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KMID : 0390620170250030098
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Journal of Cardiovascular Ultrasound
2017 Volume.25 No. 3 p.98 ~ p.104
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Progression of Right Ventricular Systolic Dysfunction Detected by Myocardial Deformation Imaging in Asymptomatic Preterm Children
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Kang Soo-Jung
Kim Mi-Ra
Hwang Seo-Jung
Kim Hyo-Jin
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Abstract
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Background: To detect progression of right ventricular (RV) systolic dysfunction (RVSD) in asymptomatic preterm children from infancy to 24-month corrected age, using velocity vector imaging (VVI).
Methods: Retrospective study comparing sequential RV longitudinal peak systolic strain (LPSS) from 24 children born at < 33 weeks of gestational age and 10 term infants recruited as controls, obtained at a mean of 4-month (first exam) and 24-month corrected age (second exam).
Results: In 7/24 (29.2%) of preterm children, RV LPSS of < 16%, defined as RVSD, was detected at the second exam; 5/7 of these children had RV LPSS > 16% at the first exam, and only 2/7 of these children had a history of moderate or severe bronchopulmonary dysplasia.
Conclusion: In asymptomatic preterm children, routine echocardiographic screening using VVI could detect RVSD which could progress from 4?24 month corrected age.
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KEYWORD
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Peak systolic strain , Preterm , Right ventricular systolic dysfunction , Cardiac deformation
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