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Evaluation of the Left Ventricular Hemodynamic Status of Double-Root Translocation Patients Through Vector Flow Mapping

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Abstract

The double-root translocation (DRT) procedure is considered as a new choice for surgical management of complex congenital heart disease. Our study aims to investigate the left ventricular hemodynamic status after DRT by energy loss (EL), involving 42 patients who underwent DRT as well as 42 healthy volunteers as controls. The EL of left ventricle (LV) during different periods (rapid filling-RF, atrial contraction-AC, isovolumic contraction-IVC, rapid ejection-RE) of the same cardiac cycle were obtained and analyzed. Compared to the controls, global LV and apical three chamber-EL at AC and IVC periods in DRT group were higher (p < 0.05), and EL at RE period of DRT group was moderately lower. In the correlation analysis, the global EL at the RF was correlated with E wave (r = 0.47, p = 0.03), E/e′ (r = 0.50, p = 0.02), BSA (r = − 0.54, p = 0.01), and age (r = − 0.67, p < 0.001). AC and RE- global EL were significantly correlated with E/e′ (r = 0.49, r = 0.59, p < 0.05). There was a strong positive correlation between E/e′ and global EL at the IVC (r = 0.62, p = 0.003) and a moderate negative correlation with age (r = − 0.44, p = 0.04). The present study confirms that EL is a feasible and reproducible indicator for quantitatively evaluating LV hemodynamic status in patients who underwent DRT and reveals that DRT can lead to approximatively normal long-term hemodynamic performance of LV.

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Acknowledgements

The authors thank Dr. Yiran Hu ( Fuwai Hospital, Beijing, China) for his assistance of echocardiographic data analysis.

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Authors and Affiliations

  1. Department of Ultrasound, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China

    Hui Li, Qinglong Meng & Kunjing Pang

  2. Department of Surgery, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China

    Shengshou Hu & Rui Liu

  3. Hitachi Medical (Guangzhou) Co., Ltd, Guangzhou, China

    Yuhong Feng

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  1. Hui Li
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  2. Shengshou Hu
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  3. Qinglong Meng
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  4. Yuhong Feng
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  5. Rui Liu
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  6. Kunjing Pang
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Contributions

HL involved in design and drafting article. QLM and YHF performed data collection and data analysis. RL did critical revision of article. SHH and KJP participated in approval of the article.

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Correspondence to Kunjing Pang.

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Li, H., Hu, S., Meng, Q. et al. Evaluation of the Left Ventricular Hemodynamic Status of Double-Root Translocation Patients Through Vector Flow Mapping. Pediatr Cardiol 41, 1466–1472 (2020). https://doi.org/10.1007/s00246-020-02407-x

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  • DOI: https://doi.org/10.1007/s00246-020-02407-x

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