This research study will include patients undergoing esophagectomy. The purpose of this study is to determine the effectiveness of using a FDA approved monitor, the FloTrac monitor, to help determine how much fluid and blood pressure medications a patient receives during surgery to maintain a stable blood pressure.
Patients with atrial fibrillation that are scheduled for a catheter ablation procedure will be placed in one of two groups (to receive either a propofol infusion as their primary general anesthetic, or to receive inhaled sevoflurane as the primary general anesthetic). One of these two medications would be used by anesthesia during the procedure. The study will assess the outcomes of each medication.