Costantino Voglino1, Andrea Tirone2, Cristina Ciuoli3, Nicoletta Benenati3, Barbara Paolini4, Federica Croce5, Ilaria Gaggelli2, Maria Laura Vuolo2, Roberto Cuomo6, Luca Grimaldi6, Giuseppe Vuolo2. 1. Department of Surgical Sciences, Unit of BariatricSurgery, S. Maria Alle Scotte Hospital, University of Siena, Siena, SI, Italy. costantinovoglino@gmail.com. 2. Department of Surgical Sciences, Unit of BariatricSurgery, S. Maria Alle Scotte Hospital, University of Siena, Siena, SI, Italy. 3. Department of Medical Sciences, Unit of Endocrinology, S. Maria Alle Scotte Hospital, University of Siena, Siena, SI, Italy. 4. Department of Innovation, experimentation and clinical research, Unit of dietetics and clinical nutrition, S. Maria Alle Scotte Hospital,University of Siena, Siena, SI, Italy. 5. Department of Diagnostic Imaging and Laboratory Medicine, Unit of Diagnostic Imaging, Ospedali Riuniti della Valdichiana, Montepulciano, SI, Italy. 6. Department of Surgical Sciences, Unit of Plastic and Reconstructive Surgery, S. Maria Alle Scotte Hospital, University of Siena, Siena, SI, Italy.
Abstract
INTRODUCTION: Visceral adipose tissue has been linked with cardiovascular events. Visceral adiposity index (VAI) is a routinely applicable tool for evaluation of visceral adipose dysfunction and linked to 10 year-cardiovascular risk. No previous studies have evaluated the changes over time of the VAI in patients who underwent different types of bariatric surgery. MATERIALS AND METHODS: We reviewed data of 42 patients who underwent laparoscopic sleeve gastrectomy (LSG) and 61 patients who underwent laparoscopic Roux-en-Y gastric bypass (LRYGB). VAI, lipid profile, and several anthropometric variables were measured before and after 5 years following surgery. RESULTS: During the studied time period, the BMI was similar between LSG and LRYGB patients (34.1 vs 31.6; p = 0.191), but the percentage of total weight loss (%TWL) for LRYGB was significantly higher than LSG (31.3% vs 23.0%; p < 0.001). LRYGB patients had a significant improvement of all lipid parameters evaluated over time, while LSG patients experienced only a reduction in triglycerides (TG) levels and an increase in HDL cholesterol (HDL-C). VAI values were similar in the two groups at baseline as well at the last follow-up point (5-year VAI, LSG: 0.93, RYGB: 0.93; p = 0.951). At multivariate regression analysis, 5-year-%TWL was the only independent predictor of a greater amount of VAI reduction over time. CONCLUSION: Bariatric surgery, independent of the type of surgical procedure, decreases the cardiovascular disease (CVD) risks due to weight loss and improvement of lipid parameters. VAI could be a useful tool to better identify eligible patients for bariatric surgery and to determine the success of surgery.
INTRODUCTION: Visceral adipose tissue has been linked with cardiovascular events. Visceral adiposity index (VAI) is a routinely applicable tool for evaluation of visceral adipose dysfunction and linked to 10 year-cardiovascular risk. No previous studies have evaluated the changes over time of the VAI in patients who underwent different types of bariatric surgery. MATERIALS AND METHODS: We reviewed data of 42 patients who underwent laparoscopic sleeve gastrectomy (LSG) and 61 patients who underwent laparoscopic Roux-en-Y gastric bypass (LRYGB). VAI, lipid profile, and several anthropometric variables were measured before and after 5 years following surgery. RESULTS: During the studied time period, the BMI was similar between LSG and LRYGB patients (34.1 vs 31.6; p = 0.191), but the percentage of total weight loss (%TWL) for LRYGB was significantly higher than LSG (31.3% vs 23.0%; p < 0.001). LRYGB patients had a significant improvement of all lipid parameters evaluated over time, while LSG patients experienced only a reduction in triglycerides (TG) levels and an increase in HDL cholesterol (HDL-C). VAI values were similar in the two groups at baseline as well at the last follow-up point (5-year VAI, LSG: 0.93, RYGB: 0.93; p = 0.951). At multivariate regression analysis, 5-year-%TWL was the only independent predictor of a greater amount of VAI reduction over time. CONCLUSION: Bariatric surgery, independent of the type of surgical procedure, decreases the cardiovascular disease (CVD) risks due to weight loss and improvement of lipid parameters. VAI could be a useful tool to better identify eligible patients for bariatric surgery and to determine the success of surgery.
Authors: Aziz H Poonawalla; Brett P Sjoberg; Jennifer L Rehm; Diego Hernando; Catherine D Hines; Pablo Irarrazaval; Scott B Reeder Journal: J Magn Reson Imaging Date: 2012-10-10 Impact factor: 4.813
Authors: Young Jae Kim; Ji Won Park; Jong Wan Kim; Chan-Soo Park; John Paul S Gonzalez; Seung Hyun Lee; Kwang Gi Kim; Jae Hwan Oh Journal: JMIR Med Inform Date: 2016-02-04