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Study aim
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Comparison of the effect of adding dexmedetomidine with dexamethasone to bupivacaine in transverse abdominal plane block on pain intensity, hemodynamic parameters and other outcomes after laparoscopic cholecystectomy surgery.
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Design
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Clinical trial with a control group, with parallel groups, double-blind, randomized, phase 2 on 111 patients. Excel software was used for Blocked Randomization.
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Settings and conduct
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It will be carried out in the Imam Khomeini Educational-Therapeutic Hospital of Sari in Mazandaran province. In this study, the patient and the final evaluator will not know about the allocation method (double-blind).
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Participants/Inclusion and exclusion criteria
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Physical status of ASA class I and II, age between 18-65 years and exclusion conditions: patient refusal to participate. Neuromuscular diseases (for example, myopathy, myasthenia gravis). Hematological diseases, bleeding or coagulation disorders. Local skin infection and Sepsis at the site of the block. Known hypersensitivity to the study drugs. Morbid obesity (BMI > 35), sleep apnea or any other sleep disorder, history of alcoholism or drug addiction, any uncompensated systemic disease, other mental or emotional problems.
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Intervention groups
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Control group = patients will receive 17 ml of 0.25% bupivacaine + 3 ml of 0.9% saline in a total volume of 20 ml per side
Dexamethasone group: patients will receive 17 mL of 0.25% bupivacaine + dexamethasone (4 mg) diluted in 3 mL of 0.9% saline in a total volume of 20 mL per side.
Dexmedetomidine group = patients will receive 17 ml bupivacaine 0.25% + dexmedetomidine (1 µg/kg) diluted in 3 ml saline 0.9% in a total volume of 20 ml on each side.
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Main outcome variables
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Pain intensity, nausea, sedation