Myocardial Rotation and Torsion in Child Growth
2
조회
0
다운로드
1
인용
0
참고문헌
키워드
초록
Background: The speckle tracking echocardiography can benefit to assess the regional myocardial deformations. Although,previous reports suggested no significant change in left ventricular (LV) torsion with aging, there are certain differences in LV rotationat the base and apex. The purpose of this study was to evaluate the change and relationship of LV rotation for torsion withaging in children. Methods: Forty healthy children were recruited and divided into two groups of twenty based on whether the children were preschool-age (2–6 years of age) or school-age (7–12 years of age). After obtaining conventional echocardiographic data, apical and basalshort axis rotation were assessed with speckle tracking echocardiography. LV rotation in the basal and apical short axis planes wasdetermined using six myocardial segments along the central axis. Results: Apical and basal LV rotation did not show the statistical difference with increased age between preschool- and schoolagechildren. Apical radial strain showed significant higher values in preschool-age children, especially at the anterior (52.8 ±17.4% vs. 34.7 ± 23.2%, p < 0.02), lateral (55.8 ± 20.4% vs. 36.1 ± 22.7%, p < 0.02), and posterior segments (57.1 ± 17.6% vs. 38.5 ± 21.7%, p < 0.01). The torsion values did not demonstrate the statistical difference between two groups. Conclusion: This study revealed the tendency of higher rotation values in preschool-age children than in school-age children. The lesser values of rotation and torsion with increased age during childhood warrant further investigation.
Abstract
Background: The speckle tracking echocardiography can benefit to assess the regional myocardial deformations. Although,previous reports suggested no significant change in left ventricular (LV) torsion with aging, there are certain differences in LV rotationat the base and apex. The purpose of this study was to evaluate the change and relationship of LV rotation for torsion withaging in children. Methods: Forty healthy children were recruited and divided into two groups of twenty based on whether the children were preschool-age (2–6 years of age) or school-age (7–12 years of age). After obtaining conventional echocardiographic data, apical and basalshort axis rotation were assessed with speckle tracking echocardiography. LV rotation in the basal and apical short axis planes wasdetermined using six myocardial segments along the central axis. Results: Apical and basal LV rotation did not show the statistical difference with increased age between preschool- and schoolagechildren. Apical radial strain showed significant higher values in preschool-age children, especially at the anterior (52.8 ±17.4% vs. 34.7 ± 23.2%, p < 0.02), lateral (55.8 ± 20.4% vs. 36.1 ± 22.7%, p < 0.02), and posterior segments (57.1 ± 17.6% vs. 38.5 ± 21.7%, p < 0.01). The torsion values did not demonstrate the statistical difference between two groups. Conclusion: This study revealed the tendency of higher rotation values in preschool-age children than in school-age children. The lesser values of rotation and torsion with increased age during childhood warrant further investigation.
참고문헌 (35)
- Buckberg GD, "Left ventricular form and function: scientific priorities and strategic planning for development of new views of disease", Circulation, 110, pp.e333~e336 (2004)
- Notomi Y, "Measurement of ventricular torsion by two-dimensional ultrasound speckle tracking imaging", J Am Coll Cardiol, 45, pp.2034~2041 (2005)
- McDonald IG, "The shape and movements of the human left ventricle during systole. A study by cineangiography and by cineradiography of epicardial markers", Am J Cardiol, 26, pp.221~230 (1970)
- Rademakers FE, "Dissociation between left ventricular untwisting and filling. Accentuation by catecholamines", Circulation, 85, pp.1572~1581 (1992)
- Gibbons Kroeker CA, "An optical device to measure the dynamics of apex rotation of the left ventricle", Am J Physiol, 265(4 Pt 2), pp.H1444~H1449 (1993)
- Moon MR, "Alterations in left ventricular twist mechanics with inotropic stimulation and volume loading in human subjects", Circulation, 89, pp.142~150 (1994)
- Hansen DE, "Effect of volume loading, pressure loading, and inotropic stimulation on left ventricular torsion in humans", Circulation, 83, pp.1315~1326 (1991)
- Yun KL, "Alterations in left ventricular diastolic twist mechanics during acute human cardiac allograft rejection", Circulation, 83, pp.962~973 (1991)
- Maier SE, "Evaluation of left ventricular segmental wall motion in hypertrophic cardiomyopathy with myocardial tagging", Circulation, 86, pp.1919~1928 (1992)
- Buchalter MB, "Rotational deformation of the canine left ventricle measured by magnetic resonance tagging: effects of catecholamines, ischaemia, and pacing", Cardiovasc Res, 28, pp.629~635 (1994)
- DeAnda A Jr, "Left ventricular function, twist, and recoil after mitral valve replacement", Circulation, 92(9 Suppl), pp.II458~II466 (1995)
- Gibbons Kroeker CA, "Effects of load manipulations, heart rate, and contractility on left ventricular apical rotation. An experimental study in anesthetized dogs", Circulation, 92, pp.130~141 (1995)
- Kroeker CA, "Effects of ischemia on left ventricular apex rotation. An experimental study in anesthetized dogs", Circulation, 92, pp.3539~3548 (1995)
- Knudtson ML, "Dynamics of left ventricular apex rotation during angioplasty: a sensitive index of ischemic dysfunction", Circulation, 96, pp.801~808 (1997)
- Stuber M, "Alterations in the local myocardial motion pattern in patients suffering from pressure overload due to aortic stenosis", Circulation, 100, pp.361~368 (1999)
- Nagel E, "Cardiac rotation and relaxation after anterolateral myocardial infarction", Coron Artery Dis, 11, pp.261~267 (2000)
- Sandstede JJ, "Cardiac systolic rotation and contraction before and after valve replacement for aortic stenosis: a myocardial tagging study using MR imaging", AJR Am J Roentgenol, 178, pp.953~958 (2002)
- Fuchs E, "Cardiac rotation and relaxation in patients with chronic heart failure", Eur J Heart Fail, 6, pp.715~722 (2004)
- Tibayan FA, "Alterations in left ventricular torsion and diastolic recoil after myocardial infarction with and without chronic ischemic mitral regurgitation", Circulation, 110(11 Suppl 1), pp.II109~II114 (2004)
- Wagner RF, "Statistics of speckle in ultrasound B-scans", IEEE Trans Sonics Ultrasonics, 30, pp.156~163 (1983)
- Bohs LN, "A novel method for angle independent ultrasonic imaging of blood flow and tissue motion", IEEE Trans Biomed Eng, 38, pp.280~286 (1991)
- Meunier J, "Ultrasonic texture motion analysis: theory and simulation", IEEE Trans Med Imaging, 14, pp.293~300 (1995)
- Sühling M, "Multiscale motion mapping: a novel computer vision technique for quantitative, objective echocardiographic motion measurement independent of Doppler: first clinical description and validation", Circulation, 110, pp.3093~3099 (2004)
- Notomi Y, "Maturational and adaptive modulation of left ventricular torsional biomechanics: Doppler tissue imaging observation from infancy to adulthood", Circulation, 113, pp.2534~2541 (2006)
- Stopfkuchen H, "Changes of the cardiovascular system during the perinatal period", Eur J Pediatr, 146, pp.545~549 (1987)
- Wulfsohn D, "Postnatal growth of cardiomyocytes in the left ventricle of the rat", Anat Rec A Discov Mol Cell Evol Biol, 277, pp.236~247 (2004)
- Siedner S, "Developmental changes in contractility and sarcomeric proteins from the early embryonic to the adult stage in the mouse heart", J Physiol, 548(Pt 2), pp.493~505 (2003)
- Lahmers S, "Developmental control of titin isoform expression and passive stiffness in fetal and neonatal myocardium", Circ Res, 94, pp.505~513 (2004)
- Senzaki H, "Age-associated changes in arterial elastic properties in children", Eur J Pediatr, 161, pp.547~551 (2002)
- Oxenham H, "Cardiovascular aging and heart failure", Eur J Heart Fail, 5, pp.427~434 (2003)
- Setser RM, "Persistent abnormal left ventricular systolic torsion in dilated cardiomyopathy after partial left ventriculectomy", J Thorac Cardiovasc Surg, 126, pp.48~55 (2003)
- Notomi Y, "Assessment of left ventricular torsional deformation by Doppler tissue imaging:validation study with tagged magnetic resonance imaging", Circulation, 111, pp.1141~1147 (2005)
- Colan SD, "Developmental modulation of myocardial mechanics: age- and growth-related alterations in afterload and contractility", J Am Coll Cardiol, 19, pp.619~629 (1992)
- Harada K, "Role of left ventricular mass", volume ratio on transmitral flow velocity patterns from infancy to childhood, 1998, pp.63, 9~14
- Nidorf SM, "New perspectives in the assessment of cardiac chamber dimensions during development and adulthood", J Am Coll Cardiol, 19, pp.983~988 (1992)