Abstract

ZUBIAGA TORO, Lorea et al. Assessment of cardiovascular risk after sleeve gastrectomy: comparative of BMI, adiposity, Framingham and atherogenic index as markers of success of surgery. Nutr. Hosp. [online]. 2016, vol.33, n.4, pp.832-837. ISSN 1699-5198.  https://dx.doi.org/10.20960/nh.377.

Introduction and objective: BMI can be misleading for certain body constitutions, for this reason other parameters have been proposed as predictors of cardiovascular risk, among them the adiposity (calculated through CUNBAE formula) the Framingham Index and the Atherogenic Index (TC-r/HDL-c.) We propose to compare these factors as markers of success after sleeve gastrectomy as bariatric surgery procedure for obese patients. Material and methods: We performed a prospective observational study of patients undergoing to a sleeve gastrectomy and with a minimum follow-up period of 1 year. We analyze the evolution of BMI, adiposity, the Framingham Index & the Atherogenic Index. Results: We analyzed 140 patients. Preoperative BMI was 49.1 kg/m², with a 54.8% for adiposity. The Framingham value was 7.54% and Atherogenic Index: 4.2. At 12 months BMI was 28.4 kg/m² and adiposity percentage 39.4%. At the same time, the Framingham was 3.7% and Atherogenic Index: 1.64. Analyzing these data, after 12 months from surgery, the mean of BMI is in range of overweight, the adiposity is classified as obesity (> 25% in men and > 35% in women), the Framingham range describes a low cardiovascular risk (< 5%) and the Atherogenic Index is located in the normal range (< 3). Correlating these parameters we observed that BMI is correlated with adiposity at preoperative values (Pearson 0.486; p = 0.004), postoperative (Pearson 0.957; p < 0.001), and the difference between them (Pearson 0.606; p = 0.017). This is logical, because the BMI is included in the formula for calculating the adiposity (by CUNBAE formula.) In the postoperative values correlated the adiposity with Framingham value (Pearson 0.814, p = 0.036) and with the atherogenic risk (p = 0.049, 0.517 Pearson.) In preoperative values, these correlations are not objectified. BMI was not correlated with adiposity. Conclusion: The adiposity correlates better with cardiovascular risk indices, such as the Framingham Index or the Atherogenic Index, but only in the postoperative values. These elements represent useful tools for assessing the decreased risk of cardiovascular disease after bariatric surgery.

Keywords : Bariatric surgery; Adiposity; Body mass index; Cardiovascular risk.

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