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The evaluation of bariatric surgery effect on cardiac structure and function using transthoracic echocardiography: a
Firoozeh Abtahi1, Malek Atashbarg1, Mahdi Rahmanian2
1Department of Cardiology, School of Medicine, Shiraz University of Medical Science, Shiraz, Iran.
Insights
Bariatric surgery significantly improves cardiac structure and function in patients with morbid obesity. Echocardiography shows enhanced heart measurements six months post-operation, highlighting surgery
Area of Science:
- Cardiology
- Bariatric Surgery
- Obesity Medicine
Background:
- Obesity is a global health issue linked to cardiovascular disease.
- Morbid obesity negatively impacts heart structure and function.
- Bariatric surgery is a treatment for obesity with potential cardiac benefits.
Purpose of the Study:
- To evaluate the impact of bariatric surgery on cardiac structure and function.
- To assess changes in echocardiography parameters post-weight loss.
- To investigate cardiac remodeling in morbidly obese patients after surgery.
Main Methods:
- A cohort study of 30 morbidly obese patients (BMI > 40 or > 35 with comorbidity).
- Transthoracic echocardiography performed before and six months after bariatric surgery.
- Analysis of cardiac morphology and function parameters.
Main Results:
- Significant reduction in weight, BMI, and body surface area post-surgery.
- Marked improvement in left ventricular morphology and mass (p < 0.001).
- Enhanced left ventricular ejection fraction (LVEF) and right ventricular function (TAPSE) (p < 0.001).
- Reduction in left atrium volume and improved diastolic function (mitral inflow E/e') (p < 0.001).
Conclusions:
- Bariatric surgery leads to significant improvements in cardiac structure and function.
- Weight loss following bariatric surgery positively impacts both systolic and diastolic parameters.
- The study demonstrates bariatric surgery's efficacy in reversing obesity-related cardiac changes.
Background:
Obesity is a pathology and a leading cause of death worldwide. Obesity can harm multiple organs, including the heart. In this study, we aim to investigate the effect of bariatric surgery and following weight loss on cardiac structure and functions using echocardiography parameters in patients with morbid obesity.
Methods:
In this cohort study, 30 patients older than 18 with BMI > 40 or BMI > 35 and comorbidity between March 2020 to March 2021 were studied. The patients underwent transthoracic echocardiography before and after six months of the bariatric surgery.
Results:
In total, 30 patients (28 women, 93.3%) with a mean age of 38.70 ± 9.19 were studied. Nine (30%) were diabetic, and 9 (30%) had hypertension. After six months of bariatric surgery, all physical measurements, including weight, Body mass index, and Body surface area, decreased significantly (p < 0.001). After bariatric surgery, all parameters regarding left ventricular morphology, including left ventricular mass, interventricular septal thickness, left ventricular posterior wall thickness, left ventricular end-systolic diameter, and left ventricular end-diastolic diameter, improved significantly (p < 0.001). Also, LVEF rose post-bariatric surgery (p < 0.001). TAPSE parameter indicating right ventricular function also improved (p < 0.001). Right ventricular diameter, left atrium volume, and mitral inflow E/e' decreased significantly (p < 0.001).
Conclusion:
Systolic and diastolic parameters refine significantly after bariatric surgery in patients with obesity. Bariatric surgery lead to significant cardiac structure and function improvement.
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