Abstract
Normal apical and basal left ventricular (LV) rotational mechanics play a pivotal role in systolic and diastolic cardiac function, and tend to be abnormal in dilated cardiomyopathy (DCM) [ 1 Geyer H. Caracciolo G. Abe H. et al. Assessment of myocardial mechanics using speckle tracking echocardiography: fundamentals and clinical applications. J Am Soc Echocardiogr. 2010; 23: 351-369 Abstract Full Text Full Text PDF PubMed Scopus (788) Google Scholar , 2 Bertini M. Sengupta P.P. Nucifora G. et al. Role of left ventricular twist mechanics in the assessment of cardiac dyssynchrony in heart failure. J Am Coll Cardiol Img. 2009; 2: 1425-1435 Abstract Full Text Full Text PDF Scopus (48) Google Scholar ]. LV rotation may even be reversed with subsequent loss of LV twist [ 3 Popescu B.A. Beladan C.C. Calin A. et al. Left ventricular remodelling and torsional dynamics in dilated cardiomyopathy: reversed apical rotation as a marker of disease severity. Eur J Heart Fail. 2009; 11: 945-951 Crossref PubMed Scopus (70) Google Scholar , 4 Sade L.E. Demir O. Atar I. Müderrisoglu H. Özin B. Effect of mechanical dyssynchrony and cardiac resynchronization therapy on left ventricular rotational mechanics. Am J Cardiol. 2008; 101: 1163-1169 Abstract Full Text Full Text PDF PubMed Scopus (74) Google Scholar ]. Only limited data on LV rotational abnormalities are available in children with DCM [ [5] Jin S.M. Noh C.I. Bae E.J. Choi J.Y. Yun Y.S. Decreased left ventricular torsion and untwisting in children with dilated cardiomyopathy. J Korean Med Sci. 2007; 22: 633-640 Crossref PubMed Scopus (27) Google Scholar ]. Moreover, whether reversed LV rotation may recover during follow-up is unknown. This retrospective study assessed if reversed LV rotation can be identified in children with DCM, and if reversed LV rotation may recover during follow-up.
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