Intracardiac echocardiography using the AcuNav ultrasound catheter during percutaneous closure of multiple atrial septal defects.

Transesophageal echocardiography is routinely used in catheterization laboratories to guide the percutaneous closure of ostium secundum atrial septal defects. The patient is under general anesthesia, and the interatrial septum anatomy is usually well defined. Multiple atrial septal defects are, in some cases, a challenge for both the interventional echocardiographer and the interventional cardiologist, when trying to evaluate the anatomy of the defects, the strategy of closure and the correct choice of the device. We describe the usefulness of a new phased-array ultrasound-tipped catheter for intracardiac echocardiography in a case of percutaneous closure of multiple ostium secundum atrial septal defects.