Post operative data This is data that relates to the wake up of the patients based on the three groups studied. The evaluation at wake-up and the results from the Aldrete score, the SOMCT, RLAS, and the MMSE according to the order specified in the discription of the protocol. It is important to indicated episodes of protracted hypo or hypertension and episodes of hypoxia (SpO2 < 95%) as well as the intensity of pain using the VAS (and treatment?).