Trial reportSurgical endoscopy2017
Accuracy and inter-operator variability of small bowel length measurement at laparoscopy.
Trial report in Surgical endoscopy, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT07289555 (Tailored Stapled Single Anastomosis Duodeno-ileal Bypass With Sleeve Gastrectomy), which is not on this map. Cited by 17 papers, 3 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.
Tailored Stapled Single Anastomosis Duodeno-ileal Bypass With Sleeve Gastrectomy (SADI-S): Initial Report and Preliminary Results
Who cites it
17 citing papers in PubMed, 3 syntheses or guidelines pooled it, 26 citations in OpenAlex.
- The Role of Total Small Bowel Length and its Measurement in Metabolic Bariatric Surgery. A Systematic Review.Obesity surgery · 2026Pooled it
- A systematic review of the Da Vinci® Single-Port system (DVSP) in the context of colorectal surgery.International journal of colorectal disease · 2025Pooled it
- Optimal Small Bowel Limb Lengths of Roux-en-Y Gastric Bypass.Current obesity reports · 2023Pooled it
- Preoperative Prediction of Total Small Bowel Length Using Anthropometric Measurements: Development and Internal Validation of a Model in 327 Adult Autopsies.Diagnostics (Basel, Switzerland) · 2026Article
- Agreement and precision of an AI-based measurement tool during robotic-assisted sleeve gastrectomy.Surgical endoscopy · 2026Article
- Development of an artificial intelligence based virtual tool for measuring distances during image-guided surgery.Surgical endoscopy · 2026Article
- Measuring Small Bowel Length in Bariatric Surgery: An Ex Vivo Laparoscopic Training Experiment.Surgical innovation · 2024Article
- [Current evidence on loop length in intestinal bypass procedures].Chirurgie (Heidelberg, Germany) · 2023Review
- Using Anthropometric and Demographic Factors to Predict Small Bowel Length to Prevent Malnutrition in Bariatric Surgery.Advanced biomedical research · 2023Article
- Effects of short or long biliopancreatic limb length after laparoscopic Roux-en-Y gastric bypass surgery for obesity: a propensity score-matched analysis.Langenbeck's archives of surgery · 2022Article
- Laparoscopic Small Bowel Length Measurement in Bariatric Surgery Using a Hand-Over-Hand Technique with Marked Graspers: an Ex Vivo Experiment.Obesity surgery · 2022Article
- How accurate is the visual estimation of bowel length by endoscopic surgeons?Frontiers in surgery · 2022Article
- The Hardship of Recovering a Patient from Liver Failure after One Anastomosis Gastric Bypass.Obesity surgery · 2021Article
- One Anastomosis Gastric Bypass-Mini Gastric Bypass with Tailored Biliopancreatic Limb Length Formula Relative to Small Bowel Length: Preliminary Results.Obesity surgery · 2019Observational
- Revision of Roux-en-Y Gastric Bypass with Limb Distalization for Inadequate Weight Loss or Weight Regain.Obesity surgery · 2019Article
- Repeated stretched or non-stretched small bowel length measurements in healthy individuals.Turkish journal of surgery · 2019Article
- Preoperative Prediction of Small Bowel Length Using CT Scan and Tridimensional Reconstructions: a New Tool in Bariatric Surgery?Obesity surgery · 2018Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundMeasurement of bowel length is an essential surgical skill for laparoscopic and open gastrointestinal surgery in order to achieve favorable outcomes and avoid long-term complications. Variations in accuracy between the two surgical approaches may exist. However, only few studies have tried to assess these differences. Our aim was to assess reliability and inter-rater variability of small bowel length assessment during laparoscopy in an in vivo porcine model.
methodsThis is a single-institution, double-blinded, technical assessment study in a porcine in vivo model. Fourteen participants (ten senior surgeons with >1000 laparoscopic procedures and four junior surgeons) had to assess and mark lengths of small bowel in both laparoscopic and open surgical approaches. Each participant was assigned to measure and mark specific, randomized distances (range 25-197 cm) in both laparoscopic and open approaches using color-coded vessel loops. Actual participant-marked distances were compared to the assigned distances followed by Bland-Altman plots and linear regression analysis to determine accuracy and proportional error trends. Study data were further compared to available data sets from previously published studies.
resultsLaparoscopy measurements were significantly shorter than required (difference 33.8 ± 28.7 cm, P < 0.001, 95% CI 17.8-49.7). The measuring error was proportional to the length of the measured segment (63% of the required distances, IQR 58.9-79.0%, P = 0.02). At laparotomy, mean difference and standard deviation were lower (1.5 cm ± SD 15 cm) and not statistically significant (P = 0.7). Re-analysis of previously published data sets validated the observed errors in laparoscopic bowel measurement (P < 0.01).
conclusionsSmall bowel length assessment during laparoscopy is inaccurate and associated with substantial variability. There is a need to develop a standardized laparoscopic technique for measuring small bowel length which is simple, reproducible, and easy to learn.
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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.