Background
Nowadays percutaneous closure is prefered as treatment in pediatric ASD patients. The purposes of the study were to (a) share ten years experience of our center in percutaneous ASD closure, (b) compare the septal closure procedure using transtoracic echocardiography with the transesophageal used ones. (c) show whether transtoracic echocardiography can be sufficient in ASD closure in certain circumstances. As far as we know our study is the first study that huge number of only children patients were included in a single center.
Method
340 patients whose ASD were closed between dates December 2003-August 2013 were included in this study. Physical examinations, electrocardiograms, transtoracic echocardiography, were done before the procedure and 24 hours, 1st,3rd, 6th months after the procedure. The patients whose ASD were closed by TEE guidance compared with ones done by TTE.
Method
340 patients whose ASD were closed between dates December 2003-August 2013 were included in this study. Physical examinations, electrocardiograms, transtoracic echocardiography, were done before the procedure and 24 hours, 1st,3rd, 6th months after the procedure. The patients whose ASD were closed by TEE guidance compared with ones done by TTE.

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