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| Evaluation of right ventricular systolic function in children with ventricular septal defect by speckle tracking imaging |
| LI Sha, ZHANG Li-min, MA Chun-yan, YANG Jun |
| Department of Cardiovascular Ultrasound, the First Hospital of China Medical University, Shenyang 110001, China |
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Abstract Objective: To explore the value of two-dimensional speckle tracking imaging(2D-STI) strain in evaluating right ventricular systolic function in children with ventricular septal defect(VSD). Methods: Forty simple VSD patients and thirty healthy children were included in this study. According to VSD, the patients were divided into two groups: VSD without pulmonary hypertension(PH) group and VSD with PH group. Conventional parameters of right ventricular were measured. Right ventricular peak strain, systolic strain rate application with 2D-STI were measured. Results: Compared with control group and VSD without PH group, right ventricular end-diastolic area and end systolic area increased in VSD with PH group(P<0.05), and the difference was statistically significant. Peak strain and peak strain rate in each section and the globle right ventricle decreased, the difference was statistically significant(P<0.05). Compared with control group, it showed no signigicant differences in VSD without PH group(P>0.05). Conclusions: The VSD with PH has decreased right ventricular systolic function. To evaluate right ventricular systolic function of VSD in children, 2D-STI parameters of strain and strain rate are of great significance.
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Received: 29 April 2014
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Corresponding Authors:
ZHANG Li-min
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2014, Vol. 25 
