Diagnostic Value of Rigid Body Rotation in Noncompaction Cardiomyopathy

Peripartum Cardiomyopathy Associated With Left Ventricular Noncompaction Phenotype and Reversible Rigid Body Rotation

“…2 Rigid body rotation often occurs in patients with LV noncompaction and has been suggested as a functional diagnostic criteria. 3 The normal rotational patterns of the apex and base occur because of the opposite movements of the subepicardial and subendocardial fibers during systole. The subepicardial fibers have a longer rotatory arm and, thus, exert the dominant force that causes the base to move clockwise and the apex counterclockwise during systole.…”

Noncompaction Cardiomyopathy

“…Исчезновение меха-низма скручивания миокарда левого желудочка в эхокардиографии получило название «ригидное вращение тела» (rigid body rotation) [73]. Наличие эффекта ригидного вращения тела имеет большое значение в отношении прогноза у больных с неком-пактной кардиомиопатией [74]. Примечательно, что у всех членов семьи пациентов с некомпактной кар-диомиопатией был обнаружен эффект ригидного вращения тела [70].…”

Left ventricular rotational and strain analysis by three-dimensional speckle tracking echocardiography in cardiomyopathies

“…In a recent study using 2DSTE, LV basal and LV apical rotations were in the same direction with near absence of LV twist in NCCM patients (33). Moreover, this 'rigid body rotation' was found to be an objective, quantitative, and reproducible functional criterion with good predictive value for the diagnosis of NCCM (50). To the best of authors' knowledge this is the first time confirming LV 'rigid body rotation' in an NCCM patient by 3DSTE.…”

“…Based on previous 2DSTE studies, it was suggested that twist is absent in NCCM, the LV 'rotates' as a rigid body (66). This movement was called 'rigid body rotation' in the English literature, its prognostic value was confirmed as well (50).…”