Neonatal Evaluation of Norepinephrine Infusion in Spinal Anesthesia for Cesarean Section

This retrospective study aims to evaluate the fate of children born by cesarean section under spinal anesthesia with or without norepinephrine as vasopressor support for anesthesia. The main objective is to compare the initial Apgar score. The records of patients who received norepinephrine are compared to those without norepinephrine. To limit the biases of this type of study, the investigators will apply a propensity score that will include as a variable: age, ASA score, comorbidity, urgency. The patients analysed correspond to the period 2016-2017.

Inclusion Criteria: * age \> 18 * Spinal Anesthesia for Cesarean Section Exclusion Criteria: * sub epidural cesarean section * contraindication to spinal anesthesia (allergy, severe heart disease, coagulopathy)