2008•Journal of Jinan UniversityRequires access

Value of left ventricular flow propagation velocity by color M-mode Doppler sonography for left ventricular diastolic function of newborns

Luo Yan-zhi

Abstract

Aim: To investigate the value of left ventricular flow propagation velocity(Vp) by color M-mode Doppler(CDM)for left ventricular diastolic function of early newborns(a week after birth).Methods: Healthy early neonates(n=104) and asphyxial neonates with myocardial damage(n=56) were measured Vp by CDM.Results:(1)The normal range of left ventricular diastolic function index(Vp) was 27～47 cm/s.(2)Vp of the hypoxial neonates with myocardial damage were significantly lower than that of normal neonates.(3)When conventional Doppler indices were unavailable,Vp could be accurately available.Conclusion:Vp measured by color M-mode Doppler sonography can accurately evaluate left ventricular diastolic function of early neonates.

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Key concepts: Cardiology, Diastolic function, Diastole, Doppler effect, Medicine, Internal medicine, Doppler echocardiography, Color doppler