About this trial
Based on randomization, patients will receive a mixture for spinal anesthesia and will be followed in the following hours for the various outcomes and for functional recovery
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
patients over 18 year of age
height over 160 cm
American Society Anesthesiologists physical status I and II
term singleton parturients
Disqualifiers
patients with inability to consent
patient refusal
contraindication to spinal anesthesia (eg, hemodynamic instability, infection at the surgery site, and neurologic defects such as transverse myelitis)
emergency cesarean delivery
Trial design
Parallel
Treatments tested in this trial
Fentanyl 1
Procedure/SurgerySpinal anesthesia with a 27- gauge Whitacre needle at the L2-3 or L3-4 intervertebral space with the patient in sitting position with hyperbaric bupivacaine 0,5 %12 mg, 100 mcg of morphine, and no fentanyl
Fentanyl2
Procedure/SurgerySpinal anesthesia with a 27- gauge Whitacre needle at the L2-3 or L3-4 intervertebral space with the patient in sitting position with hyperbaric bupivacaine 0,5 %12 mg, 100 mcg of morphine, and 10 mcg of of fentanyl
Fentanyl 3
Procedure/SurgerySpinal anesthesia with a 27- gauge Whitacre needle at the L2-3 or L3-4 intervertebral space with the patient in sitting position with hyperbaric bupivacaine 0,5 %12 mg, 100 mcg of morphine, and 20 mcg of fentanyl
Treatment groups
Trial outcomes
Primary outcomes
Patient Controlled Analgesia morphine consumption
Patient Controlled Analgesia morphine consumption in the first 24 postoperative hours
obstetric quality of recovery score
obstetric quality of recovery score (ObsQoR-11)
Secondary outcomes
Visual Analogue Scale
pain scores after surgery (Visual Analogue Scale -VAS- where 0 is the minimum value and 10 is the maximum value. The higher is the score the worse is pain control) at 4, 12 e 24 h.
pruritus
Intraoperative and postoperative pruritus (rating 0-10 The higher is the score the worse is pruritus)
nausea and vomiting; considering it as a dichotomous variable (yes or no), without evaluating its entity
intraoperative and postoperative nausea and vomiting
intraoperative hypotension
intraoperative hypotension
Sponsors and contacts
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