Trial reportThe British journal of surgery2025
Nutritional deficiencies after sleeve gastrectomy and Roux-en-Y gastric bypass at 10 years: secondary analysis of the SLEEVEPASS randomized clinical trial.
Trial report in The British journal of surgery, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT00793143 (A Randomized Prospective Three-center Study), which is not on this map. Cited by 10 papers, 1 of them a synthesis that pooled it.
What it found
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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.
A Randomized Prospective Three-center Study: Laparoscopic Gastric Bypass vs. Laparoscopic Sleeve Gastrectomy in the Treatment of Morbid Obesity
Who cites it
10 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Bariatric Procedures in the Sub-Saharan Africa: A Systematic Review of Patterns and Outcomes.Obesity surgery · 2025Pooled it
- Development and Validation of a Machine Learning Model for Predicting One-year Anemia After Bariatric Surgery: A Multicenter Study.Obesity surgery · 2026Article
- Laparoscopic Reversal of One-Anastomosis Gastric Bypass After Sleeve Gastrectomy: A Case Report.The American journal of case reports · 2026Article
- Nutritional status and its determinants in obese patients with type 2 diabetes mellitus following Roux-en-Y gastric bypass surgery.BMC surgery · 2026Article
- Effects of Recommended Supplementation and Mediterranean Diet Adherence on Post-Metabolic Bariatric Surgery Outcomes.Biomedicines · 2026Article
- Obesity, Bariatric Surgery, and Cancer Risk: Nutritional Perspectives and Long-Term Clinical Implications.Nutrients · 2026Review
- Mid-Term Changes in Quality of Life and Nutritional Habits Following Gastric Bypass: A 24-Month Follow-Up Study.Nutrients · 2026Article
- Recent Advances in Metabolic and Bariatric Surgery: A Narrative Review of Therapeutic Strategies for Weight Loss and Metabolic Health.Diabetes, metabolic syndrome and obesity : targets and therapy · 2026Review
- [Metabolic/bariatric surgery is effective : What is the evidence regarding hard endpoints and long-term outcomes?]Chirurgie (Heidelberg, Germany) · 2026Review
- Therapeutic potential of gastro-gastric fistulas created via lumen-apposing metal stents for nutritional deficiencies after roux-en-y gastric bypass.Endoscopy international open · 2025Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
9 authors.
Funding
Abstract
backgroundLong-term data on the prevalence of nutritional deficiencies after laparoscopic sleeve gastrectomy (LSG) and laparoscopic Roux-en-Y gastric bypass (LRYGB) in RCTs are lacking. The aim of this study was to compare nutritional deficiencies and adherence to vitamin supplements after LSG and LRYGB at 10 years.
methodsThis was a predefined secondary analysis of the Finnish SLEEVEPASS (LSG versus LRYGB for severe obesity) multicentre RCT, with 10-year nutritional laboratory measurements and completed questionnaires on micronutrient supplement use, to assess the prevalence of micronutritional and macronutritional deficiencies and adherence.
resultsOf 240 patients (121 LSG patients and 119 LRYGB patients), 228 were available for 10-year follow-up. Of these 228 patients, 190 (83.3%) were available for laboratory tests and 192 (84.2%) for questionnaires. There were no statistically significant differences between LSG and LRYGB in the prevalence of vitamin D insufficiency (10 of 94 (11%) versus 9 of 84 (11%) respectively; P = 0.545), the prevalence of hypocalcaemia (3 of 92 (3%) versus 1 of 83 (1%) respectively; P = 0.088), the prevalence of vitamin B12 deficiency (2 of 46 (5%) versus 0 of 45 (0%); P = 0.240), or mean vitamin B12 levels (P = 0.939). The prevalence of iron deficiency, defined by ferritin level, was statistically significantly lower after LSG compared with LRYGB (4 of 29 (14%) versus 12 of 29 (41%); P = 0.017), with a median ferritin level of 34 (interquartile range 20-54) µg/l after LSG and 20 (interquartile range 12-117) µg/l after LRYGB (P = 0.397). The LSG group had statistically significantly lower overall adherence to micronutritional supplements (70 of 99 (71%) versus 83 of 93 (89%) respectively; P = 0.002).
conclusionLong-term micronutritional and macronutritional deficiencies were rare after both LSG and LRYGB, with similar deficiency rates. Only the prevalence of iron deficiency was more common after LRYGB compared with LSG. The overall adherence to micronutritional supplements was lower after LSG. REGISTRATION NUMBER: NCT00793143 (http://www.clinicaltrials.gov).
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