Brain Oxygenation in Newborns Due to Neuroaksial Methods

Inclusion Criteria: * Pregnant women between the ages of 18-35 and newborns after cesarean section * Newborns born \>37 weeks of gestation * ASA II pregnant women Exclusion Criteria: * Previous local anesthetic allergy * Those with bleeding diathesis disorder * Having a mental disorder * Those who are allergic to the drugs used * Patients who did not consent to participate in the study * Height \<1.55 meters. or \>1.70 meters. * Presence of infection in the block area * Body mass index \>35 kg/m² * Those with gestational hypertension and SAP\>140 mmHg or DAP\>90 mmHg in three pre-pregnancy measurements * Known presence of fetal anomaly * Those with known placenta pathology * Those with a history of fetal anomaly and abnormal birth in previous pregnancies