Assessment of left and right ventricular rotational interdependence: A speckle tracking echocardiographic study

Objective We sought to investigate the possible interdependence of the left (LV) and right ventricular (RV) rotational mechanics. Background Although myocardial fiber architecture and the effect of various pathologic conditions on LV torsional mechanics have already been investigated through multipl...

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Bibliographic Details
Published in:Echocardiography (Mount Kisco, N.Y.) N.Y.), 2017-03, Vol.34 (3), p.415-421
Main Authors: Alizadehasl, Azin, Sadeghpour, Anita, Hali, Reza, Bakhshandeh Abkenar, Hooman, Badano, Luigi
Format: Article
Language:English
Subjects:
Adult
apical rotation
basal rotation
Cross-Sectional Studies
Echocardiography
Female
Heart Diseases - complications
Heart Ventricles - diagnostic imaging
Heart Ventricles - physiopathology
Humans
left ventricular torsion
Male
Middle Aged
Prospective Studies
right ventricular torsion
Rotation
speckle tracking
Torsion Abnormality - complications
Torsion Abnormality - diagnostic imaging
Torsion Abnormality - physiopathology
ventricular interdependence
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Summary:Objective We sought to investigate the possible interdependence of the left (LV) and right ventricular (RV) rotational mechanics. Background Although myocardial fiber architecture and the effect of various pathologic conditions on LV torsional mechanics have already been investigated through multiple studies using different methods, there is still a significant debate about the actual presence and functional significance of RV rotational mechanics. Methods We perform a cross‐sectional prospective study of 118 subjects, including 19 normal subjects (NS, 35±7 years), 34 patients with severe aortic stenosis (AS, 44±16 years), 26 patients with nonobstructive hypertrophic cardiomyopathies (HCM, 46±18), and 39 patients with nonischemic dilated cardiomyopathies (DCM, 39±13 years). LV and RV rotational parameters were measured using velocity vector imaging. Total LV and RV apical segment rotations as well as the rotation of the free wall of RV apex were measured separately. Interdependence of the LV and RV rotational mechanics was assessed using the Spearman rho test. Results Both LV (7.3°±4.1° in NS, 11°±4.6° in AS, 7.7°±5.2° in HCM, and 1.9°±2° in DCM, P=
ISSN:0742-2822
1540-8175
DOI:10.1111/echo.13452