 After the procedure, all patients will be treated with a combination of aspirin 100 mg once daily and clopidogrel 75 mg once daily for three months. After three months, a control TEE will be done. If the TEE finding is satisfactory i.e., the absence of a thrombus on the device, and the absence of peri-device leakage or a leakage line of less than 5 mm, and a satisfactory position of the device as assessed by the surgeon, the clopidogrel will be discontinued, however, the aspirin 100 mg, once daily will be continued. Additional transesophageal echocardiographies are not planed unless indicated by the clinical status of the patient. 