{
  "abstract": "Purpose: Proximal gastrectomy (PG) is a function-preserving option for early gastric cancer located in the upper third of the stomach. We introduced robot-assisted valvuloplastic esophagogastrostomy (VEG) using the double-flap technique (DFT) and retrospectively compared its short-term outcomes with those of side-overlap (SO) reconstruction, with particular attention to postoperative reflux and nutritional changes.\n\nMethods: A total of 24 patients who underwent robot-assisted PG with VEG between January 2020 and July 2024 were retrospectively reviewed. Fourteen patients underwent VEG-SO and 10 underwent VEG-DFT.\n\nResults: Operative time, blood loss, and the incidence of Clavien–Dindo grade II or higher complications did not differ significantly between the groups. Contrast studies showed no reflux in either group. At 6 months, modified Los Angeles grade A or higher reflux esophagitis was observed in 7 of 14 patients in the SO group and 1 of 10 patients in the DFT group (50.0% vs. 10.0%, P = 0.031). No anastomotic stenosis occurred; one patient in the SO group developed anastomotic leakage. The percentage body weight loss was greater in the DFT group (P = 0.034), whereas changes in laboratory-based nutritional indices did not differ significantly between the groups.\n\nConclusion: In this small retrospective cohort, robot-assisted VEG-DFT was not associated with an apparent increase in short-term perioperative morbidity compared with VEG-SO. Reflux esophagitis was less frequent after DFT, whereas body weight loss at 6 months was greater. These findings are exploratory, and the mechanism and clinical relevance of the difference in weight loss remain uncertain.",
  "abstract_shown": true,
  "affiliations": [
    "Department of Surgery, Iwate Medical University School of Medicine, 2-1-1 Idaidori, Yahaba-cho, Shiwa-gun, Yahaba, Iwate 0283695 Japan",
    "Department of Medical Safety, Iwate Medical University School of Medicine, Yahaba, Iwate, 0283695 Japan"
  ],
  "article_type": "research article",
  "arxiv": null,
  "author_total": 8,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Naoto Takahashi",
      "orcid": "0009-0009-5461-4159"
    },
    {
      "affs": [
        0
      ],
      "name": "Shigeaki Baba"
    },
    {
      "affs": [
        0
      ],
      "name": "Haruka Nikai"
    },
    {
      "affs": [
        0
      ],
      "name": "Ryosuke Fujisawa"
    },
    {
      "affs": [
        0
      ],
      "name": "Masaki Kanno"
    },
    {
      "affs": [
        1
      ],
      "name": "Keisuke Koeda"
    },
    {
      "affs": [
        0
      ],
      "name": "Hiroyuki Nitta"
    },
    {
      "affs": [
        0
      ],
      "name": "Akira Sasaki"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/6rjv08qgjw6vj.bib",
  "cited_by": 0,
  "doi": "10.1007/s00423-026-04193-1",
  "fulltext_url": "https://pmc.ncbi.nlm.nih.gov/articles/PMC13736466/",
  "id": "6rjv08qgjw6vj",
  "issns": [
    "1435-2443",
    "1435-2451"
  ],
  "landing_url": "https://doi.org/10.1007/s00423-026-04193-1",
  "language": "en",
  "licence": "CC-BY-NC-ND-4.0",
  "licence_label": "CC BY-NC-ND 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by-nc-nd/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "heading",
      "Research"
    ],
    [
      "openalex",
      "2730|Gastric Cancer Management and Outcomes"
    ]
  ],
  "openalex": "W7201881366",
  "pdf_url": null,
  "pmcid": "PMC13736466",
  "pmid": "42982886",
  "published": "2026-08-07",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/6rjv08qgjw6vj.ris",
  "sources": [
    {
      "first_seen": "2026-11-09T12:21:54Z",
      "native_id": "PMC13736466",
      "source": "pmc",
      "url": "https://doi.org/10.1007/s00423-026-04193-1"
    }
  ],
  "subjects": [
    {
      "field": "medicine",
      "origin": "openalex:2730|Gastric Cancer Management and Outcomes",
      "subfield": "oncology"
    }
  ],
  "title": "Introduction of robot-assisted double-flap esophagogastrostomy after proximal gastrectomy: an exploratory comparison with side-overlap reconstruction",
  "title_text": "Introduction of robot-assisted double-flap esophagogastrostomy after proximal gastrectomy: an exploratory comparison with side-overlap reconstruction",
  "type": "peer-reviewed",
  "updated_at": "2026-11-09T12:21:54Z",
  "url": "https://research.draconitic.com/paper/6rjv08qgjw6vj",
  "venue": "Langenbeck's Archives of Surgery",
  "versions": []
}