The effect of intrathecal Midazolam in the severity of pain in Cesarean Section: a randomized controlled trial?

INTERVENTION: Bupivacaine (12.5 mg) plus normal saline (0.5‐1 ml) will used in control group (62 patients),intratechally. Intervention 1: The intervention group(62 patients) will received Bupivacaine (12.5 mg) plus intrathecal Midazolam (0.13 mg/kg) intratechally. Intervention 2: Bupivacaine (12.5 mg) plus normal saline (0.5‐1 ml) will used in control group (62 patients),intratechally. Placebo The intervention group(62 patients) will received Bupivacaine (12.5 mg) plus intrathecal Midazolam (0.13 mg/kg) intratechally. Treatment ‐ Drugs CONDITION: Delivery by elective caesarean section Pain in caesarean section. ; Delivery by elective caesarean section PRIMARY OUTCOME: Severity of pain. Timepoint: 5 min, 15 min, 30 min 1 hour, 2 hour and 4 hour aftercaesarean section. Method of measurement: Verbal Numerical Rating Scale. INCLUSION CRITERIA: Inclusion criteria included: No presence of severe spinal lesion, No presence of abscess or infection of skin and soft tissue in the location of needle insertion, No presence of sever anxiety and restlessness, No presence of Central Nervous System lesion, No presence of peripheral nerve lesion, No presence of significant mental disorders or drug abuse, Age 18‐45 year. Exclusion criteria: severe spinal lesion, abscess or infection of skin and soft tissue in the location of needle insertion, sever anxiety and restlessness, Central Nervous System lesion, presence of peripheral nerve lesion, presence of significant mental disorders or drug abuse. Age less than 18 or more than 45 years old.