Postoperative Pain
Conditions
Keywords
Esmolol infusion, TAP block, cholecystectomy
Brief summary
Pain after laparoscopy differs considerably from that seen after laparotomy. Laparotomy results mainly in parietal pain (abdominal wall), where as Pain in laparoscopy results from stretching of the intra-abdominal cavity, peritoneal inflammation, and diaphragmatic irritation caused by residual carbon-dioxide in the peritoneal cavity. The transverse abdominis plane (TAP) block is a peripheral nerve block designed to anesthetize the nerves supplying the anterior abdominal wall (T6 to L1). While esmolol is an ultra-short acting intravenous β-blocker having a rapid onset and offset effect. It provides an unprecedented level of tolerability and safety in the perioperative setting. When used as an adjunct, it has been shown to improve the postoperative recovery by reducing postoperative pain intensity and intraoperative anesthetic and opioid requirements and preventing opioid-induced hyperalgesia . The mechanism of this synergistic effect is uncertain, but both pharmacokinetic and pharmacodynamics interactions with anesthetic drugs have been proposed.
Interventions
administration of a loading dose esmolol infusion 0.5 mg/kg in 30 ml isotonic saline in the IV line, followed by an IV infusion of esmolol 0.05 mg/kg/min till the completion of surgery
Sponsors
Study design
Masking description
double blinded
Eligibility
Inclusion criteria
1. ASA grade I/II patients undergoing laparoscopic cholecystectomy . 2. Age group of 18 -60 years. 3. Patients giving valid informed consent.
Exclusion criteria
1. Patient refusal 2. Patients belonging to ASA grade III and grade IV . 3. Coagulation disorders. 4. Patients with known allergy to one of the used drugs. 5. Extreme obesity (BMI \>35) 6. Patients with cardiac, pulmonary, hepatic or renal disorders 7. Pregnancy 8. Drug abusers
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| pain rescue-analgesia consumption | 24 hours postoperative | . If pain score exceed 3, rescue analgesia 5 mg bolus of morphine will be administered intravenous to achieve satisfactory pain control that can be repeated every 4-6 hours. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Visual analogue pain score | every 0,2,4,6,12, up to 24 hours postoperative | scales from zero (no pain) to ten (unbearable pain) |
| Intraoperative hemodynamic data | 30 minutes after induction of anesthesia | mean arterial blood pressure and heart rate |
| Postoperative nausea and vomiting | 24 hours postoperative | A three-point rating scale (1: no postoperative nausea and vomiting, 2: nausea without vomiting, 3: nausea with vomiting. Ondansetron 4 mg will be available if required. |
| Patient satisfaction | 24 hours postoperative | using a 5-point Likert scale (1 was very unsatisfied, 2- unsatisfied, 3- unsure, 4- satisfied, and 5- very satisfied). |
Countries
Egypt