Micronutrient Status in the First Year After Laparoscopic Sleeve Gastrectomy According to Pylorus Distance (1-3 and 4-6 cm)

Abstract

Background: In sleeve gastrectomy (SG) surgery, there are studies that demonstrate the relationship between the distance from the pylorus and weight loss. However, there is no research in the published literature that shows a link between distance and vitamin deficits. This study aimed to determine the extent of micronutrient deficiencies in the first year after SG in weight- and comorbidity-matched patients. Materials and Methods: Between 2017 and 2022, 120 patients who underwent SG were matched for pylorus distances of 1-3 cm (SG1) and 4-6 cm (SG2). All patients took the same daily multivitamin supplement regularly for 6 months. Food consumption, metabolism, and nutrition parameters were recorded before surgery, at 6 months, and at 12 months. Results were considered statistically significant at p < 0.05. Statistical analyses were performed with Sigma Stat (R) software. Results: After surgery, serum concentrations of prealbumin, iron, vitamin B12, folate, zinc, and vitamin D were lower in the SG1 group than in the SG2 group, even though the groups had similar postoperative weight loss and dietary intake. Conclusion: At 1-year follow-up, nutritional deficiencies are more likely in patients with shorter pyloric lengths. This study demonstrated a parallel relationship between pyloric distance and micronutrient deficiencies.