SynthesisObesity surgery2016
Small Bowel Limb Lengths and Roux-en-Y Gastric Bypass: a Systematic Review.
Synthesis in Obesity surgery, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 88 papers, 8 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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
88 citing papers in PubMed, 8 syntheses or guidelines pooled it.
- The Role of Total Small Bowel Length and its Measurement in Metabolic Bariatric Surgery. A Systematic Review.Obesity surgery · 2026Pooled it
- Iron deficiency anemia after one anastomosis gastric bypass: A systematic review and meta-analysis.Surgical endoscopy · 2025Pooled it
- Pooled it
- One-Anastomosis Gastric Bypass Versus Roux-en-Y Gastric Bypass as Revisional Surgery After Sleeve Gastrectomy: a Systematic Review and Meta-analysis.Obesity surgery · 2022Pooled it
- Length of biliopancreatic limb in Roux-en-Y gastric bypass and its impact on post-operative outcomes in metabolic and obesity surgery-systematic review and meta-analysis.International journal of obesity (2005) · 2022Pooled it
- Effect of Biliopancreatic Limb Length on Weight Loss, Postoperative Complications, and Remission of Comorbidities in One Anastomosis Gastric Bypass: a Systematic Review and Meta-analysis.Obesity surgery · 2022Pooled it
- Contribution of Malabsorption to Weight Loss After Roux-en-Y Gastric Bypass: a Systematic Review.Obesity surgery · 2017Pooled it
- Monitoring of Liver Function Tests after Roux-en-Y Gastric Bypass: An Examination of Evidence Base.Obesity surgery · 2016Pooled it
- Eleven-Year Outcomes of a Randomized Controlled Trial Comparing Standard and Distal Roux-en-Y Gastric Bypass in Patients with BMI Above 50 kg/m².Obesity surgery · 2025Trial
- Long Biliopancreatic Limb (BPL) RYGB Versus Short BPL RYGB Post-Suboptimal Initial Clinical Response of SG or Recurrent Weight Gain: A Randomized Controlled Study.Obesity surgery · 2025Trial
- Revisional Roux-en-Y Gastric Bypass Versus Revisional One-Anastomosis Gastric Bypass After Failed Sleeve Gastrectomy: a Randomized Controlled Trial.Obesity surgery · 2022Trial
- Standard Biliopancreatic Limb (50 cm) Roux-en-Y Gastric Bypass Versus Long Biliopancreatic Limb (100 cm) Roux-en-Y Gastric Bypass in Patients with Body Mass Index 40-50 kg/mObesity surgery · 2022Trial
- Trial
- Conventional Versus Distal Laparoscopic One-Anastomosis Gastric Bypass: a Randomized Controlled Trial with 1-Year Follow-up.Obesity surgery · 2019Trial
- Trial
- Patient-Reported Outcome Measures 2 Years After Standard and Distal Gastric Bypass-a Double-Blind Randomized Controlled Trial.Obesity surgery · 2018Trial
- Laparoscopic Sleeve Gastrectomy Versus Banded Roux-en-Y Gastric Bypass for Diabetes and Obesity: a Prospective Randomised Double-Blind Trial.Obesity surgery · 2018Trial
- Accuracy and inter-operator variability of small bowel length measurement at laparoscopy.Surgical endoscopy · 2017Trial
- Factors Predicting Variability in Total Small Bowel Length (TSBL) in People With Obesity Undergoing Metabolic Bariatric Surgery.Obesity surgery · 2026Article
- Small Intestine and Vermiform Appendix Lengths in Healthy Adults: Intraoperative Morphometric Data from a Living Donor Cohort.Journal of clinical medicine · 2026Article
28 more citing papers are in PubMed but not listed here.
Corrections and comments
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Authors and funding
9 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
There is currently no consensus on the combined length of small bowel that should be bypassed as biliopancreatic or alimentary limb for optimum results with Roux-en-Y gastric bypass. A number of different limb lengths exist, and there is significant variation in practice amongst surgeons. Inevitably, this means that some patients have too much small bowel bypassed and end up with malnutrition and others end up with a less effective operation. Lack of standardisation poses further problems with interpretation and comparison of scientific literature. This systematic review concludes that a range of 100-200 cm for combined length of biliopancreatic or alimentary limb gives optimum results with Roux-en-Y gastric bypass in most patients.
Indexed as
Identifiers
26749410What 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.