Esophageal

Atrial Septal Defect (ASD) Closure Using a Catheter-Based DeviceAn atrial septal defect is a hole in the wall (septum) between the heart’s two upper chambers (the atria). This opening can form before birth when the septum does not close completely. In many people the defect is small and causes no problems, but larger holes can allow blood to flow in the wrong direction, placing extra strain on the heart and lungs over time.When treatment is needed, many patients can have the hole closed without open-heart surgery. A thin, flexible catheter is inserted into a blood vessel (usually in the leg) and carefully guided into the heart. At the tip of the catheter is a small, folded “umbrella-like” closure device (commonly an Amplatzer or similar septal occluder). Once the device is positioned across the defect, it is released and expands into two discs, one on each side of the septum-clamping the hole shut. Over the following months, the heart’s own tissue grows over the device, permanently sealing the opening.This percutaneous (catheter-based) approach is less invasive than traditional surgery, typically involves a shorter hospital stay, and allows faster recovery for suitable patients. Open-heart surgery remains an option for very large defects, complex anatomy, or when a device cannot be safely placed.The procedure is performed by interventional cardiologists under imaging guidance (fluoroscopy and echocardiography) and has a high success rate in appropriately selected patients.