Researcn On The Assessment Of The Letf Heart Function Of The Patients With Rheumatic Heart Disease And Chronic Fibrillation Atrial By The VVl Technique

Objective：Practice of assessment of the left heart myocardial systolic and diastolicfunction of the patients with rheumatic heart disease and chronic fibrillationatrial by technique of the Velocity Vector imaging．Data of ordinary person wasobtained as a comparison to reveal the heart functional characteristics and thechange of the heart function．Methods：75patients with rheumatic heart disease and chronic fibrillation atrial rtic(during2010．9--2011．12) were observed．Another75ordinary people wereselected as a contrast group by corresponding sex and age． All that alwayshave coronary heart disease, hypertension, diabetes, hyperthyroidism,atrioventricular block, mitral valve or aortic valve operation history,rheumatoid joint valve disease, obvious mitral stenosis and reverse flow, aorticstenosis and reverse flow, chronic obstructive pulmonary disease patients wereruled out. Application software VVI measured five cardiac cycle myocardial’s16long axis myocardial speed, strain and strain rate, the application of statisticsanalysis of the differences between the two groups.Results：Compared with the control, the systolic myocardial speed, systolic anddiastolic Period cardiac muscle strain rate, systolic and diastolic strain earlymyocardial obviously lower than in control group (P <0.01), diastolic straintwo groups of comparisons late not statistically significant (P>0.05). Betweenthe two groups left ventricular ejection fraction (EF) difference was statistically significant (P>0.05). In the normal control group and observed in leftventricular myocardial longitudinal systolic velocity basal segment from peakto XinJian section is gradually reduce the trend.Conclusion：In LVEF, FS are normal rheumatic heart disease mild mitral stenosiswith chronic heart patients with af the long axis systolic function decline hasoccurred. VVI technology application that early and accurate found rheumaticheart disease mitral stenosis of the patients of myocardial function smallchange, for early diagnosis of myocardial movement function abnormalprovides a new reliable tool for clinical evaluation left ventricular function anda effective method to provide.