ArticleObesity surgery2026
Standardized Pre- and Early Postoperative Dietary Protocols After Bariatric and Metabolic Surgery: A 20-Year Single-Center Experience Across Roux-en-Y Gastric Bypass, Sleeve Gastrectomy, and Ileal Procedures.
Article in Obesity surgery, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundStructured dietary management before and after bariatric and metabolic surgery is essential for reducing early postoperative complications, yet evidence describing tolerance and clinical outcomes across different surgical techniques remains limited. This study evaluated a standardized preoperative preparation diet and a uniform postoperative consistency-progression protocol implemented over two decades in a high-volume reference center.
methodsThis retrospective cohort included 622 adult patients who underwent Roux-en-Y gastric bypass (RYGB), sleeve gastrectomy (SG), ileal interposition, SADI-S, or gastric bipartition between 2004 and 2024. All patients completed a 10-day anti-inflammatory preoperative diet followed by a two-stage liquid regimen. Postoperatively, patients followed a structured progression from liquid to pureed and finally to solid foods over 30 days. Early outcomes included gastrointestinal symptoms and the occurrence of fistulas or drain use.
resultsThe cohort comprised 66.9% women, with RYGB being the most frequent procedure (55.5%), followed by SG (24.4%), ileal interposition (14.0%), SADI-S (3.9%), and bipartition (2.3%). Overall prevalence in the first postoperative month was 9.0% for constipation, 2.7% for diarrhea, 8.8% for vomiting, 2.4% for nausea, 0.6% for reflux, and 0.2% for dumping. Fistulas and drain requirements each occurred in 0.5% of patients. Across techniques, 79.9% of patients remained symptom-free; ileal interposition showed the highest symptom rate (29.9%).
conclusionsA uniform progression protocol following a structured preoperative diet was associated with low rates of gastrointestinal symptoms and postoperative complications across multiple bariatric procedures. These findings suggest that a physiology-based dietary pathway may be safely implemented during early postoperative recovery. Larger prospective studies are warranted, particularly for emerging ileal techniques.
Indexed as
Identifiers
What Socratic 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 Socratic graph.