Postoperative nausea, vomiting and pain after bariatric surgery in Sweden

Is this trial a fit for you?

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This is an exploratory observational study linking two national registries (SPOR and SOReg) to describe early postoperative nausea, vomiting, and pain in the PACU after primary bariatric surgery. It uses registry data from adults undergoing primary bariatric procedures between 2018 and 2027 across Swedish centers. The study tests whether total intravenous anesthesia or regional nerve blocks are associated with lower risk of PONV or pain, whether preoperative quality of life influences risk, and whether PACU symptoms predict complications up to one year post-surgery. Separate hypotheses are analyzed for PONV and for pain, with primary outcome focused on the PACU period. The project is led by Umeå University with collaboration from regional health authorities and the Scandinavian Obesity Surgery Registry.

Why it matters

Who can join: the full rules

Inclusion Criteria:

* Age 18 years or older
* Primary bariatric surgery registered in SOReg during 2018-2027

Exclusion Criteria:

* Revision bariatric surgery
* If more than one bariatric operation is registered for the same patient, only the primary operation is included

Where it's running

• Sundsvall Hospital, Department of Anaesthesia and Intensive Care
  Sundsvall, Sweden Recruiting
• Umeå University, Department of Diagnostics and Intervention
  Umeå, Sweden Recruiting

Study contacts

• Principal investigator: Jakob Walldén, MD, PhD — Umeå University
• Study coordinator: Jakob Walldén, MD, PhD
• Email: jakob.wallden@umu.se
• Phone: +46 60 14 52 55

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How to take part

1. Review the eligibility criteria above with your treating physician.
2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.