Examining the effects of bariatric surgery on heart disease and mortality

The Causal Effect of Bariatric Surgery on Cardiovascular Disease and Mortality

Observational Karolinska Institutet · NCT06420479

This study is trying to see if different types of weight-loss surgery can help people with obesity lower their risk of heart disease and live longer compared to those who don't have surgery.

Quick facts

Study typeObservational
Enrollment100000 (estimated)
Ages18 Years and up
SexAll
SponsorKarolinska Institutet Academic / other
Locations1 site (Stockholm)
Trial IDNCT06420479 on ClinicalTrials.gov

What this trial studies

This observational study investigates the causal effects of bariatric surgery on cardiovascular disease and mortality among individuals with obesity. It aims to determine the effectiveness of different types of bariatric surgery, specifically gastric bypass and sleeve gastrectomy, in reducing these health risks. Utilizing data from Swedish health registers, the study will compare outcomes between patients undergoing surgery and those receiving non-surgical obesity management, employing causal inference and machine learning techniques to analyze the results.

Who should consider this trial

Good fit: Ideal candidates for this study are men and women of reproductive age diagnosed with obesity who have no prior history of cardiovascular disease or cancer.

Not a fit: Patients with contraindications to bariatric surgery will not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide critical insights into how bariatric surgery can improve heart health and reduce mortality in obese patients.

How similar studies have performed: Other studies have shown promising results regarding the benefits of bariatric surgery on weight loss and related health outcomes, making this approach both relevant and potentially impactful.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Men and women of reproductive age with a diagnosis of obesity, no prior history of cardiovascular disease or cancer, and no contraindications for surgery after 1982

Exclusion Criteria:

* Contraindications to bariatric surgery

Where this trial is running

Stockholm

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Bariatric Surgery CandidateCardiovascular DiseasesMoralitybariatric surgeryMortality
Last reviewed 2026-06-10 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.