{
  "abstract": "BACKGROUND: Reliable preoperative risk assessment is essential in cardiac surgery. In Japan, coronary artery bypass grafting (CABG) risk models have been developed from the Japan Cardiovascular Surgery Database - Adult section (JCVSD-A), with JapanSCORE I and II released previously. To reflect contemporary practice, we developed and validated JapanSCORE III, an updated risk model for isolated CABG, using JCVSD-A. METHODS AND RESULTS: We identified patients undergoing isolated CABG between 2018 and 2023 in the JCVSD-A. The dataset was temporally split into development (2018-2022) and validation (2023) cohorts. A least absolute shrinkage and selection operator model was developed to predict operative mortality, incorporating imaging-based predictors and clinically relevant factors. Secondary outcome models were constructed for stroke, reoperation, prolonged ventilation, renal failure, deep sternal wound infection (DSWI), gastrointestinal complications, and intensive care unit stay >7 days. Model performance was assessed by areas under the curve (AUC) and calibration plots. Among 70,180 patients (mean age 69.3 years; 20% women), operative mortality was 2.7%. The incidence of stroke, reoperation, prolonged ventilation, renal failure, DSWI, gastrointestinal complications, and prolonged ICU stay was 1.8%, 1.5%, 3.7%, 2.0%, 1.1%, 1.3%, and 13.2%, respectively. Operative mortality and renal failure models demonstrated good discrimination (AUC >0.8) and calibration in validation. CONCLUSIONS: Operative outcomes remained stable despite increasing predicted risk. The JapanSCORE III models showed good predictive performance, providing valid tools for preoperative risk stratification.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": null,
  "author_total": 6,
  "authors": [
    {
      "name": "Sachiko Hayashi"
    },
    {
      "name": "Hiraku Kumamaru"
    },
    {
      "name": "Shiori Nishimura"
    },
    {
      "name": "Aya Saito"
    },
    {
      "name": "Hideyuki Shimizu"
    },
    {
      "name": "Noboru Motomura"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/brvmra5h1k5ty.bib",
  "cited_by": 0,
  "doi": "10.1253/circj.cj-26-0160",
  "fulltext_url": "https://www.jstage.jst.go.jp/article/circj/advpub/0/advpub_CJ-26-0160/_article",
  "id": "brvmra5h1k5ty",
  "issns": [
    "1347-4820",
    "1346-9843"
  ],
  "landing_url": "https://www.jstage.jst.go.jp/article/circj/advpub/0/advpub_CJ-26-0160/_article",
  "language": null,
  "licence": "CC-BY-NC-ND",
  "licence_label": "CC BY-NC-ND",
  "licence_source": "journal",
  "licence_url": "https://creativecommons.org/licenses/by-nc-nd/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "jstage-journal",
      "medicine/cardiovascular"
    ],
    [
      "openalex",
      "2746|Cardiac and Coronary Surgery Techniques"
    ]
  ],
  "openalex": "W7204911695",
  "pdf_url": "https://www.jstage.jst.go.jp/article/circj/advpub/0/advpub_CJ-26-0160/_pdf",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-02",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/brvmra5h1k5ty.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:24Z",
      "native_id": "10.1253/circj.cj-26-0160",
      "source": "jstage",
      "url": "https://www.jstage.jst.go.jp/article/circj/advpub/0/advpub_CJ-26-0160/_article"
    }
  ],
  "subjects": [
    {
      "field": "medicine",
      "origin": "openalex:2746|Cardiac and Coronary Surgery Techniques",
      "subfield": "surgery"
    }
  ],
  "title": "Development and Validation of Risk Models for Outcomes of Isolated Coronary Artery Bypass Grafting ― A Nationwide Analysis in Japan ―",
  "title_text": "Development and Validation of Risk Models for Outcomes of Isolated Coronary Artery Bypass Grafting ― A Nationwide Analysis in Japan ―",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:17:24Z",
  "url": "https://research.draconitic.com/paper/brvmra5h1k5ty",
  "venue": "Circulation Journal",
  "versions": []
}