Intravenous Ketamine and Postoperative Pain Following Cesarean Section.
Study Details
Study Description
Brief Summary
The purpose of this study is to investigate the analgesic effect of low-dose intravenous ketamine in pregnant mothers undergoing cesarean section under Bupivacaine spinal anesthesia.
Condition or Disease | Intervention/Treatment | Phase |
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Phase 2 |
Detailed Description
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No premedication will be given, and patients will be monitored by electrocardiogram, non-invasive arterial blood pressure, and pulse oximetry when they entered the operating room.
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18 gauge IV cannula will be inserted and all patients will be preloaded with 10 ml/kg of lactate ringer over 20 min period.
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All participants will have spinal anesthesia using bupivacaine. The dose of the drug, as well as the method of injection will be identical for all individuals; 10 mg (2 cc 0.5%), in the L4-L5 space using needle 25 G, midline, with the patient in a sitting position.
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After administering bupivacaine, and prior to surgery the height of the sensory block will be assessed bilaterally (complete loss of sensation to ice) in a ascending fashion starting from T12 dermatome.
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Once adequate anesthesia to at least T6 dermatome will be achieved, the operation will be allowed to begin. When systolic blood pressure decrease to < 90 mmHg, or 30% of the pre-anesthetic blood pressure, it will be corrected by administering 5 mg ephedrine.
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Patients will be asked to report any intraoperative pain using visual pain score(VPS)of 0(no pain) 10(worst pain).
Study Design
Arms and Interventions
Arm | Intervention/Treatment |
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Active Comparator: Ketamine group will receive 0.25 mg/kg intravenous ketamine diluted with normal saline to 20 ml delivered over 10 minutes. |
Drug: Ketamine
will receive 0.25 mg/kg intravenous ketamine diluted with normal saline to 20 ml delivered over 10 minutes.
Other Names:
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Placebo Comparator: Control group will receive intravenous 20 ml of normal saline, delivered over 10 minutes. |
Other: Normal saline
will receive intravenous 20 ml of normal saline, delivered over 10 minutes.
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Outcome Measures
Primary Outcome Measures
- • Number of Subjects Requiring Supplemental Analgesia [24 hours postoperative]
Secondary Outcome Measures
- Cumulative morphine/paracetamol [24 hours postoperative]
- Number of subjects reporting nausea, vomiting [24 hours postoperative]
Eligibility Criteria
Criteria
Inclusion Criteria:
- Eligible women ASA class 1 and 2, are at term (≥37 week gestation), Scheduled for elective cesarean section whose anesthetic plan is for spinal anesthesia with Bupivacaine and intravenous pethidine and paracetamol for post operative analgesia.
Exclusion Criteria:
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• Body mass index ≥40 kg/m2,
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Known allergy to any of the study medications,
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Contraindication to the spinal anesthesia,
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History of substance abuse,
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History of hallucinations,
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Chronic opioid therapy,
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Chronic pain.
Contacts and Locations
Locations
Site | City | State | Country | Postal Code | |
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1 | Assiut university faculty of medicine | Assiut | Egypt |
Sponsors and Collaborators
- Assiut University
Investigators
- Study Chair: Israa M Sayed, Assiut University
Study Documents (Full-Text)
None provided.More Information
Publications
- IRB0000871238