Abstract: Objective To explore the application of real-time three-dimensional transthoracic echocardiography combined with intraoperative transesophageal ultrasound in patients with mitral valve disease.
Methods Retrospective analysis with mitral valve parallel membrane disease mitral valve lesions (40 cases), of which 7 cases of children patients, 33 patients with adult, respectively in the preoperative and postoperative march into the group of patients after the left front diameter(LAAPD), left ventricular ejection fraction(LVEF), left ventricular end-diastolic diameter(LVEDD), left ventricular ejection fraction(LVEF) %, mitral valve lesions, and so on and so forth.
Results Compared with the preoperative, and in patients with postoperative children before and after 3 months of left atrium diameter(LAAPD), left ventricular end-diastolic diameter (LVEDD) were significantly decreased, and only in patients with postoperative LVEF value increased significantly, the difference was statistically significant (P＜0.05), postoperative 3 months follow-up showed that when the children and the number of cases of postoperative mitral regurgitation in patients with preoperative significantly reduce the difference was statistically significant(P＜0.05),MR grade was positively correlated with surgical procedure.
Conclusion Real-time three-dimensional transthoracic echocardiography combined with intraoperative esophageal ultrasound has the advantages of non-invasive, simple operation and time-saving, playing an extremely important value in the application of mitral valve disease, and can accurately display the location and degree of valvular disease and guide the selection of operative methods.

Key words: mitral valve insufficiency； echocardiography, echocardiography