In conclusion, laparoscopic sleeve gastrectomy ensured long-term excess weight loss 61.0% at 5 years. Laparoscopic sleeve gastrectomy has a long-term effect on significant improvement in the median values of triglycerides, low-density lipoproteins, and high-density lipoproteins, but not on total cholesterol levels. There is a risk of postoperative vitamin B12 and iron deficiency.

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Pain scores 20 mm or less on the VAS (0 to 100 mm) have no impact on the patients' quality of life. Uniform assessment methods of chronic pain should be developed to improve the quality of research.

Background: To assess the value of serological biomarker testing as a substitute for esophagogastroduodenoscopy (EGDS) in pre-operative assessment of patients referred for bariatric surgery. Methods: Sixty-five obese patients with a mean age of 43 years (range: 21-65) and a mean body mass index (BMI) of 44 (range: 36-59) were studied. The patients were tested with a four-biomarker panel: pepsinogen I and II, gastrin-17 (basal and stimulated), and Helicobacter pylori (HP) antibodies (GastroPanel®, Biohit Oyj, Finland). On the basis of the biomarker test, the patients were classified into the HS (healthy stomach) group (n = 22) with the normal biomarker profile and the NHS (non-healthy stomach) group (n = 43). The classification of patients into HS and NHS was evaluated against the gold standard, i.e. EGDS with biopsies. Results: The concordance (Cohen's kappa) between the biomarker test and gastric histology was 0.68; 95% CI 0.504-0.854, with an overall agreement of 84.6% (95% CI 73.9-91.4%). In the NHS group, all 43 patients had biopsy-confirmed chronic gastritis: 39 non-atrophic HP-gastritis, 4 atrophic antrum gastritis (AGA) of moderate severity. In the HS group only 6 patients had mild superficial H.pylori negative gastritis. Of the 22 HS subjects with the normal biomarker profile, 20 (31% of all 65) had no complaints either, while the remaining two had reflux symptoms with esophagitis. In the NHS group 10 patients had esophagitis and 8 had also reflux symptoms. Conclusions: The normal biomarker profile is an excellent surrogate for healthy stomach, implicating that pre-operative EGDS could have been avoided in 31% of our asymptomatic bariatric surgery patients who had the normal biomarker profile.