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

Soo Jung Kang1, Mira Kim1, Seo Jung Hwang2

  • 1Department of Pediatrics, CHA Bundang Medical Center, CHA University School of Medicine, Seongnam, Korea.

Journal of Cardiovascular Ultrasound
|November 3, 2017
PubMed

Insights

Velocity Vector Imaging (VVI) can detect evolving right ventricular systolic dysfunction (RVSD) in preterm infants. This screening method identifies RVSD progression from 4 to 24 months corrected age in asymptomatic children.

Area of Science:

  • Pediatric Cardiology
  • Neonatology
  • Echocardiography

Background:

  • Right ventricular systolic dysfunction (RVSD) is a concern in preterm infants.
  • Early detection of RVSD progression is crucial for long-term outcomes.
  • Velocity Vector Imaging (VVI) offers advanced echocardiographic assessment.

Purpose of the Study:

  • To assess the progression of RVSD in preterm children using VVI.
  • To evaluate RV longitudinal peak systolic strain (LPSS) from infancy to 24-month corrected age.
  • To compare preterm infants with term controls.

Main Methods:

  • Retrospective study of 24 preterm infants (<33 weeks GA) and 10 term controls.
  • Sequential RV LPSS measurements at 4 and 24 months corrected age.
  • VVI used for detailed echocardiographic analysis.

Main Results:

  • RVSD (RV LPSS < 16%) detected in 29.2% of preterm children by 24 months.
  • 5/7 preterm children with RVSD at 24 months showed improvement from 4 months.
  • Only 2/7 with RVSD had a history of moderate/severe bronchopulmonary dysplasia.

Conclusions:

  • Routine VVI screening can detect RVSD progression in asymptomatic preterm children.
  • RVSD can evolve between 4 and 24 months corrected age.
  • VVI is a valuable tool for monitoring RV function in this population.
Abstract

Keywords:
Cardiac deformationPeak systolic strainPretermRight ventricular systolic dysfunction

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