Background: Fasting, anesthesia and surgery lead to metabolic stress response. Increase of cortisol level lead to insulin resistance and hyperglicemic state has significant effect to the wound healing and increase morbidity and mortality to the patient undergoing surgery. The aim of this research is to prove that preoperative oral glucose loading can decrease metabolic stress response and also the difference effect on preoperative oral glucose that given twice and once time to decrease metabolic stress response in patient undergoing major oncology surgery.

Laparoscopic surgery has several advantages compared to a regular surgical procedures. This technique can reduce the stress of surgery, reduce the need for postoperative analgesia, decreased respiratory and wound complications, lowering long hospitalization, including in the intensive therapy, and the patient can go back to eat quickly. The magnitude of changes in vital signs that occur will be influenced by the patient's age, cardiovascular function, and anesthetic agents are used.Physiological changes in pediatric laparoscopic surgery were similar to adults. Children have a higher vagal tone and sometimes a stimulus to the peritoneum by gas insufflation or laparoscopic penetration and trocar can lead to bradycardia and asystole. Intra-abdominal pressure is an important determinant for maintaining cardiovascular stability during laparoscopy. Adequate relaxation needed during the duration of the surgery.

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Ketamine binds non-competitive against a phencyclidine receptors bound N-methyl-D-aspartate (NMDA), a receptor that is involved in the pathophysiology of acute pain. Ketamine has been used as an intravenous anesthesia, analgesia for acute and chronic pain at a dose of subanaesthetic. Ketamine is a dissociative anesthetic produces a state with a characteristic strong analgesia, amnesia, and catalepsy. Dissociative components resulting from the effect on the limbic system and talamoneokortikal. Lowdose ketamine as known as analgesia dose ketamine or subanestesia dose is 0.2 to 0.75 mg / kg IV. At low doses, ketamine does not increase the effect psychomimetic like dissociation or deep sedation. The combination with midazolam provides satisfactory sedation, amnesia and analgesia without significant cardiovascular depression.