中华放射肿瘤学杂志
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Chinese Journal of Radiation Oncology  2019, Vol. 28 Issue (5): 344-348    DOI: 10.3760/cma.j.issn.1004-4221.2019.05.005
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Two-dimensional speckle tracking imaging in assessing the left ventricular diastolic function of patients with esophageal carcinoma after radiotherapy
Yang Fei1, Chen Yong1, Chen Yong2, Yu Haidi1, Liu Min2
1. Department of Echocardiography,Northern Jiangsu People′s Hospital Affiliated to Yangzhou University,Yangzhou 225001,China;
2. Department of Oncology,Northern Jiangsu People′s Hospital Affiliated to Yangzhou University,Yangzhou 225001,China
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Abstract  Objective To evaluate the early injury and dynamic changes of the left ventricular diastolic function of patients with esophageal carcinoma after radiotherapy by using two-dimensional speckle tracking imaging (2D-STI). Methods From 2017 to 2018,echocardiography examinations were performed in 39 patients with esophageal carcinoma before, during and after the first thoracic radiotherapy to measure the left ventricular end diastolic volume (LVEDV),left ventricular end systolic volume (LVESV),left ventricular ejection fraction (LVEF),early diastolic mitral flow velocity/early diastolic mitral annular peak velocity (E/e′),left atrial volume (LAV),2D-STI parameters including the left ventricular global longitudinal strain (GLS),global systolic stain rate (GSRs),global early diastolic strain rate (GSRe),global late diastolic strain rate (GSRa) and E/GSRe ratio. According to the GLS of patients with esophageal carcinoma after radiotherapy (cumulative dose≥50 Gy),the patients were divided into good prognosis (n=23) and poor prognosis groups (n=16). The E/GSRe ratio was statistically compared between two groups. Results The E/e′and LAVI were increased significantly only after radiotherapy (both P<0.05),and LVEF was decreased significantly only after radiotherapy (P<0.05). The e′ tended to decline before, during and after radiotherapy (all P<0.05).GLS and GSRs were significantly decreased only after radiotherapy (both P<0.05), whereas GSRa was considerably decreased during radiotherapy (P<0.05).E/GSRe tended to increase (P<0.05). Compared with the good prognosis group, E/GSRe was significantly increased after radiotherapy in the poor prognosis group (P<0.05). Conclusions Diastolic dysfunction can occur in the early stage of radiation-induced heart injury. The global diastolic strain rate and E/GSRe obtained by 2D-STI can be used to assess the early left ventricular dysfunction. E/GSRe can be more sensitive to evaluate the clinical prognosis compared with the global diastolic strain rate.
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Articles by authors
Yang Fei
Chen Yong
Chen Yong
Yu Haidi
Liu Min
Key wordsTwo-dimensional speckle tracking imaging      Ventricular diastolic function      Esophageal neoplasm/radiotherapy     
Received: 17 August 2018     
Fund:Social Development Project of Yangzhou City (YZ2014181)
Corresponding Authors: Chen Yong,Email:C.y_2008@163.com;Chen Yong,Email:aihuicy@sina.com   
Cite this article:   
Yang Fei,Chen Yong,Chen Yong et al. Two-dimensional speckle tracking imaging in assessing the left ventricular diastolic function of patients with esophageal carcinoma after radiotherapy[J]. Chinese Journal of Radiation Oncology, 2019, 28(5): 344-348.
Yang Fei,Chen Yong,Chen Yong et al. Two-dimensional speckle tracking imaging in assessing the left ventricular diastolic function of patients with esophageal carcinoma after radiotherapy[J]. Chinese Journal of Radiation Oncology, 2019, 28(5): 344-348.
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http://journal12.magtechjournal.com/Jweb_fszlx/EN/10.3760/cma.j.issn.1004-4221.2019.05.005     OR     http://journal12.magtechjournal.com/Jweb_fszlx/EN/Y2019/V28/I5/344
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