Fractional flow reserve successfully predicts ischemic stenoses
نویسندگان
چکیده
منابع مشابه
Impact of Right Atrial Pressure on Fractional Flow Reserve Measurements: Comparison of Fractional Flow Reserve and Myocardial Fractional Flow Reserve in 1,600 Coronary Stenoses.
OBJECTIVES This study sought to assess the impact of a wide range of mean right atrial pressure (Pra) on fractional flow reserve (FFR) measurements. BACKGROUND FFR invasively assesses the ischemic potential of coronary stenoses. FFR is calculated as the ratio of mean distal coronary pressure (Pd) to mean aortic pressure (Pa) during maximal hyperemia. The Pra is considered to have little impac...
متن کاملDiastolic fractional flow reserve to assess the functional severity of moderate coronary artery stenoses: comparison with fractional flow reserve and coronary flow velocity reserve.
BACKGROUND Coronary blood flow occurs mainly during the diastolic phase of each cardiac cycle and is mainly dependent on diastolic driving pressure, especially in the left anterior descending coronary artery (LAD). We hypothesized that calculation of the ratio of the diastolic driving pressure of a stenotic LAD to its normal value, namely diastolic FFR (d-FFR), might provide precise insight int...
متن کاملFractional Flow Reserve
Traditionally, coronary artery disease was assessed using coronary angiographic guidance. Significant lesions were determined by the coronary angiographer. However, interobserver variability showed a significant limitation of interpretation of coronary angiography. Stent deployment and apposition were also evaluated based on angiographic appearance only. Risk factors for stent thrombosis and in...
متن کاملEvolving concepts of angiogram: fractional flow reserve discordances in 4000 coronary stenoses.
AIMS The present analysis addresses the potential clinical and physiologic significance of discordance in severity of coronary artery disease between the angiogram and fractional flow reserve (FFR) in a large and unselected patient population. METHODS AND RESULTS Between September 1999 and December 2011, FFR and percent diameter stenosis (DS) as assessed by quantitative coronary angiography w...
متن کاملFractional Flow Reserve in Angiographically Insignificant Stenoses: Unmasking the Lesion or Creating Disease?
F rom earliest days of coronary angiography, we have been seeking hemodynamic confirmation of what our eyes tell us in the laboratory. Even before the clinical outcomes for patients undergoing percutaneous transluminal coronary angioplasty were barely known (and certainly before the manufacture of dedicated pressure-sensor guidewires), Gr€untzig made efforts to measure the transstenotic pressur...
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ژورنال
عنوان ژورنال: Nature Reviews Cardiology
سال: 2010
ISSN: 1759-5002,1759-5010
DOI: 10.1038/nrcardio.2010.110