Assessment of the color M-mode echocardiography on right ventricular diastolic functionin fetuses with umbilical cord around neck

LIU Hai-xia; WANG Lin; SHI Wei; WANG Yue-heng

Journal of China Clinic Medical Imaging ›› 2015, Vol. 26 ›› Issue (6) : 417-420.

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Assessment of the color M-mode echocardiography on right ventricular diastolic functionin fetuses with umbilical cord around neck

LIU Hai-xia1, WANG Lin1, SHI Wei1, WANG Yue-heng2

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Abstract

Objective: To investigate the diastolic function of right ventricle of fetuses with umbilical cord around neck, and to analyze the changes of propagation velocity(Vp) of the right ventricle, then to discuss the clinical value of color M-mode echocardiography in quantitatively evaluating ventricular diastolic function in fetuses. Methods: The experimental group consisted of fetuses with umbilical cord around neck in 22 to 38 weeks of gestational age, including 60 cases; The control group consisted of normal fetuses without umbilical cord around neck in 22 to 38 weeks of gestational age, including 60 cases. And analyze the changes of Vp of the right ventricle by color M-mode echocardiography. Results: The Vp of right ventricular showed significantly different between the experimental group and control group(P<0.05), Vp of the right ventricle in fetuses with umbilical cord around neck was significantly lower than the control group, indicating that right ventricular diastolic function reduced in fetuses with umbilical cord around neck. Vp of right ventricular has no significant difference in different gestational fetuses with umbilical cord around neck(P>0.05), indicating that right ventricular diastolic function has no significant changes with gestational age increasing in fetuses with umbilical cord around neck. Conclusion: Vp of the right ventricle in fetuses with umbilical cord around neck was significantly lower than the control group, indicating that right ventricular diastolic function reduced in fetuses with umbilical cord around neck. Vp of right ventricular has no significant difference in different gestational fetuses with umbilical cord around neck(P>0.05), indicating that right ventricular diastolic function has no significant changes with gestational age increasing in fetuses with umbilical cord around neck. Vp measured by color M-mode echocardiography can better reflect the changes of right ventricular diastolic function in fetuses, which was able to provide valuable reference about the ventricular diastolic function in fetuses with umbilical cord around neck.

Key words

Ventricular function / right / Umbilical cord / Echocardiography / Doppler / color

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LIU Hai-xia;WANG Lin;SHI Wei;WANG Yue-heng. Assessment of the color M-mode echocardiography on right ventricular diastolic functionin fetuses with umbilical cord around neck[J]. Journal of China Clinic Medical Imaging. 2015, 26(6): 417-420