A Systematic Review and Meta-analysis of the Effect of Gastric Bypass Surgery on Plasma Lipid Levels

被引:52
作者
Carswell, Kirstin A. [1 ,2 ]
Belgaumkar, Ajay P. [1 ]
Amiel, Stephanie A. [2 ]
Patel, Ameet G. [1 ]
机构
[1] Kings Coll Hosp London, Dept Gen Surg, Denmark Hill, London SE5 9RS, England
[2] Kings Coll London, Div Diabet & Nutr Sci, London, England
关键词
Gastric bypass surgery; Gastric bypass; Lipidaemia; Cholesterol; Triglycerides; NEFA; DENSITY-LIPOPROTEIN CHOLESTEROL; VERTICAL BANDED GASTROPLASTY; FREE FATTY-ACID; BARIATRIC SURGERY; ADIPOSE-TISSUE; WEIGHT-LOSS; HEART-DISEASE; NONFASTING TRIGLYCERIDES; BODY-COMPOSITION; GUT MICROBIOTA;
D O I
10.1007/s11695-015-1829-x
中图分类号
R61 [外科手术学];
学科分类号
摘要
Background Obesity-related dyslipidaemia comprises hypercholesterolaemia, hypertriglyceridaemia, low HDLcholesterol and normal to raised LDL-cholesterol levels. 40 % of morbidly obese surgical patients have dyslipidaemia. Roux-en-Y gastric bypass (RYGB) surgery has many beneficial metabolic effects, but the full impact on plasma lipids has not been clearly defined. Methods A systematic review of electronic databases (Ovid; Medline; PubMed; Embase) between 1960 and March 2012 was performed using search terms including the following: obesity surgery, bariatric surgery, gastric bypass, cholesterol, lipids, triglycerides and non-esterified fatty acids. A total of 2442 manuscripts were screened. Papers with paired plasma lipid levels around RYGB surgery were included. Exclusions included the following: editorials, dual publications, n< 10, resulting in 75 papers of relevance. A meta-analysis was performed of the effect of RYGB surgery upon plasma lipids at different time points up to 4 years following surgery, using a random effects model. Results Paired data were available for 7815 subjects around RYGB surgery for morbid obesity with a baseline BMI 48 kg/ m2 (n= 2331). There was a reduction in plasma total cholesterol and LDL-C from 1 month up to 4 years post-RYGB (p< 0.00001, p< 0.00001). Following RYGB, HDL-C increased from 1 year onwards (p< 0.00001), and triglyceride levels were reduced postoperatively from 3 months up to 4 years (p< 0.00001). NEFA levels were increased at 1 month postoperatively (p= 0.003), but from 3 months onwards did not differ from preoperative levels (p= 0.07). Conclusions RYGB surgery reverses the dyslipidaemia of obesity. These findings support the use of RYGB in the management of high cardiovascular risk lipid profiles in morbid obesity.
引用
收藏
页码:843 / 855
页数:13
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