Eligibility criteria and study selection
The present study selected studies with obese patients who underwent
bariatric surgery and who had weight relapse after surgery. The
inclusion criteria to compose the meta-analysis were randomized
controlled trials, prospective, retrospective studies, case series,
Consensus Development Conference and Consensus Development Conference
(NIH) that presented a low risk of bias, clarity of comparisons,
precision, and consistency of the analyzes, as well as studies with
statistically well-prepared results and studies published in indexed
newspapers and with a significant impact factor. Exclusion criteria were
studies of meta-analysis, reviews, systematic, editorial reviews,
letters to the editor, and brief comments.
After these literary search criteria, ninety-six (96) studies involving
bariatric surgery, widening of the gastrojejunal anastomosis, weight
relapse, use of argon plasma, suturing, and surgery were found. Of this
total of articles, thirty-four (34) articles were selected to compose
the meta-analysis, according to the rules established by the Cochrane
instrument and by the quality of the evidence (Figure 1).