Abstract
Purposes: To evaluate the characteristics of the septal defects, especially the rims by using transthoracic echocardiography and by trans-oesophageal echocardiogram, evaluated morphology and function of right ventricle by echocardiography before and after the intervention of atrial septal closure. Subjects and Methods: We conducted a study on 42 patients (mean age 36.3) with successful percutanous atrial septal defect. All patients were performed transthoracic echocardiography, transesophageal echocardiography, Doppler pulse wave, M-mode and tissue Doppler before the intervention and 1 day after the intervention. Results: The total number of patients studied was 42. The average age was 36.3. Female patients accounted for 76.2% and male patients accounted for 23.8%. Average value of the atrial septal hole diameter is 20.5 mm by tranthoracic echocardiography and 23.6 mm by transesophageal echocardiography, 28.4 mm measured balloon and the average Amplatzer diameter was 32.6mm. Aortic rims of most of patients were short, rims of atrial septal decfect measured by transesophageal echocardiography were larger than measuring by tranthoracic echocardiography. After closing atrial septal hole, right ventricular size was improved, especially horizontal diameter and basal diameter of right ventricular, right ventricular longitudinal diameter improved slower. Systolic pulmonary artery pressure decreased after intervention.Systolic and diastolic of right ventricle were improved with pre-intervention TAPSE was lower than after intervention, the pe-intervention index E/E’ was lower after intervention, as well as the parameters of DT and IVRT improved than before the intervention. Conclusion: Currently atrial septal closure is the first choice in the treatment of atrial septaln defect. In this study we found that trans-oesophageal echocardiogram images were better than transthoracic echocardiography and especially evaluating rims of arterial septal dedects and thanks to that helping effective indication of atrial septal closures.Right ventricular morphology and function improved after intervention, but not good, probably needs more time for morphological right ventricle returning to normal and improving right ventricular function better. Key words: Atrial septal defect, right ventricle, septal closure, echocardiography, transesophageal
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