ArticleCirculation2016
Significance of Intermediate Values of Fractional Flow Reserve in Patients With Coronary Artery Disease.
Article in Circulation, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 52 papers.
What it found
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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.
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.
Validation Of Quantitative Flow Ratio (QFR) - Derived Virtual Angioplasty
Effects of Guiding Catheter on Fractional Flow Reserve and Non-Hyperemic Pressure Ratios for the Assessment of Coronary Artery Stenoses - Disengage @Rest
Who cites it
52 citing papers in PubMed.
- Angiographic Quantitative Flow Ratio-Guided Treatment of Patients With Physiologically Intermediate Coronary Lesions.Journal of the American Heart Association · 2025Trial
- Percutaneous coronary intervention versus medical therapy in patients with angina and grey-zone fractional flow reserve values: a randomised clinical trial.Heart (British Cardiac Society) · 2020Trial
- Effects of Pulsatile Flow on Fractional Flow Reserve Assessed Using a Reduced-Order Model.Annals of biomedical engineering · 2026Article
- Beyond borderline physiology: determinants of treatment choice and phenotypes of outcome in QFR grey-zone lesions.Cardiovascular diagnosis and therapy · 2026Article
- Visual-physiological concordance and target vessel outcomes: a μQFR-based real-world cohort study.Frontiers in cardiovascular medicine · 2026Article
- The Quantitative Flow Ratio Uncertainty-Zone: Finding Certainty Within Uncertainty.Journal of the American Heart Association · 2025Article
- Influence of virtual monoenergetic reconstructions on coronary CT angiography-based fractional flow reserve with photon-counting detector CT: intra-individual comparison with energy-integrating detector CT.Insights into imaging · 2025Article
- Prognostic Implication of Computational Angiography-Derived Fractional Flow Reserve in Patients With Nonobstructive Coronary Artery Disease.Journal of the American Heart Association · 2025Article
- Prognostic value of baseline QFR in single-vessel intermediate coronary stenosis.Frontiers in cardiovascular medicine · 2025Article
- Prognostic Role of Functional SYNTAX Score Based on Quantitative Flow Ratio.Biomedicines · 2024Article
- Prediction of functional coronary stenosis by computed tomography-derived fractional flow reserve in surgical revascularization.JTCVS open · 2024Article
- Computed Tomography-Derived Fractional Flow Reserve: Developing A Gold Standard for Coronary Artery Disease Diagnostics.Reviews in cardiovascular medicine · 2024Review
- Role of physiology in the management of multivessel disease among patients with acute coronary syndrome.AsiaIntervention · 2024Review
- The Role of Fluid Mechanics in Coronary Atherosclerotic Plaques: An Up-to-Date Review.Reviews in cardiovascular medicine · 2024Review
- Left Main Coronary Artery Disease: A Contemporary Review of Diagnosis and Management.Reviews in cardiovascular medicine · 2024Review
- Simulation of coronary capillary transit time based on full vascular model of the heart.Computer methods and programs in biomedicine · 2024Article
- Validation of Quantitative Flow Ratio-Derived Virtual Angioplasty with Post-Angioplasty Fractional Flow Reserve-The QIMERA-I Study.Journal of cardiovascular development and disease · 2023Article
- Intravascular Imaging versus Physiological Assessment versus Biomechanics-Which Is a Better Guide for Coronary Revascularization.Diagnostics (Basel, Switzerland) · 2023Review
- Insufficient adenosine-induced hyperemia is a major determinant of discordance between non-hyperemic pressure ratio and fractional flow reserve.Scientific reports · 2023Article
- Impact of the downstream myocardial mass on values of coronary microvascular resistance.Physiological reports · 2022Article
Corrections and comments
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Authors and funding
12 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe fractional flow reserve (FFR) value of 0.75 has been validated against ischemic testing, whereas the FFR value of 0.80 has been widely accepted to guide clinical decision making. However, revascularization when FFR is 0.76 to 0.80, within the so-called gray zone, is still debatable. METHODS AND
resultsFrom February 1997 to June 2013, all patients with single-segment disease and an FFR value within the gray zone or within the 2 neighboring FFR strata (0.70-0.75 and 0.81-0.85) were included. Study end points consisted of major adverse cardiovascular events (death, myocardial infarction, and any revascularization) up to 5 years. Of 17 380 FFR measurements, 1459 patients were included. Of them, 449 patients were treated with revascularization and 1010 patients were treated with medical therapy. In the gray zone, the major adverse cardiovascular events rate was similar (37 [13.9%] versus 21 [11.2%], respectively; P=0.3) between medical therapy and revascularization, whereas a strong trend toward a higher rate of death or myocardial infarction (25 [9.4] versus 9 [4.8], P=0.06) and overall death (20 [7.5] versus 6 [3.2], P=0.059) was observed in the medical therapy group. Among medical therapy patients, a significant step-up increase in major adverse cardiovascular events rate was observed across the 3 FFR strata, especially with proximal lesion location. In revascularization patients, the major adverse cardiovascular events rate was not different across the 3 FFR strata.
conclusionsFFR in and around the gray zone bears a major prognostic value, especially in proximal lesions. These data confirm that FFR≤0.80 is valid to guide clinical decision making.
Indexed as
Identifiers
26733607What Socratic holds
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 Socratic graph.