The remainder of the operation and post-operative course will proceed per the standard of care. Post-operative pain will be evaluated daily until discharge by the vascular surgery service using the McGill pain questionnaire. Additional data collected will include age, gender, race, BMI, ASA class, length of operation, hospital length of stay, oral and parenteral narcotic pain requirements. Any adverse events will immediately be reported to the Principal Investigator and the IRB. A Medical Monitor with suitable expertise will be provided with all the study data on a monthly basis. The medical monitor will use that data especially the unforeseen adverse events and complications to ensure the study safety. The patients will be monitored and the data will be collected until six months after discharge.