Evaluation the Role of Vitamin B12 and Ferritin in Obese Patients Who Underwent Gastric Sleeve Surgery

Samar Jassim  Ibrahim; Lelas Farhan  Bdaiwi; Muthanna Asaad  Al Sherbit; Yasser Fawzi  Zidan

Samar Jassim Ibrahim Department of Chemistry, College of Education for Girls, University of Mosul, Iraq
Lelas Farhan Bdaiwi Department of Chemistry, College of Education for Girls, University of Mosul, Iraq
Muthanna Asaad Al Sherbit Al-Jamhory Teaching Hospital , Nineveh Health Directorate, Mosul, Iraq
Yasser Fawzi Zidan Al-Jamhory Teaching Hospital , Nineveh Health Directorate, Mosul, Iraq

Keywords: Vitamin B12, Ferritin, Gastric Sleeve

Abstract

Background: Obesity is a public health problem and has led to advances in bariatric surgery. Laparoscopic sleeve gastrectomy (LSG) has become the most popular procedure worldwide; Due to continuous losing pounds and reducing obesity-related diseases. However, nutritional deficiencies are common due to altered digestive tract functions and anatomy, and poor absorption of micronutrients.

Objectives: To investigate after three months of bariatric surgery the levels of vitamin B12 and ferritin in patients who underwent bariatric surgery, we study the prevalence of micronutrient and vitamin deficiencies for the first (3) months before and after surgery, follow up the results of laparoscopic sleeve gastrectomy in terms of weight loss, obesity and comorbidities for obesity.

Materials and Methods: the analyzes were conducted for a group of 30 patients of both sexes who underwent sleeve gastrectomy and who were obese and had a body mass index of 40 kg / m2 or more. The study spanned from July 2022 to January 2023, after which they underwent sleeve gastrectomy in the hospital. Al-Zahrawi - Nineveh by specialized doctors and followed up for (3) months after the operation.

Results: the current study showed a significant decrease in vitamin B12, ferritin, hemoglobin, protein, albumin, creatinine, urea, sodium, potassium, and zinc levels in the serum of patients who underwent sleeve gastrectomy over the course of three months after the operation, compared with the serum of the same patients before. The results also showed a positive correlation between vitamin B12, ferritin, protein, and zinc. The results also showed a positive correlation between ferritin, vitamin B12, hemoglobin, and blood sugar.

Conclusion: The risk of developing vitamin b12 deficiency and iron deficiency after surgery due to insufficient intake and absorption of micronutrients, and patients who have undergone gastric sleeve surgery are at risk of developing micronutrient deficiencies, so nutritional supplements should be added, especially vitamin b12 and iron, and e. As gastrectomy included, BMI decreases in the long term.

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