Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography · 2003
Color M-mode and Doppler tissue evaluation of diastolic function in children: simultaneous correlation with invasive indices.
Сравнительное исследованиеОценочное исследованиеСтатьяНазвание и аннотация: Перевод в очереди
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Border William L, Michelfelder Erik C, Glascock Betty J, Witt Sandra A, Spicer Robert L, Beekman Robert H, Kimball Thomas R
Аннотация
OBJECTIVE: The purpose of this study was to explore the validity of diastolic indices derived from color M-mode Doppler and Doppler tissue imaging in a heterogeneous group of pediatric patients by comparing them with simultaneously obtained invasive indices of diastolic function.
METHODS: A total of 20 children undergoing left heart catheterization had echocardiographic images recorded simultaneously with high-fidelity left ventricular (LV) pressure tracings. Transmitral Doppler, pulmonary vein Doppler, Doppler tissue imaging, and color M-mode Doppler flow propagation velocity were recorded. LV peak negative dP/dt, the time constant of isovolumic relaxation, and LV end-diastolic pressure were compared with the echocardiographic indices.
RESULTS: The ratio of peak E-wave mitral velocity/propagation velocity correlated significantly with LV end-diastolic pressure (r = 0.71; P <.001). Propagation velocity correlated with the time constant of isovolumic relaxation (r = -0.56; P =.01) and peak negative dP/dt (r = 0.50; P <.03). Septal mitral annular myocardial velocity correlated significantly with the time constant of isovolumic relaxation (r = -0.58, P =.01).
CONCLUSION: The newer diastolic indices derived from color M-mode Doppler and Doppler tissue imaging appear to be a helpful adjunct in the noninvasive assessment of diastolic function in children.
METHODS: A total of 20 children undergoing left heart catheterization had echocardiographic images recorded simultaneously with high-fidelity left ventricular (LV) pressure tracings. Transmitral Doppler, pulmonary vein Doppler, Doppler tissue imaging, and color M-mode Doppler flow propagation velocity were recorded. LV peak negative dP/dt, the time constant of isovolumic relaxation, and LV end-diastolic pressure were compared with the echocardiographic indices.
RESULTS: The ratio of peak E-wave mitral velocity/propagation velocity correlated significantly with LV end-diastolic pressure (r = 0.71; P <.001). Propagation velocity correlated with the time constant of isovolumic relaxation (r = -0.56; P =.01) and peak negative dP/dt (r = 0.50; P <.03). Septal mitral annular myocardial velocity correlated significantly with the time constant of isovolumic relaxation (r = -0.58, P =.01).
CONCLUSION: The newer diastolic indices derived from color M-mode Doppler and Doppler tissue imaging appear to be a helpful adjunct in the noninvasive assessment of diastolic function in children.
Предметные рубрики MeSH
AdolescentAdultAortic ValveCardiac CatheterizationCardiomyopathy, HypertrophicChildChild WelfareChild, PreschoolDiastoleEchocardiographyEchocardiography, Doppler, ColorEchocardiography, Doppler, PulsedFemaleHeart AtriaHeart Defects, CongenitalHeart RateHeart VentriclesHumansInfantInfant WelfareInfant, NewbornMaleMucocutaneous Lymph Node SyndromeObserver VariationOhioPulmonary VeinsReproducibility of ResultsStatistics as TopicStroke Volume