Effect of laparoscopic mini gastric bypass versus laparoscopic single anastomosis sleeve ileal bypass on serum iron and calcium levels

Abstract

Background Although bariatric surgery techniques are very effective in the treatment of obesity, they are usually associated with evident nutritional deficiencies. Such operations require ongoing medical care along with vitamin (Vit) and nutrition supplements. Aim Is to determine and compare the effect of Laparoscopic mini gastric bypass (MGB) versus laparoscopic single anastomosis sleeve ileal bypass (SASI) on serum iron and calcium levels. Methodology The current prospective Randomized controlled study included 62 patients who were randomly allocated into one of two equal groups. Group A ( n =31) underwent MGB while group B ( n =31) underwent SASI. Follow-up was designed for 6 and 12 months in both groups for the serum iron profile, serum folate, Vit B12, Vit D, parathyroid hormone, and calcium level. Results There was a statistically significant decrease in Excess weight loss (EWL)% in both groups after 1, 6, and 12 months and a significant EWL % in group A more than group B ( P =0.045*). There was a statistically significant drop in the Iron profile components’ levels in both groups after 1, 6, and 12 months in comparison with the corresponding baseline levels. There was a statistically significant decrease in the calcium level as well as Vit D3 within both groups at 1, 6, and 12 months follow-up with a significant increase in Parathyroid hormone in both groups at the same interval of follow-up. Conclusion Both MGB and SASI are effective methods for the treatment of morbid obesity. However, adherent follow-up for the Iron profile, Vit B12, Vit D3, parathyroid hormone, and calcium levels are mandatory.