Prospective trial including full term parturients scheduled for a cesarean section under spinal anesthesia. patients are being randomly assigned into 2 groups:~LE group: will be positioned in 15° left tilt with leg elevation with a 30cm height pillow under the heels, this position will be hold after spinal anesthesia until fetal extraction.~Control group: will be positioned in supine with 15° left tilt. the 2 groups will receive a 10ml/kg of crystalloid co-load intravenously, and the spinal anesthesia will be performed in sitting position with the same dose of Bupivacain, morphine and sufentanil. we will record the demographic data, pre and intraoperative hemodynamic parameters, the dose of ephedrine required to treat post spinal hypotension and fetal parameters: pH and blood lactates
Prospective trial including full term parturients scheduled for a cesarean section under spinal anesthesia. patients are being randomly assigned into 2 groups:~LE group: will be positioned in 15° left tilt with leg elevation with a 30cm height pillow under the heels, this position will be hold after spinal anesthesia until fetal extraction.~Control group: will be positioned in supine with 15° left tilt. the 2 groups will receive a 10ml/kg of crystalloid co-load intravenously, and the spinal anesthesia will be performed in sitting position with the same dose of Bupivacain, morphine and sufentanil.