This is a retrospective chart review. The objective of the current study is to determine the analgesic efficacy and side effect profile of intravenous acetaminophen when administered to infants undergoing pyloromyotomy. In addition, recovery characteristics of infants who were administered intravenous acetaminophen will be compared to infants who did not receive intravenous acetaminophen to determine if there were any appreciable differences with regard to postoperative discomfort, PACU time, time to oral feeds and hospital discharge.
Inclusion Criteria:
Exclusion Criteria: