Mild PS in patients with NS is nonprogressive. Severe, and in some cases moderate, PS will invariably require a therapeutic intervention. It is uncommon for HCM to progress or have new onset beyond early childhood. Prognosis of heart disease in NS is influenced most by the findings on presentation.
Children with DS and single-ventricle anatomy have excellent survival when PVR is less than 3 WUm(2) in the first year of life, with minimal mortality beyond 2 years of age. When accounting for PVR, DS alone is not associated with increased mortality in patients with single-ventricle anatomy.
Speckle tracking echocardiography measures myocardial strain and allows for the quantification of regional and global left and right ventricular function. A growing body of literature is supporting its transition from research into clinical practice. This article aims to provide a practical review of strain imaging as it applies to congenital and pediatric heart disease, with the goals of increasing literacy and advocating for greater clinical integration.
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