Chinese Journal of Clinicians, Vol 6, No 7 (2012)

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A study on the changes of atrial septal motion speed after mitral valve replacement using omni-directional M-mode echocardiography

XIONG Li-yan, GUO Wei

Abstract


  Objective To assess left atrium function by measured atrial septal motion speed changes using omni-directional M-mode echocardiography(OME)before and after mitral valve replacement.Methods Forty-nine patients underwent mitral valve replacement surgery were enrolled with the age 34-69 years;mean age(54.27±9.30)years;23 men,26 women.Examed all patients by transesophageal echocardiography pre- and post-operation immediately.Systolic and diastolic atrial septum motion peak speed was measured by OME.Left atrial volume change fraction,left atrial diameter,end-diastolic volume and left ventricular ejection fraction were measured by transthoracic echocardiography.Results After mitral valve replacement surgery,atrial septum motion peak speed,left atrial volume change fraction,end-diastolic volume and left ventricular ejection fraction were higher than pre-operation(P<0.05).There were correlation between atrial septal motion peak speed and left atrial volume change fraction pre- and post-operation(r=0.389,0.354,P<0.05).Conclusions The results indicate that,atria

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Chinese Journal of Clinicians