Z-Value of Mitral Annular Plane Systolic Excursion Is a Useful Indicator to Predict Left Ventricular Stroke Volume in Children: Comparing Longitudinal and Radial Contractions

Background The purpose of our study was to explore the pumping mechanism of the left ventricle (LV) and to examine the role of longitudinal LV contraction in LV stroke volume (LVSV) compared to a radial LV contraction. Methods and Results We examined 890 consecutive children without structural heart...

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Bibliographic Details
Published in:Echocardiography (Mount Kisco, N.Y.) N.Y.), 2016-02, Vol.33 (2), p.290-298
Main Authors: Hashimoto, Ikuo, Watanabe, Kazuhiro
Format: Article
Language:English
Subjects:
Adolescent
Child
Child, Preschool
echocardiography
Echocardiography, Doppler
Female
Heart Ventricles - diagnostic imaging
Humans
Infant
Infant, Newborn
Male
Mitral Valve - diagnostic imaging
Mitral Valve - physiology
myocardial function
Prospective Studies
Stroke Volume - physiology
systolic function
Ventricular Function, Left - physiology
wall motion
Young Adult
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Summary:Background The purpose of our study was to explore the pumping mechanism of the left ventricle (LV) and to examine the role of longitudinal LV contraction in LV stroke volume (LVSV) compared to a radial LV contraction. Methods and Results We examined 890 consecutive children without structural heart disease including 395 patients with a history of Kawasaki disease (KD). We measured the mitral annular plane systolic excursion (MAPSE), the LV end‐diastolic and end‐systolic dimension (LVDd), the LV radial wall displacement (LVRWD) and the LV stroke volume (LVSV). The LVSV was determined by the Doppler method. The z‐values of MAPSE, LVDd, LVRWD and LVSV were calculated by the mean values and standard deviations (SDs) based upon BSA every 0.1 m2. We evaluated the relationship between the z‐LVSV and the geometrical factors. The z‐value of the MAPSE was the most powerful determinant for the z‐values of the LVSV of all of the geometrical factors (β = 0.36, P 
ISSN:0742-2822
1540-8175
DOI:10.1111/echo.13016