The purpose of this study is to collect data regarding ligation of the left atrial appendage at least 12 months after surgery for patients that had exclusion of the left atrial appendage as a primary minimally invasive procedure or in conjunction with other open cardiac or minimally invasive cardiac procedures. The patient will undergo a transesophageal echocardiogram (TEE) to collect the following data: Left Ventricular Ejection Fraction; Left Atrial diameter size; confirmation of Left Atrial Appendage exclusion defined by the absence of left atrial to LAA (left atrial appendage) communication measured in millimeters and absence of LAA pocket measured in millimeters; presence of thrombus in left atrium.
The purpose of the study is to collect data regarding ligation of the left atrial appendage at least 12 months after surgery for patients that had exclusion of the left atrial appendage as a primary minimally invasive procedure or in conjunction with other open cardiac or minimally invasive cardiac procedures.