The investigators are presently using Exparel, a slow released local anesthestic, in patients undergoing minimally invasive cardiac surgery. The primary objective of this study is to assess the efficacy of EXPAREL when delivered into the thoracotomy and chest tube sites to provide prolonged postoperative analgesia in patients undergoing minimally invasive cardiac surgery. Efficacy will be assessed by: the effectiveness of analgesia as measured by the subject's overall postoperative pain scores and postsurgical analgesic use.