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The Impact of Preoperative Quantitative Flow Reserve (QFR) on Early Postoperative Radial Artery Graft Outcomes in Coronary Artery Bypass Grafting (QFR-RADIAL)

22. juni 2026 opdateret af: Peking University Third Hospital

The goal of this observational study is to learn about the long-term effects of Quantitative Flow Reserve (QFR) assessment in patients undergoing Coronary Artery Bypass Grafting (CABG). The main question it aims to answer is:

Does preoperative QFR measurement improve graft outcomes and reduce major adverse cardiac and cerebrovascular events (MACE) in patients undergoing CABG?

Participants who are scheduled for CABG and have undergone preoperative QFR assessment will be followed for one year post-surgery. They will provide data on graft patency and report any occurrences of MACE through regular follow-up visits and questionnaires about their health status.

Studieoversigt

Status

Rekruttering

Betingelser

Intervention / Behandling

Undersøgelsestype

Observationel

Tilmelding (Anslået)

110

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

Studiesteder

  • Kina
    • Beijing Municipality
      • Beijing, Beijing Municipality, Kina, 100191
        • Rekruttering
        • Peking University Third Hospital
        • Kontakt:
        • Ledende efterforsker:
          • Yunpeng Ling, MD

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

  • Voksen
  • Ældre voksen

Tager imod sunde frivillige

Ingen

Prøveudtagningsmetode

Sandsynlighedsprøve

Studiebefolkning

This project aims to prospectively enroll patients undergoing coronary artery bypass grafting (CABG) utilizing the radial artery as a conduit at Peking University Third Hospital from January 2023 to September 2025.

Beskrivelse

Inclusion Criteria:

  • Patients aged 18 to 80 years.
  • Patients whose angina pectoris significantly affects daily life and work, and for whom conservative medical treatment is ineffective, requiring coronary artery bypass grafting (CABG).
  • Preoperative coronary angiography data are available for quantitative flow ratio (QFR) analysis.
  • Patients with severe stenosis, defined as greater than 70% stenosis, in the three main coronary artery branches, including the left anterior descending artery, circumflex artery, and right coronary artery, with or without left main coronary artery stenosis greater than 50%.

Exclusion Criteria:

  • Patients who cannot tolerate CABG due to comorbidities or complications.
  • Patients requiring urgent CABG or percutaneous coronary intervention (PCI).
  • Patients with significant congestive heart failure or hemodynamic instability.
  • Patients with a history of previous CABG or PCI within the past 6 months.
  • Patients who have experienced a stroke within the past 6 months.
  • Patients requiring concurrent cardiac procedures, such as valve surgery, maze surgery, radiofrequency ablation, or pacemaker implantation.
  • Patients with allergies to contrast agents or antiplatelet medications, or with contraindications to antiplatelet medications due to bleeding risks.
  • Patients with a significant history of bleeding, marked leukopenia, neutropenia, thrombocytopenia, anemia, or bleeding diathesis.
  • Patients currently participating in other prospective clinical studies.
  • Patients who are unwilling to participate in this study.

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
The patency of the graft vessels one year postoperatively.
Tidsramme: 12 months
The patency of the radial artery graft in subjects who underwent coronary artery bypass grafting (CABG) one year postoperatively was assessed using coronary computed tomography angiography (CCTA) or conventional angiography (CAG), and its functional status was evaluated. Patency was classified according to the FitzGibbon classification system: Grade A indicates widely patent grafts, Grade B indicates grafts with limited flow (stenosis < 50%), Grade S denotes the presence of string sign (stenosis > 50% at any location of the graft), and Grade O signifies graft occlusion. Grades S and O were considered indicative of graft failure. The angiographic/CTA evaluations were conducted by two clinical physicians who were blinded to the preoperative quantitative flow ratio (QFR) values.
12 months

Sekundære resultatmål

Resultatmål
Tidsramme
The incidence of major adverse cardiovascular and cerebrovascular events (MACCE) at one year post-surgery, including all-cause mortality, non-fatal myocardial infarction, non-fatal stroke, and repeat revascularization.
Tidsramme: 12 months
12 months

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Peking University Third Hospital

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

1. januar 2023

Primær færdiggørelse (Anslået)

31. december 2026

Studieafslutning (Anslået)

31. december 2026

Datoer for studieregistrering

Først indsendt

20. november 2025

Først indsendt, der opfyldte QC-kriterier

22. juni 2026

Først opslået (Faktiske)

25. juni 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

25. juni 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

22. juni 2026

Sidst verificeret

1. juni 2026

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • QFR-RADIAL
  • BYSYZD2023015 (Andet bevillings-/finansieringsnummer: Peking university third hospital)

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

INGEN

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

Studerer et amerikansk FDA-reguleret lægemiddelprodukt

Ingen

Studerer et amerikansk FDA-reguleret enhedsprodukt

Ingen

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Placeringer

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