الفهرس 
Devellopmentt and ssttrructturre off tthe attrriiall ssepttumOnly 14 pages are availabe for public view
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Abstract
The current study was done to explore the feasibility, safety, accuracy of transcatheter closure of atrial septal defect (ASD) under transthoracic echocardiography(TTE) guidance . The current study was conducted on fifty patients referred to Tanta University Hospital Cardiology Department with the provisional diagnosis of ASD secundum type for assessment of suitability for transcatheter closure guided by transthoracic echocardiography(TTE) .