Background

Obesity and with its associated comorbidities represents high a significant risk factors for perioperative major cardiovascular events and mortality. Identification of predictors for postoperative myocardial infarction (MI) in patients undergoing bariatric surgery (BaS) is imperative for the prevention of mortality. The aim of our study is to identify this predictor following bariatric interventions.

Methods

A retrospective analysis of the Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program (MBSAQIP) data base was performed from 2015 to 2019. Demographics, comorbidities, type of procedure and surgical approach were analyzed in patients with and without postoperative diagnosis of MI. Multivariate logistic regression was utilized to identify risk factors and predictors of MI.

Results

A total of 752,722 patients were included in our study. Patients with postoperative diagnosis of MI were 207 and with no MI 752,515. The majority of patients were females with 61% and 79.6% respectively. Patients with MI had significantly higher rates of comorbidities when compared to no MI patients, as well as prolonged operative times. Identification of risk factors for MI using logistic regression analysis showed that age, hypertension(HTN), diabetes (DM), coronary artery disease (CAD), and chronic Kidney Disease (CKD) were the most significant predictors for this pathology following BaS.

Conclusions

Severe cardiac complications are unusual following bariatric surgery. and their incidence is associated to increased mortality . Older age, HTN, DM, CKD, and CAD are significant predictors and increase the risk of postoperative MI. Further studies are needed to better asses our findings.