ArticleObesity surgery2020
Evolution of Hematological Parameters During the First 2 Years After Laparoscopic Sleeve Gastrectomy: Results of a Retrospective Study.
Article in Obesity surgery, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers, 1 of them a synthesis that pooled it.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
2 citing papers in PubMed, 1 synthesis or guideline pooled it, 10 citations in OpenAlex.
- Serum anti-Müllerian hormone levels in women following bariatric surgery: insights from a systematic review and meta-analysis.BMC endocrine disorders · 2026Pooled it
- The impact of preoperative anemia on postoperative anemia and related nutritional abnormalities after bariatric surgery: a multicenter cohort study.Frontiers in nutrition · 2025Article
Corrections and comments
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Authors and funding
4 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeLaparoscopic sleeve gastrectomy (LSG) is one of the most effective bariatric surgery methods of treatment for obesity. It can cause nutritional deficiencies and lead to anemia at the same time. The aim of the present study is to retrospectively investigate whether the supplement treatment administration to cases that underwent LSG is sufficient in terms of the hematological parameters. MATERIAL AND
methodsA total of 494 obese patients between 18 and 65 years who underwent LSG were recruited to the study. Vitamin B12, iron, and folic acid replacement therapy are prescribed to all patients who can be followed-up at regular intervals. We compared hemogram, iron studies, vitamin B12, and folic acid values of these patients at preoperative and at first visit (1 month), 3, 6, 12, and 24 months post-surgery.
resultsThe number of patients with anemia and vitamin B12 and folic acid deficiencies decreased significantly during the follow-up with supplementation. Postoperative leucocyte and thrombocyte levels were significantly lower than the preoperative levels.
conclusionOur study indicates that the proper supplementation therapy in patients attending regular follow-up helps to keep hematological parameters within the normal range and to improve anemia and deficiencies of vitamin B12 and folic acid. Compliance with follow-up programs is essential after costly and invasive treatments such as sleeve gastrectomy to improve the well-being of patients in the long-term and to maximize compliance.
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