NCT07075302Completed
OFA vs OBA in Bariatric Surgery
Comparison of Postoperative Morphine Requirements Between an Opioid-Based and an Opioid-Free Anesthesia Technique in Morbidly Obese Patients Undergoing Bariatric Surgery
Source: ClinicalTrials.gov · Last updated 20 Jul 2025
Brief summary (registry, in English)
This study compares two different anesthesia techniques in patients with obesity undergoing bariatric surgery: one that includes opioids (OBA), and one that avoids them completely (OFA). The main goal is to determine whether avoiding opioids during surgery leads to lower postoperative morphine requirements and fewer side effects. Researchers reviewed medical records of 70 patients who had bariatric surgery between June 2022 and December 2023 at a hospital in Spain. The study evaluates pain levels, sedation, complications, and total morphine use in the first 48 hours after surgery.
- Status (registry)
- Completed
- Study type
- Observational
- Enrollment
- 70 (actual)
- First submitted
- 11 Jul 2025
- Start date
- 1 Jun 2022
- Primary completion date
- 31 Dec 2023
- Lead sponsor
- Hospital HM Nou Delfos
- Diseases
- Obesity
- NCT number
- NCT07075302
What you commit to
- Study type: Observational
- Participants enrolled: 70
- From 1 Jun 2022 to the primary completion date, 31 Dec 2023
- 1 site in 1 country
- Visits and tests: ask the trial team, the registry does not list them
Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.
Who cannot take part
Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.
Prior treatment
- Active alcohol or drug abuse
- Postoperative morphine use exceeding institutional norms for bariatric surgery
Other illness
- Known allergy to any anesthetic drug used in the study
- Severe hepatic (e.g., cirrhosis with portal hypertension) or renal insufficiency
- Uncontrolled or severe psychiatric illness
Other
- Chronic pain patients on high-dose opioids
- Untreated coagulopathy
- Intraoperative complications requiring deviation from planned anesthetic technique
Who the study is looking for
- Body Mass Index (BMI) ≥ 30 kg/m²
- ASA physical status II or III
- Underwent laparoscopic bariatric surgery under general anesthesia at HM Nou Delfos
- Surgery performed between June 1, 2022 and December 31, 2023
Age in the registry: 18 years to 65 years · Sex: All · Does not accept healthy volunteers
Sites (1)
Sites in registry order. Pick your city on the disease page to sort them by distance.
| Site | City | Country | Site status |
|---|---|---|---|
| Hospital HM Nou Delfos Coordinator of this site? Confirm its status | Barcelona | Spain | Unknown status |
This page is information, not medical advice. Discuss any trial with your doctor.