Relevance of Veinous Lactates to Predict Postoperative Complications in Children 0-1 Years

This study will investigate if the dosage of veinous lactate at the end of a surgical procedure is related to post-operative complications occurring within 3 months in young infants aged 0-1 years. Blood samples are acquired routinely before emergence of general anesthesia, from the IV line put in place for anesthesia. The investigators hypothesized that elevated lactates would be associated with more postoperative complications in this population, as is the case in adults.