org/10.1007/s10554-019-01605-w

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