Transcatheter atrial septal defect closure: Modified balloon sizing technique to avoid overstretching the defect and oversizing the Amplatzer septal occluder

The objective of this study was to evaluate a new technique of sizing atrial septal defects (ASDs) for transcatheter device closure. ASD closure using the Amplatzer septal occluder (ASO) device is commonly performed. Complications, including arrhythmias, pericardial effusions, and perforations, may...

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