Cited by 63Bariatric Surgery and OutcomesLiver Disease Diagnosis and TreatmentDiabetes, Cardiovascular Risks, and Lipoproteins

Association of bariatric surgery with cardiovascular outcomes in adults with severe obesity and nonalcoholic fatty liver disease

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Elsaid, Mohamed I., Li, You, Bridges, John F. P., Brock, Guy, Minacapelli, Carlos D., Rustgi, Vinod K.·2022·JAMA Network Open

Abstract

Importance: There are no approved treatments for nonalcoholic fatty liver disease (NAFLD) despite its association with obesity and increased risk of cardiovascular disease (CVD). Objective: To examine the association between bariatric surgery and CVD risk in individuals with severe obesity and NAFLD. Design, Setting, and Participants: This large, population-based retrospective cohort study obtained data from the MarketScan Commercial Claims and Encounters database from January 1, 2007, to December 31, 2017. Participants included insured adults aged 18 to 64 years with NAFLD and severe obesity (body mass index ≥40) without a history of bariatric surgery or CVD before NAFLD diagnosis. Baseline characteristics were balanced between individuals who underwent surgery (surgical group) and those who did not (nonsurgical group) using inverse probability of treatment weighting. Data were analyzed from March 2020 to April 2021. Exposures: Bariatric surgery (Roux-en-Y gastric bypass, sleeve gastrectomy, and other bariatric procedures) vs nonsurgical care. Main Outcomes and Measures: The main outcome was the incidence of cardiovascular events (primary or secondary composite CVD outcomes). The primary composite outcome included myocardial infarction, heart failure, or ischemic stroke, and the secondary composite outcome included secondary ischemic heart events, transient ischemic attack, secondary cerebrovascular events, arterial embolism and thrombosis, or atherosclerosis. Cox proportional hazards regression models with inverse probability treatment weighting were used to examine the associations between bariatric surgery, modeled as time varying, and all outcomes. Results: The study included 86 964 adults (mean [SD] age, 44.3 [10.9] years; 59 773 women [68.7%]). Of these individuals, 30 300 (34.8%) underwent bariatric surgery and 56 664 (65.2%) received nonsurgical care. All baseline covariates were balanced after applying inverse probability treatment weighting. In the surgical group, 1568 individuals experienced incident cardiovascular events compared with 7215 individuals in the nonsurgical group (incidence rate difference, 4.8 [95% CI, 4.5-5.0] per 100 person-years). At the end of the study, bariatric surgery was associated with a 49% lower risk of CVD (adjusted hazard ratio [aHR], 0.51; 95% CI, 0.48-0.54) compared with nonsurgical care. The risk of primary composite CVD outcomes was reduced by 47% (aHR, 0.53 [95% CI, 0.48-0.59), and the risk of secondary composite CVD outcomes decreased by 50% (aHR, 0.50; 95% CI, 0.46-0.53) in individuals with vs without surgery. Conclusions and Relevance: Results of this study suggest that, compared with nonsurgical care, bariatric surgery was associated with significant reduction in CVD risk in individuals with severe obesity and NAFLD.

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Authors
Elsaid, M. I., Li, Y., Bridges, J. F. P., Brock, G., Minacapelli, C. D., & Rustgi, V. K.
Affiliations
  • The Ohio State University (US)
  • Rutgers, The State University of New Jersey (US)
Corresponding author
Rustgi, Vinod K.
Venue
JAMA Network Open
Published
2022-10-07
Volume
5
Issue
10
Pages
e2235003
ISSN
2574-3805 (ISSN-L)
OpenAlex
W4303437732
Cited by
63
References
74
Citations by year
2026: 12 · 2025: 14 · 2024: 26 · 2023: 10
FWCI
11.93
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • JAMA Network Open (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Surgery › Bariatric Surgery and Outcomes
  • Health Sciences › Medicine › Epidemiology › Liver Disease Diagnosis and Treatment
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes, Cardiovascular Risks, and Lipoproteins
Keywords
bariatric surgery, non-alcoholic fatty liver disease, morbid obesity, cardiovascular disease, cardiovascular events, Roux-en-Y gastric bypass, sleeve gastrectomy, myocardial infarction, heart failure, ischemic stroke, transient ischemic attack, atherosclerosis, cardiovascular risk reduction, inverse probability of treatment weighting, commercial claims data
MeSH terms
Adult, Female, Humans, Myocardial Infarction, Obesity, Morbid, Retrospective Studies, Bariatric Surgery, Non-alcoholic Fatty Liver Disease

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