CBS 2019
CBSMD教育中心
中 文

Fractional Flow Reserve

Abstract

Recommended Article

Coronary Physiology in the Cardiac Catheterization Laboratory Prognostic Implication of Thermodilution Coronary Flow Reserve in Patients Undergoing Fractional Flow Reserve Measurement Impact of Percutaneous Revascularization on Exercise Hemodynamics in Patients With Stable Coronary Disease Correlation between frequency-domain optical coherence tomography and fractional flow reserve in angiographically-intermediate coronary lesions Functional and morphological assessment of side branch after left main coronary artery bifurcation stenting with cross-over technique Diagnostic accuracy of instantaneous wave free-ratio in clinical practice Blinded Physiological Assessment of Residual Ischemia After Successful Angiographic Percutaneous Coronary Intervention: The DEFINE PCI Study Coronary Microcirculation Downstream Non-Infarct-Related Arteries in the Subacute Phase of Myocardial Infarction: Implications for Physiology-Guided Revascularization

Clinical Trial2021 Jul 16;ehab444.

JOURNAL:Eur Heart J. Article Link

Fractional flow reserve derived from computed tomography coronary angiography in the assessment and management of stable chest pain: the FORECAST randomized trial

N Curzen, Z Nicholas, FORECAST Investigators et al. Keywords: computed tomography coronary angiography; cost analysis; FFR; myocardial; quality of life; RCT; stable angina

ABSTRACT

AIMS - Fractional flow reserve (FFRCT) using computed tomography coronary angiography (CTCA) determines both the presence of coronary artery disease and vessel-specific ischaemia. We tested whether an evaluation strategy based on FFRCT would improve economic and clinical outcomes compared with standard care.

 

METHODS AND RESULTS - Overall, 1400 patients with stable chest pain in 11 centres were randomized to initial testing with CTCA with selective FFRCT (experimental group) or standard clinical care pathways (standard group). The primary endpoint was total cardiac costs at 9 months; secondary endpoints were angina status, quality of life, major adverse cardiac and cerebrovascular events, and use of invasive coronary angiography. Randomized patients were similar at baseline. Most patients had an initial CTCA: 439 (63%) in the standard group vs. 674 (96%) in the experimental group, 254 of whom (38%) underwent FFRCT. Mean total cardiac costs were higher by £114 (+8%) in the experimental group, with a 95% confidence interval from -£112 (-8%) to +£337 (+23%), though the difference was not significant (P = 0.10). Major adverse cardiac and cerebrovascular events did not differ significantly (10.2% in the experimental group vs. 10.6% in the standard group) and angina and quality of life improved to a similar degree over follow-up in both randomized groups. Invasive angiography was reduced significantly in the experimental group (19% vs. 25%, P = 0.01).

 

CONCLUSION - A strategy of CTCA with selective FFRCT in patients with stable angina did not differ significantly from standard clinical care pathways in cost or clinical outcomes, but did reduce the use of invasive coronary angiography.