 After randomization, the spinal analgesia group S will receive 1000 cc Ringers Lactate solution. Additional monitoring will include ECG, non-invasive blood pressure and pulse oximetry. In the sitting position, spinal anesthesia will be performed using a pencil-point needle. 7.5 mg plain bupivacaine Astra will be injected intrathecally. The patient will be reclined in a left lateral tilt, and the table will be adjusted in order to encourage the spreading of the anesthetic drug to the T6 level. Once anesthesia is attained, the ECV procedure will be performed. 