TY - BOOK AU - Mohammed Fathi Mahmoud Elshal AU - Ibrahim Galal Khalifa , AU - Mohammed Hassan Ali , AU - Tarek Osama Hegazy , TI - Nutritional derangements after sleeve gastrectomy / PY - 2017/// CY - Cairo : PB - Mohammed Fathi Mahmoud Elshal , KW - Nutritional derangements sleeve gastrectomy KW - Sleeve gastrectomy KW - Vitamin B12 N1 - Thesis (Ph.D.) - Cairo University - Faculty of Medicine - Department of General Surgery; Issued also as CD N2 - Background: As obesity continues to be one of the greatest health struggles of our time, bariatric surgery is a valuable therapeutic tool for both the treatment of morbid obesity and associated co-morbid conditions. Regardless of the procedure performed, there are nutritional deficiencies (Vitamin B12, Vitamin D, Proteins, Iron, Zinc and calcium) that can occur both pre and post-operatively, and pose a challenge to patient and clinician alike. Patients and Methods: Our study was conducted on 50 morbidly obese patients presenting to the bariatric and metabolic surgery clinic in the Cairo university hospital (Kasr Alaini School of medicine). Out of these 50 morbidly obese patients, 36 were females (72%) and 14 were males (28%).The mean age was 31.96 ± 8.27.The mean body mass index (BMI) was 51.34 ± 8.51 kg/m2. Patients were examined preoperatively, 3 and 6 months postoperatively for short term results with regard %EWL, control of preoperative comorbidities and important laboratory parameters (Hemoglobin level, iron level, Vitamin B12, Calcium, Vitamin D, Zinc level, Copper level & Albumin level). Results: In our study, the prevalence of preoperative,3 and 6 months postoperative vitamin and micronutrient derangements was as follows: microcytic hypochromic anemia (9 patients (18%) preoperative, 21 patients (42%) at 3 months & 27 patients (54%) at 6 months), iron deficiency (7 patients (14%) preoperative, 18 patients (36%) at 3 months &23 patients (46%) at 6 months), vitamin B12 deficiency (8 patients (16%) preoperative), vitamin b12 excessin 34 patients (68%) at 3 months &40 patients (80%) at 6 months), protein calorie malnutrition (hypoalbuminemia) (6 patients (12%) preoperative, 9 patients (18%) at 3 months &12 patients (24%) at 6 months), vitamin D deficiency (32 patients (64%) preoperative, 37 patients (74%) at 3 months &42 patients (84%) at 6 months), hypocalcemia (22 patients (44%)preoperative, 29 patients (58%) at 3 months &39 patients (78%) at 6 months), low copper level (2 patients (4%) preoperative, 3 patients (6%) at 3 months &5 patients (10%) at 6 months) and low zinc level (2 patients (4%) preoperative, 12 patients (24%) at 3 months &13 patients (26%) at 6 months) ER -