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J Cardiovasc Ultrasound. 2017 Sep;25(3):98-104. doi: 10.4250/jcu.2017.25.3.98. Epub 2017 Sep 29.

Progression of Right Ventricular Systolic Dysfunction Detected by Myocardial Deformation Imaging in Asymptomatic Preterm Children.

Author information

1
Department of Pediatrics, CHA Bundang Medical Center, CHA University School of Medicine, Seongnam, Korea.
2
Department of Diagnostic Laboratory Medicine, CHA Bundang Medical Center, CHA University School of Medicine, Seongnam, Korea.

Abstract

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.

KEYWORDS:

Cardiac deformation; Peak systolic strain; Preterm; Right ventricular systolic dysfunction

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