Hypotension is the most frequent side effect of intrathecal anesthesia, with a found incidence of more than 80%. With a frequency of between 40% and 60% in patients undergoing surgery, Perioperative shivering is a serious consequence that frequently follows neuraxial anesthesia. This study aimed to determine the multiple advantages of intravenous minimal dose ketamine for intrathecal anesthesia in patients undergoing cesarean delivery

126 female patients undergoing cesarean deliveries, ASA-(II and III) and 21-40 ys old selected from an attendee of outpatient clinics of the Anesthesia Department. Two groups of patients were random to group K (63 patients): Received 0.3 mg/kg of ketamine IV diluted to 10 ml followed by infusion 0.1 mg/kg/hr. as 20 ml solution, group C (Controlled) (63 patients): Received 10 ml of normal saline followed by infusion of 0.1 ml/kg/hr. as 20 ml solution.

Inclusion Criter

1. Female patients and full-term,
2. aged between (21 and 40) y. Old.
3. (ASA)-II or III, and undergoing a cesarean section.

Exclusion criteria:

1. Twins and preterm birth.
2. Hypertensive patients and preeclamptic patients.
3. Morbidly obese patients.
4. Spinal anesthesia contraindication as the patient refused, severe mitral or tricuspid stenosis and local sepsis.