Abstract
BackgroundPatients with metabolic syndrome (MetS) are at increased risk of developing cardiovascular disease along with other adverse events after bariatric surgery. ObjectivesThe incidence of short-term major adverse cardiovascular events (MACE) in patients with MetS undergoing bariatric surgery is not well characterized. SettingAccredited bariatric surgery centers in the United States and Canada. MethodsA total of 760,076 patients aged ≥18 years with body mass index ≥35 kg/m2 who underwent primary bariatric surgery between 2015 and 2018 were included. Patients with both diabetes and hypertension were described as the MetS cohort. Patient characteristics, operative technique, and 30-day outcomes were compared. The primary outcome was incidence of MACE, a composite of myocardial infarction, stroke, and all-cause mortality. Unadjusted and multivariable logistic regression analyses were performed and included an interaction between MetS and hyperlipidemia (HLD). ResultsOf the 577,882 patients included, 111,128 (19.2%) exhibited MetS. Patients with MetS more frequently experienced MACE compared with patients without MetS (.3% versus .1%; P < .001). The odds of MACE were greater for patients with MetS versus Non-MetS (odds ratio [OR] 2.87; 95% CI, 2.49–3.32) in the unadjusted analysis. MetS without HLD, MetS with HLD, and Non-MetS with HLD are significantly associated with MACE when compared with those with non-MetS without HLD. ConclusionsPatients with MetS have an increased frequency of cardiac events following bariatric surgery. Future studies should determine if optimization of 1 or more components of MetS or other related co-morbidities reduces the cardiovascular risk for patients.
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