Evidence map›Paper›PMID 31606176›Full record

SynthesisThe Journal of thoracic and cardiovascular surgery2020

Development of a risk score for early saphenous vein graft failure: An individual patient data meta-analysis.

Alexios S Antonopoulos, Ayodele Odutayo, Evangelos K Oikonomou, Marialena Trivella, Mario Petrou, Gary S Collins, Charalambos Antoniades, SAFINOUS-CABG (Saphenous Vein Graft Failure—An Outcomes Study in Coronary Artery Bypass Grafting) group

Registry-linked trialAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in The Journal of thoracic and cardiovascular surgery, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05129228 (Intraoperative Optical Coherence Tomography of the Saphenous Vein Conduit in Patients Undergoing Coronary Artery Bypass Surgery), which is not on this map. Cited by 24 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from 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.

2 · The registry

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.

NCT05129228 naunknown statusnot on this mapstarted 2022, after this paper: background citation

Intraoperative Optical Coherence Tomography of the Saphenous Vein Conduit in Patients Undergoing Coronary Artery Bypass Surgery

TypeinterventionalSponsorSt. Francis Hospital, New YorkRan2022 to 2026Enrolled760ConditionsCoronary Bypass Graft StenosisArmsOCT-guided saphenous vein CABG
3 · Its place in the literature

Who cites it

24 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Trial
  3. Trial
  4. Article
  5. Article
  6. Article
  7. The Effect of Smoking on the Activated Clotting Time and the Incidence of Complications in Noncardiac Arterial Procedures.Journal of endovascular therapy : an official journal of the International Society of Endovascular Specialists · 2025
    Article
  8. Review
  9. Article
  10. Review
  11. External stenting for saphenous vein grafts reduces early postoperative graft failure.Interdisciplinary cardiovascular and thoracic surgery · 2024
    Article
  12. Outcomes after surgical revascularization in diabetic patients.Interdisciplinary cardiovascular and thoracic surgery · 2024
    Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Commentary: Ticagrelor monotherapy-Not for CABG?Journal of cardiac surgery · 2022
    Article
  18. Article
  19. Article
  20. Observational
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors.

Alexios S AntonopoulosDivision of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom.
Ayodele OdutayoCentre for Statistics in Medicine, University of Oxford, Oxford, United Kingdom.
Evangelos K OikonomouDivision of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom.
Marialena TrivellaCentre for Statistics in Medicine, University of Oxford, Oxford, United Kingdom.
Mario PetrouDepartment of Cardiac Surgery, John Radcliffe Hospital, Oxford University Hospitals NHS Trust, Oxford, United Kingdom.
Gary S CollinsCentre for Statistics in Medicine, University of Oxford, Oxford, United Kingdom.
Charalambos AntoniadesDivision of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom. Electronic address: antoniad@well.ox.ac.uk.
SAFINOUS-CABG (Saphenous Vein Graft Failure—An Outcomes Study in Coronary Artery Bypass Grafting) group

Funding

British Heart Foundation FS/16/15/32047British Heart Foundation PG/13/56/30383British Heart Foundation PG/17/49/33099British Heart Foundation SP/17/16/33519British Heart Foundation TG/16/3/32687Cancer Research UK 27294
6 · The paper itself

Abstract

objectivesEarly saphenous vein graft (SVG) occlusion is typically attributed to technical factors. We aimed at exploring clinical, anatomical, and operative factors associated with the risk of early SVG occlusion (within 12 months postsurgery).

methodsPublished literature in MEDLINE was searched for studies reporting the incidence of early SVG occlusion. Individual patient data (IPD) on early SVG occlusion were used from the SAFINOUS-CABG Consortium. A derivation (n = 1492 patients) and validation (n = 372 patients) cohort were used for model training (with 10-fold cross-validation) and external validation respectively.

resultsIn aggregate data meta-analysis (48 studies, 41,530 SVGs) the pooled estimate for early SVG occlusion was 11%. The developed IPD model for early SVG occlusion, which included clinical, anatomical, and operative characteristics (age, sex, dyslipidemia, diabetes mellitus, smoking, serum creatinine, endoscopic vein harvesting, use of complex grafts, grafted target vessel, and number of SVGs), had good performance in the derivation (c-index = 0.744; 95% confidence interval [CI], 0.701-0.774) and validation cohort (c-index = 0.734; 95% CI, 0.659-0.809). Based on this model. we constructed a simplified 12-variable risk score system (SAFINOUS score) with good performance for early SVG occlusion (c-index = 0.700, 95% CI, 0.684-0.716).

conclusionsFrom a large international IPD collaboration, we developed a novel risk score to assess the individualized risk for early SVG occlusion. The SAFINOUS risk score could be used to identify patients that are more likely to benefit from aggressive treatment strategies.

Indexed as

Blood Vessel Prosthesis ImplantationAdultAgedAged, 80 and overFemaleGraft Occlusion, VascularHumansIncidenceMaleMiddle AgedModels, StatisticalRisk FactorsSaphenous VeinTreatment Failurecoronary artery bypass graftingindividual patient meta-analysispatencyprediction modelsaphenous vein graft

Identifiers

PMID31606176
PMCPMC7322547

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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.