The purpose of this study is to compare two standard methods of pain control management used at Spectrum Health for patients undergoing major surgery. The two methods being compared are the thoracic epidural and the TAP block. The thoracic epidural method involves medication being given through a patient's back and the TAP block involves medication being given through a patient's abdomen (belly). The investigators will compare side effects experienced by the patients that take part in this study, including a change in blood pressure, as well as the patients' opinions about their pain management experience after surgery.