Reduction of Framingham BMI score after rapid weight loss in severely obese subjects undergoing sleeve gastrectomy: a single institution experience

Abstract

Background

There is vast evidence that supports the importance of obesity in the pathogenesis and progression of cardiovascular disease. Rapid weight loss induced by laparoscopic Roux-en-Y gastric bypass (RYGB) and adjustable gastric banding (LAGB) has proven beneficial. The aim of this study is to evaluate laparoscopic sleeve gastrectomy (LSG) as an alternative treatment modality and its impact on the Framingham-BMI 10-year risk score.

Methods

We retrospectively reviewed all patients that underwent bariatric surgery at our institution between 2010 and 2014. Patients who met the criteria for calculating the Framingham BMI 10-year risk score were included. Data collected included baseline demographics, perioperative parameters such as tobacco use, diagnosis of diabetes, treatment for hypertension, BMI and postoperative outcomes at 3 and 12 months.

Results

From our 1129 bariatric patients, 358 (31.7%) met criteria for the Framingham BMI 10-year risk score calculation. LSG was the most prevalent surgery 61.45% (N = 220) followed by LRYGB 22.06% (N = 79). Females composed 69% (N = 248) of our population. The average age for females was 52.3 ± 10.8 years and for males 54.07 ± 11.2 years. The initial Framingham 10-year score risk was significantly higher in males compared with females (36.16% ± 22.3 vs. 16.97% ± 15.6 (p < 0.001)). After 12-month follow-up, the absolute risk reduction in males was 11.58% (p < 0.001) and 6.17% in females (p < 0.001). The preoperative heart age was high in females and males (69.23 ± 15.72 years and 73.55 ± 13.55 years, respectively (p = 0.012)), and after 12 months it was reduced 7.19 years in females (p < 0.001) and 7.04 years in males (p < 0.001). The percentage of estimated BMI loss at 1 year was 64.43% in females and 60.69% in males.

Conclusion

Sleeve gastrectomy has demonstrated to be an effective method of treatment for obesity. Our results suggest that rapid weight loss after LSG has a positive impact in the reduction of the 10-year cardiovascular disease risk. Further prospective studies may be needed to better assess these findings.

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