Found 257 clinical trials
Complete Functional Assessment of Intermediate Coronary Artery Stenosis Before and After Transcatheter Aortic Valve Implantation (TAVI) in Patients With Severe Symptomatic Aortic Valve Stenosis (CHOICE-FR)
The purpose of the current study is to assess complete coronary physiology (FFR, RFR, CFR, IMR, and CT-FFR) in TAVI candidates with intermediate coronary artery stenosis before and 6 months after TAVI. This aims to determine how TAVI affects coronary blood flow and coronary microcirculatory function after longer-term follow-up, and …
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- 29 Nov, 2021
- 1 location
Balloon Lithoplasty for Preparation of Severely Calcified Coronary Lesions
Severely calcified coronary stenoses are difficult to treat with percutaneous coronary intervention (PCI) using current techniques and there is little specific evidence on how to best treat these cases.
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- 16 Feb, 2024
- 6 locations
Impact of Mitral Regurgitation on Coronary Haemodynamics and Instantaneous Effect of Transcatheter Mitral Valve Repair
In the present study, the investigators aim to use the in-vivo Transcatheter Mitral Valve Repair (TMVR) model to determine how Mitral Regurgitation (MR) affects coronary hemodynamics in patients affected with severe MR and concomittant angiographically-documented coronary artery disease. The investigators will also provide unique physiologic data on the acute effect …
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- 16 Feb, 2024
- 1 location
Resting Full-cycle Flow Ratio (RFR) Versus Angiography to Guide Revascularization Strategy in Patients Undergoing Coronary Artery By-pass Grafting (CABG)
Resting full-cycle Flow Ratio (RFR) is a measurement performed to evaluate the hemodynamic severity of coronary stenosis. Differently from FFR which is a measurement performed in maximal hyperemia, the RFR is a measurement that is performed in rest and therefore may predict better than FFR the baseline equilibriums that could …
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- 05 Aug, 2020
Complex All-comers and Patients With Diabetes or Prediabetes Treated With Xience Sierra Everolimus-eluting Stents
Drug eluting stents (DES) are widely used for treatment of coronary artery lesions. The Xience Sierra stent has a refined design of the metal stent backbone and is used in patients with various clinical syndromes and in different lesions. Clinical outcome of patients with previously unknown (silent) diabetes and prediabetes …
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- 16 Feb, 2024
- 2 locations
Effect of FFRCT-angio in Functional Diagnosis of Coronary Artery Stenosis
Coronary CT angiography (CTA) or invasive coronary angiography (CAG) is usually performed to evaluate the severity of coronary stenosis depending on the probability of CAD. However, the stenosis severity is not closely corresponding with the hemodynamic significance in coronary arteries.
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- 05 Aug, 2020
COronary and MICrocirculatory Measurements in Patients With Aortic Valve Stenosis.
Using this technology, we will simultaneously evaluate the hemodynamic significance of coronary stenoses (using FFR and a NHPR - Resting Full cycle Ratio [RFR]) and the microcirculatory function (Index of Microcirculatory Resistance, IMR) in patients with AS and CAD prior to SAVR/TAVI.
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- 16 Feb, 2024
- 1 location