{
  "abstract": "Objectives\n\nThis study compared angiographic patency and clinical outcomes between patients who received saphenous vein (SV) grafts from the upper leg (UL) and those who received grafts from the lower leg (LL) for coronary artery bypass grafting (CABG).Methods\n\nA total of 1630 patients who received primary isolated off-pump CABG using the SV harvested via the no-touch technique from the UL (UL group, n = 203) or the LL (LL group, n = 1427) were enrolled in this study. Propensity score matching was performed, and 202 pairs were matched. Early, 1-year, and 5-year graft angiograms were obtained for 99.5%, 85.7%, and 31.2% of the cohort, respectively. The median follow-up duration was 85.8 months. The primary outcome was midterm angiographic patency, and the secondary outcomes were midterm clinical outcomes.Results\n\nThere was no significant difference in baseline characteristics between the matched groups. Early clinical outcomes, including operative mortality (0.8%, 13 out of 1630), demonstrated no intergroup differences. Angiographic patency for SV grafts was not significantly different at early (98.3% vs 98.5% in the UL group vs the LL group, P = .80), 1-year (94.8% vs 95.4% in the UL group vs the LL group, P = .74), or 5-year evaluation (97.8% vs 96.0% in the UL group vs the LL group, P = .43). Midterm survival up to 7 years was comparable between the groups (P = .81).Conclusions\n\nSV grafts from the UL demonstrated comparable 5-year angiographic patency and 7-year clinical outcomes compared with those from the LL during off-pump CABG.",
  "abstract_shown": true,
  "affiliations": [
    "Department of Thoracic and Cardiovascular Surgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea."
  ],
  "article_type": "research article",
  "arxiv": null,
  "author_total": 7,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Suk Ho Sohn"
    },
    {
      "affs": [
        0
      ],
      "name": "Hee Ju Hong"
    },
    {
      "affs": [
        0
      ],
      "name": "Suji Oh"
    },
    {
      "affs": [
        0
      ],
      "name": "Yuri Lee"
    },
    {
      "affs": [
        0
      ],
      "name": "Yoonjin Kang"
    },
    {
      "affs": [
        0
      ],
      "name": "Jae Woong Choi"
    },
    {
      "affs": [
        0
      ],
      "name": "Ho Young Hwang"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/8vxywb5gvskek.bib",
  "cited_by": 0,
  "doi": "10.1016/j.xjon.2026.102079",
  "fulltext_url": "https://europepmc.org/articles/PMC13711313",
  "id": "8vxywb5gvskek",
  "issns": [
    "2666-2736"
  ],
  "landing_url": "https://europepmc.org/article/MED/42948530",
  "language": "eng",
  "licence": "CC-BY",
  "licence_label": "CC BY",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "heading",
      "Adult: Coronary"
    ],
    [
      "openalex",
      "2746|Cardiac and Coronary Surgery Techniques"
    ]
  ],
  "openalex": "W7204012751",
  "pdf_url": "https://europepmc.org/articles/PMC13711313?pdf=render",
  "pmcid": "PMC13711313",
  "pmid": "42948530",
  "published": "2026-08-22",
  "publisher": "Elsevier",
  "ris": "https://research.draconitic.com/paper/8vxywb5gvskek.ris",
  "sources": [
    {
      "first_seen": "2026-10-31T00:20:35Z",
      "native_id": "MED:42948530",
      "source": "europepmc",
      "url": "https://europepmc.org/article/MED/42948530"
    },
    {
      "first_seen": "2026-10-31T12:22:07Z",
      "native_id": "PMC13711313",
      "source": "pmc",
      "url": "https://doi.org/10.1016/j.xjon.2026.102079"
    }
  ],
  "subjects": [
    {
      "field": "medicine",
      "origin": "openalex:2746|Cardiac and Coronary Surgery Techniques",
      "subfield": "surgery"
    }
  ],
  "title": "Saphenous vein grafts from thigh versus calf: Comparison of angiographic patency and clinical outcomes.",
  "title_text": "Saphenous vein grafts from thigh versus calf: Comparison of angiographic patency and clinical outcomes.",
  "type": "peer-reviewed",
  "updated_at": "2026-10-31T12:22:07Z",
  "url": "https://research.draconitic.com/paper/8vxywb5gvskek",
  "venue": "JTCVS open",
  "versions": []
}