SynthesisObesity surgery2008
Vitamin D and the bariatric surgical patient: a review.
Synthesis in Obesity surgery, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01385098 (Preoperative Vitamin D Status and Efficacy of Therapeutic Vitamin D Supplementation Postoperatively in Bariatric Surgery Patients), which is not on this map. Cited by 39 papers, 2 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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.
Preoperative Vitamin D Status and Efficacy of Therapeutic Vitamin D Supplementation Postoperatively in Bariatric Surgery Patients
Who cites it
39 citing papers in PubMed, 2 syntheses or guidelines pooled it, 113 citations in OpenAlex.
- Changes in Bone Metabolism After Sleeve Gastrectomy Versus Gastric Bypass: a Meta-Analysis.Obesity surgery · 2020Pooled it
- Hypovitaminosis D in bariatric surgery: A systematic review of observational studies.Metabolism: clinical and experimental · 2016Pooled it
- Impact of Roux-en-Y gastric bypass versus sleeve gastrectomy on vitamin D metabolism: short-term results from a prospective randomized clinical trial.Surgical endoscopy · 2014Trial
- Bone mass decreases in morbidly obese women after long limb-biliopancreatic diversion and marked weight loss without secondary hyperparathyroidism. A physiological adaptation to weight loss?Obesity surgery · 2009Trial
- Bariatric Surgery and Vitamin D: Trends in Older Women and Association with Clinical Features andNutrients · 2023Article
- VITAMIN D LEVELS AND LIPID PROFILE IN PATIENTS UNDERGOING BARIATRIC SURGERY.Arquivos brasileiros de cirurgia digestiva : ABCD = Brazilian archives of digestive surgery · 2023Article
- An Update on Vitamin D Deficiency Status in Malaysia.Nutrients · 2022Review
- Review
- Expert opinion on the preoperative medical optimization of adults with diabetes undergoing metabolic surgery.World journal of diabetes · 2021Review
- Trends in Serum Vitamin D Levels within 12 Months after One Anastomosis Gastric Bypass (OAGB).Obesity surgery · 2021Observational
- Bone Mineral Density, Parathyroid Hormone, and Vitamin D After Gastric Bypass Surgery: a 10-Year Longitudinal Follow-Up.Obesity surgery · 2020Article
- Vitamin D Status After Gastric Bypass or Sleeve Gastrectomy over 4 Years of Follow-up.Obesity surgery · 2020Article
- Inadequacy of Vitamin D Nutritional Status in Individuals with Metabolically Unhealthy Obesity Phenotype: The Relevance of Insulin Resistance.Diabetes, metabolic syndrome and obesity : targets and therapy · 2020Article
- Endocrine implications of bariatric surgery: a review on the intersection between incretins, bone, and sex hormones.Physiological reports · 2019Review
- Maternal Anthropometry and Its Relationship with the Nutritional Status of Vitamin D, Calcium, and Parathyroid Hormone in Pregnant Women After Roux-en-Y Gastric Bypass.Obesity surgery · 2018Article
- Thin bones: Vitamin D and calcium handling after bariatric surgery.Bone reports · 2018Article
- Current therapies in alleviating liver disorders and cancers with a special focus on the potential of vitamin D.Nutrition & metabolism · 2018Review
- Impact of Preoperative Serum Vitamin D Level on Postoperative Complications and Excess Weight Loss After Gastric Bypass.Obesity surgery · 2017Article
- Calcifediol Rather Than Cholecalciferol for a Patient Submitted to Malabsortive Bariatric Surgery: A Case Report.Journal of the Endocrine Society · 2017Article
- Greater Adherence to Cancer Prevention Guidelines Is Associated with Higher Circulating Concentrations of Vitamin D Metabolites in a Cross-Sectional Analysis of Pooled Participants from 2 Chemoprevention Trials.The Journal of nutrition · 2017Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveAdiposity has been inversely associated with vitamin D concentration across a range of body mass index values and cultural groups. As obesity has increased markedly worldwide, a greater number of patients with severe obesity have been treated with gastric restrictive and/or malabsorptive surgical procedures. The purpose of this review was to describe current knowledge about vitamin D and severe obesity, and the impact of obesity surgery on vitamin D status. RESEARCH METHODS AND PROCEDURES: A systematic review was conducted with search terms obesity, vitamin D, osteoporosis, bone disease, gastric bypass, and obesity surgery in various combinations. Publications were limited to those since 2000 to control for similarity in vitamin D assays and obesity prevalence levels.
resultsMean 25-hydroxy vitamin D was <80 nmol/l in more than 1,900 patients preoperatively, and was not restored to the optimal concentration of >80 nmol/l postoperatively. Both secondary hyperparathyroidism and bone loss were common, particularly when the obesity surgery included a malabsorptive component. Standard postsurgical supplementation with vitamin D and calcium have not been adequate to suppress secondary hyperparathyroidism or to restore 25-hydroxy vitamin D status. DISCUSSION: The mechanisms behind vitamin D deficiency in severe obesity and evidence-based corrective actions have not been well-defined. Of particular concern are adolescents who qualify for and elect surgical treatment of their obesity, where subsequent metabolic bone disease may be long-standing.
Indexed as
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What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.