Fentanyl Versus Morphine in Spinal Anesthesia for Caesarian Section - Study on Analgesia, Side Effects and Patient 's Satisfaction

Intrathecal morphine and fentanyl are used for anesthesia and perioperative pain management in caesarian section. Despite the fact that spinal Fentanyl is better tolerated, might not be enough for postoperative pain control. Morphine offers an improved analgesia but might be not tolerated due to a higher incidence of side effects, especially nausea and vomiting. This is a prospective, randomized, double-blind, parallel study including 80 parturients scheduled for elective CS. Spinal anesthesia is consisting in bupivacaine (7.5 - 10 mg in relation to height) and either fentanyl 25 mcg (F group) either morphine 100 mcg (m group). It will be assessed intraoperative and postoperative pain scores, the incidence of sides effects, patient's satisfaction and systemic opioids consumption.