{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,1]],"date-time":"2026-10-01T06:11:58Z","timestamp":1790835118152,"version":"4.1.0"},"reference-count":0,"publisher":"AVES YAYINCILIK A.\u015e.","issue":"10","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Turkish Journal of Gastroenterology"],"abstract":"<jats:p>Background: This study aims to assess the prevalence of preoperative and postoperative nutritional deficiencies and associated factors in patients who are eligible for laparoscopic sleeve gastrectomy. Methods: Patients who underwent primary laparoscopic sleeve gastrectomy between December 2018 and April 2020 were included in the study. All patients were screened by detailed laboratory tests pre- and post-laparoscopic sleeve gastrectomy 6th and 12th months. Patients&amp;rsquo; data, which were recorded prospectively, were analyzed retrospectively. Results: A total of 228 patients were included in the study. The mean age was 39 &amp;plusmn; 11.5 (60% female), and the mean body mass index was 41.2 &amp;plusmn; 6.3 kg\/m2. In the preoperative period, anemia was detected in 20 female patients (9%), low ferritin levels were detected in 25%, B12 and folic acid deficiencies were detected in 2.6% and 12.3%, respectively, and vitamin D deficiency was detected in 76% of the patients. During the postoperative follow-up, 77% of the patients received multivitamin supplements regularly. Mean body mass index regressed to 27.1 &amp;plusmn; 4.2 kg\/m2 in the first year. Incidence of anemia was found at 4.8%, low ferritin levels were 14%, folate deficiency was 5.3%, B12 deficiency was 5.3%, and vitamin D deficiency was 25% in the 12th month. Vitamin A, zinc, biotin, and thiamine deficiencies were 8.8%, 6.6%, 11%, and 2.2% in the 12th month, respectively. Conclusion: In the preoperative period, we detected significant deficiencies in some vitamins. The incidence of de novo vitamin deficiency during post-laparoscopic sleeve gastrectomy follow-up was low. Regular multivitamin&amp;ndash;multimineral use may have an effect on this Cite this article as: \u015een O, &amp;Ccedil;etin D, Dumanl\u0131 G, T&amp;uuml;rk&amp;ccedil;apar AG. Nutritional deficiencies in morbid obese patients before and after laparoscopic sleeve gastrectomy. Turk J Gastroenterol. 2022;33(10):885-890.<\/jats:p>","DOI":"10.5152\/tjg.2022.21935","type":"journal-article","created":{"date-parts":[[2022,8,4]],"date-time":"2022-08-04T09:16:51Z","timestamp":1659604611000},"page":"885-890","source":"Crossref","is-referenced-by-count":5,"title":["Nutritional Deficiencies in Morbid Obese Patients Before and After Laparoscopic Sleeve Gastrectomy"],"prefix":"10.5152","volume":"33","author":[{"given":"Ozan","family":"\u015een","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dilara","family":"\u00c7etin","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"G\u00f6knel","family":"Dumanl\u0131","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ahmet G\u00f6khan","family":"T\u00fcrk\u00e7apar","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"3111","published-online":{"date-parts":[[2022,10,15]]},"container-title":["Turkish Journal of Gastroenterology"],"original-title":[],"link":[{"URL":"http:\/\/turkjgastroenterol.org\/index.php\/tjg\/article\/download\/3936\/3598","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2026,2,17]],"date-time":"2026-02-17T03:00:27Z","timestamp":1771297227000},"score":1,"resource":{"primary":{"URL":"http:\/\/turkjgastroenterol.org\/index.php\/tjg\/article\/view\/3936"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2022,10,15]]},"references-count":0,"journal-issue":{"issue":"10","published-online":{"date-parts":[[2022,10,15]]}},"URL":"https:\/\/doi.org\/10.5152\/tjg.2022.21935","relation":{},"ISSN":["2148-5607"],"issn-type":[{"value":"2148-5607","type":"electronic"}],"subject":[],"published":{"date-parts":[[2022,10,15]]}}}