Key result
Three-dimensional speckle-tracking echocardiography demonstrated left ventricular rigid body rotation, characterized by the near absence of left ventricular twist, in hypoplastic right-heart syndrome.
Case Report (n=1)
This case report provides the first demonstration of left ventricular 'rigid body rotation' in hypoplastic right-heart syndrome using 3D speckle-tracking echocardiography.
May indicate altered LV mechanics in hypoplastic right-heart syndrome; leaves open whether 3D speckle-tracking echocardiography aids management in this rare condition.
Left ventricular twist results from the movement of two orthogonally oriented muscular bands of the helical myocardial structure, with a consequent clockwise rotation of the left ventricular base and counterclockwise rotation of the left ventricular apex. To the best of the authors' knowledge, this is the first time that left ventricular "rigid body rotation", the near absence of left ventricular twist in hypoplastic right-heart syndrome, has been demonstrated.
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Nemes et al. (2014) conducted a case report in Hypoplastic right-heart syndrome (n=1). Three-dimensional speckle-tracking echocardiography was evaluated on Left ventricular rigid body rotation (near absence of left ventricular twist). Three-dimensional speckle-tracking echocardiography demonstrated left ventricular rigid body rotation, characterized by the near absence of left ventricular twist, in hypoplastic right-heart syndrome.
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