- The subject will have elective ( the subject chooses, but does not have to undergo surgery for an emergency) open unilateral inguinal herniorraphy (hernia repair), using mesh Lichtenstein surgery procedure and under general anesthesia and fentanyl or sufentanil/propofol initiation and sevoflurane or isoflurane maintenance plus local anesthetic infiltration at the conclusion of surgery. Study surgery should be anticipated to be in the morning.