Actively Recruiting

Phase 4
Age: 40Years - 85Years
All Genders
ID04894864

Effect of a Perioperative Opioid Free Anesthesia-Analgesia Strategy on Surgical Stress Response in Elective Open Abdominal Aortic Aneurysm Repair: A Randomized Study

Led by University of Crete · Updated on 2025-01-07

40

Participants Needed

1

Research Sites

104 weeks

Total Duration

On this page

Sponsors

U

University of Crete

Lead Sponsor

U

University Hospital of Crete

Collaborating Sponsor

AI-Summary

What this Trial Is About

Open abdominal aortic aneurysm (AAA) repair is a high-risk surgery that triggers strong endocrine and metabolic stress responses, leading to inflammation and activation of immune pathways. This trial evaluates whether a multimodal opioid-free anesthesia-analgesia (OFA-A) approach can reduce this surgical stress compared to conventional opioid-based anesthesia-analgesia (OBA-A). The study focuses on measuring inflammatory markers and patient outcomes after elective open AAA repair. Two anesthesia strategies are compared: one using opioids and standard drugs, and the other using a combination of drugs without opioids, including pregabalin, ketamine, dexmedetomidine, lidocaine, dexamethasone, dexketoprofen, paracetamol, and magnesium sulfate. Both approaches involve premedication, induction, maintenance, wound infiltration, sedation in intensive care, and postoperative pain control with patient-controlled analgesia pumps. Each regimen aims to manage pain and surgical stress through different drug combinations during and after surgery. Participants aged 40 to 85 undergoing elective open AAA repair will be involved. The study includes detailed monitoring of inflammatory markers such as IL-6, IL-8, IL-10, TNF-a, cortisol, and others at multiple time points before and after surgery. Hemodynamic stability and postoperative pain assessments are also conducted. Researchers will track ICU and hospital stay length to evaluate overall patient outcomes and safety throughout the perioperative period.

CONDITIONS

Brief Title

Opioid Free Anesthesia-Analgesia Strategy and Surgical Stress in Elective Open Abdominal Aortic Aneurysm Repair

Who Can Participate

Age: 40Years - 85Years
All Genders

Eligibility Criteria

Eligible

You may qualify if you...

  • Patient consent
  • Age between 40 and 85 years old
  • Patients undergoing elective open abdominal aortic infrarenal aneurysm repair
Not Eligible

You will not qualify if you...

  • Immunocompromised patients
  • Patients with active infection
  • Reoperation on the aorta
  • Inflammatory bowel disease
  • Malignancy
  • Chronic inflammatory conditions such as rheumatoid arthritis or psoriatic arthritis
  • Chronic corticosteroid or immunosuppressive drug use
  • Intraoperative transfusion with more than 2 units of packed red blood cells

AI-Screening

AI-Powered Screening

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Your Study Journey

Screening

Duration - 2 to 4 weeks

Participants are screened for eligibility to participate in the trial.

1 visit (in-person)

Treatment

Duration - Up to 8 hours (duration of surgery and immediate postoperative ICU sedation)

Participants receive either an opioid-based or opioid-free multimodal anesthesia-analgesia strategy during their elective open abdominal aortic aneurysm repair surgery. This includes anesthesia induction, maintenance, and postoperative analgesia during ICU stay and surgical ward care.

1 surgical and ICU stay

Post-operative Follow-up

Duration - 3 days

Participants are monitored for up to 3 days postoperatively for pain assessments, analgesic requirements, and recovery including ICU and hospital discharge length of stay.

Daily visits for 3 days post-surgery

Trial Site Locations

Total: 1 location

1

University of Crete

Heraklion, Crete, Greece, 71110

Actively Recruiting

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Research Team

G

George Papastratigakis, MD

G

Georgios Stefanakis, MD

How is the study designed?

Study Type

INTERVENTIONAL

Masking

DOUBLE

Allocation

RANDOMIZED

Model

PARALLEL

Primary Purpose

BASIC_SCIENCE

Number of Arms

2

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Published Research Related To This Trial

Cytokines as biomarkers of inflammatory response after open versus endovascular repair of abdominal aortic aneurysms: a systematic review.

Diamantis I Tsilimigras, Fragiska Sigala, Georgios Karaolanis...

https://pubmed.ncbi.nlm.nih.gov/29770795

Comparison of open transabdominal AAA repair with endovascular AAA repair in reduction of postoperative stress response.

K Salartash, W C Sternbergh, J W York...

https://pubmed.ncbi.nlm.nih.gov/11221945

Combined general-epidural anesthesia with continuous postoperative epidural analgesia preserves sigmoid colon perfusion in elective infrarenal aortic aneurysm repair.

Venetiana Panaretou, Ioanna Siafaka, Dimitrios Theodorou...

https://pubmed.ncbi.nlm.nih.gov/23493852

Surgically positioned paravertebral catheters and postoperative analgesia after open abdominal aortic aneurysm repair.

Samuel Jessula, Logan Atkinson, Patrick Casey...

https://pubmed.ncbi.nlm.nih.gov/31153699