Analysis on effect of echocardiography in evaluation of neonatal left ventricular function

Objective: To explore the effect of echocardiography in evaluation of left ventricular function among neonates with common diseases. Methods: One hundred full term neonates of natural labor were selected from department of neonatology in the hospital from November 2010 to November 2013 and analyzed retrospectively,including 70 neonates with hypoxemia,22 neonates of mothers with gestational diabetes mellitus; 8 neonates with congenital hypothyroidism dysfunction; 100 full term neonates of natural labor in department of neonatology in the hospital during the same time were selected as control group; under Doppler tissue imaging model,systolic mitral annular velocity( Sa),diastolic early / late velocity( Ea,Aa),and early / late diastolic velocity ratio( Ea / Aa) in the two groups were measured; left ventricular fractional shortening( LVFS) and left ventricular ejection fraction( LVEF) were measured under M ultrasonic cardiogram model; PWD was used to measure early diastolic mitral flow and peak late diastolic velocity( Em,Am) and calculate Em / Am; isovolumetric contraction phase( ICT) + isovolumic relaxation phase( IRT),and ejection time( ET) were measured; Tei index was calculated. Results: Sa,Ea,and Ea / Aa in case group were statistically significantly lower than those in control group( P 0. 01),Aa in case group was statistically significantly higher than that in control group( P 0. 01); LVFS,LVEF,Em,Am,Em / Am case group were statistically significantly lower than those in control group( P 0. 01); left ventricular Tei index in case group was statistically significantly higher than that in control group( P 0. 01); ICT + IRT in case group was statistically significantly higher than that in control group( P 0. 01); ET in case group was statistically significantly lower than that in control group( P 0. 01). Conclusion: Compared with normal neonates,left ventricular systolic and diastolic function of neonates with common diseases decrease significantly,echocardiography can reflect change of left ventricular dysfunction sensitively.