1. Assessment of left ventricular dyssynchrony by speckle tracking echocardiography in children with duchenne muscular dystrophy
- Author
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Olivier Cazorla, Charlene Bredy, Marie Vincenti, Catherine Barrea, Albano Melli, Alain Lacampagne, Pascal Amedro, Jérémy Fauconnier, Kathleen Lavastre, Pierre Meyer, Lucie Gamon, Audrey Agullo, Nicolas Lanot, Hamouda Abassi, François Rivier, Thibault Mura, Gregoire De La Villeon, Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier), Physiologie & médecine expérimentale du Cœur et des Muscles [U 1046] (PhyMedExp), Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM), Centre Hospitalier Universitaire de Nîmes (CHU Nîmes), Cliniques Universitaires Saint-Luc [Bruxelles], Hôpital Haut-Lévêque [CHU Bordeaux], CHU Bordeaux [Bordeaux], Centre de recherche Cardio-Thoracique de Bordeaux [Bordeaux] (CRCTB), Université Bordeaux Segalen - Bordeaux 2-CHU Bordeaux [Bordeaux]-Institut National de la Santé et de la Recherche Médicale (INSERM), Institut de rythmologie et modélisation cardiaque [Pessac] (IHU Liryc), Herrada, Anthony, UCL - SSS/IREC/PEDI - Pôle de Pédiatrie, and UCL - (SLuc) Service de cardiologie pédiatrique
- Subjects
Male ,medicine.medical_specialty ,Cardiac dyssynchrony ,Adolescent ,Heart Ventricles ,Duchenne muscular dystrophy ,Heart failure ,Speckle tracking echocardiography ,Ventricular Dysfunction, Left ,Predictive Value of Tests ,MESH: Child ,Internal medicine ,DMD ,MESH: Ventricular Dysfunction, Left ,MESH: Muscular Dystrophy, Duchenne ,medicine ,Humans ,Radiology, Nuclear Medicine and imaging ,Prospective Studies ,Child ,Ventricular dyssynchrony ,Speckle tracking ,MESH: Adolescent ,MESH: Humans ,[SDV.MHEP] Life Sciences [q-bio]/Human health and pathology ,business.industry ,Reproducibility of Results ,Paediatrics ,medicine.disease ,MESH: Male ,MESH: Predictive Value of Tests ,MESH: Prospective Studies ,Muscular Dystrophy, Duchenne ,MESH: Reproducibility of Results ,Echocardiography ,Cardiology ,MESH: Echocardiography ,MESH: Heart Ventricles ,business ,Cardiology and Cardiovascular Medicine ,[SDV.MHEP]Life Sciences [q-bio]/Human health and pathology - Abstract
Purpose-Prognosis of Duchenne muscular dystrophy (DMD) is related to cardiac dysfunction. Two dimensional-speckle tracking echocardiography (2D-STE) has recently emerged as a non-invasive functional biomarker for early detection of DMD-related cardiomyopathy. This study aimed to determine, in DMD children, the existence of a left ventricle (LV) dyssynchrony using 2D-STE analysis.Methods-This prospective controlled study enrolled 25 boys with DMD (mean age 11.0±3.5 years) with normal LV ejection fraction and 50 age-matched controls. Three measures were performed to assess LV mechanical dyssynchrony: the opposing-wall delays (longitudinal and radial analyses), the modified Yu index, and the time-to-peak delays of each segment. Feasibility and reproducibility of 2D-STE dyssynchrony were evaluated. Results-All three mechanical dyssynchrony criteria were significantly higher in the DMD group than in healthy subjects: (1) opposing-wall delays in basal inferoseptal to basal anterolateral segments (61.4±45.3 msec vs. 18.3±50.4 msec, Prespectively) and in mid inferoseptal to mid anterolateral segments (58.6±35.3 msec vs. 42.4±36.4 msec, Prespectively), (2) modified Yu index (33.3±10.1 msec vs. 28.5±8.1 msec, P, respectively), and (3) most of time-to-peak values, especially in basal and mid anterolateral segments. Feasibility was excellent and reliability was moderate to excellent, with ICC values ranging from 0.49 to 0.97.Conclusion-Detection of LV mechanical dyssynchrony using 2D-STE analysis is an easily and reproducible method in pediatrics. The existence of an early LV mechanical dyssynchrony visualized using 2D-STE analysis in children with DMD before the onset of cardiomyopathy represents a perspective for future pediatric drug trials in the DMD-related cardiomyopathy prevention. Clinical Trial Registration-Clinicaltrials.gov NCT02418338. Post-hoc study, registered on April 16, 2015.
- Published
- 2021
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