Evaluation of the Performance of Epidural Analgesia After Major Abdominal Surgery

Study Overview
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Brief Summary
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Epidural analgesia is widely used for the treatment of acute postoperative pain, and currently represents the gold standard after open major abdominal surgery. However, several studies have reported a failure rate of APT of up to 30%. Its efficacy regarding pain control during coughing and mobilization is also inconsistent, with correct analgesia found in only 60% of cases in a Scandinavian multicenter cohort. Inadequate Epidural analgesia may be associated with more postoperative complications. This finding prompts a study in our institution to evaluate the performance of epidural analgesia after major open abdominal surgery.

Detailed Description
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Epidural analgesia is widely used for the treatment of acute postoperative pain, and currently represents the gold standard after open major abdominal surgery. However, several studies have reported a failure rate of APT of up to 30%. Its efficacy regarding pain control during coughing and mobilization is also inconsistent, with correct analgesia found in only 60% of cases in a Scandinavian multicenter cohort. Inadequate Epidural analgesia may be associated with more postoperative complications. This finding prompts a study in our institution to evaluate the performance of epidural analgesia after major open abdominal surgery. Epidural analgesia does not guarantee total control of acute postoperative pain after major open abdominal surgery. The performance of epidural analgesia could vary according to predisposing factors and postoperative days. Inadequate epidural analgesia could be associated with greater morbidity after open major abdominal surgery. In order to evaluate the performance of epidural analgesia after major open abdominal surgery, a prospective observational monocentric scheme seems relevant. The evaluation will be clinical based on questioning and a brief medical examination during the early postoperative phase of the operated patients.

Official Title
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Evaluation of the Performance of Epidural Analgesia After Major Abdominal Surgery

Conditions
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Epidural Analgesia After Major Open Abdominal Surgery

Intervention / Treatment
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* Other: postoperative pain assess


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Major abdominal surgery patient operated by laparotomy (predicted operative time ≥ 2 hours) epidural analgesia accepted Exclusion Criteria: Minor or protected patient Patients under guardianship, curatorship or safeguard of justice Pregnant or breastfeeding woman Contraindication or refusal of epidural analgesia Failure of the initial placement of the epidural catheter Major intraoperative complication requiring continued postoperative sedation

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Patients<br>Open major abdominal surgery patient (predicted operative time ≥ 2 hours) with Peridural Analgesia accepted | Other: postoperative pain assess<br>* numerical pain scale and Metameric levels of cold insensitivity<br>* Other names: numerical pain scale;|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Insufficient epidural analgesia | Insufficient epidural analgesia will be defined by the presence of pain assessed by numerical scale > 3/10 at rest OR on coughing OR on mobilization. | day 5 | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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epidural analgesia, open abdominal surgery, postoperative pain