View clinical trials related to Coronary Stenosis.
Filter by:Coronary angiography-derived FFR assessment (AngioQFA) is a novel technique for physiological lesion assessment based on 3-dimensional (3D) quantitative coronary angiography (QCA) and virtual hyperemic flow derived from contrast frame count without drug-induced hyperemia. The goal of this prospective, multicenter trial is to compare the diagnostic performance of AngioQFA with invasive FFR as the reference standard. The secondary purpose is to compare the diagnostic accuracies of the computational fluid dynamics (CFD)-based index of microcirculatory resistance (IMR) using wire-based IMR as the reference standard.
The present case-control study is designed to investigate the disease characteristics of IR-CAD by comparing the demographics, clinical features, lab results, imaging findings, and prior treatment between 20 patients with IR-CAD and 10 patients with AS-CAD.
This is a prospective, multi-center, single-group study aims to evaluate the safety and efficacy of Alveo HP Balloon Dilatation Catheter for balloon dilatation of coronary artery stenosis. Pre-dilation with Alveo balloon dilatation catheter followed by conventional PCI, and follow-up will be carried out. During the trial, the enrollment, treatment and follow-up of the subjects will be recorded, and the safety and efficacy of the investigational device will be evaluated.
Flavonoids are one of the main groups of polyphenols. Anthocyanins, which are a subgroup of the flavonoid family, are found in a number of fruits and some vegetables. In epidemiological studies, high dietary intake of polyphenols has been associated with improvement of some cardiometabolic risk factors in high-risk individuals. Furthermore, in controlled studies, consumption of polyphenol-rich food sources or anthocyanin extract supplementation has improved some cardiometabolic factors. In the present study, the effect of diet enriched with anthocyanin-rich food sources on cardiometabolic factors will be studied in coronary artery disease patients.
This is a long-term follow-up of a completed clinical trial which compared percutaneous coronary intervention (PCI) using sirolimus-eluting stents and coronary artery bypass grafting (CABG) in patients with unprotected left main coronary artery disease. The purpose of the study is to obtain retrospective long-term data on clinical outcome of the study population.
The HYUMC registry is a two-center, real-world registry of percutaneous coronary intervention in patients with coronary artery disease. From January 2012, PCI-treated patients from Hanyang University Seoul Hospitals and Hanyang University Guri Hospitals were enrolled in this registry. The aim of this registry is to examine the long-term clinical outcomes and identify predictors of adverse outcomes following percutaneous coronary intervention conducted at academic hospitals.
This is a self-controlled cohort study to evaluate the efficacy and safety of comprehensive treatment in patients with inflammation-associated rapidly-progressive coronary artery disease (IR-CAD) by comparing the study endpoints before treatment with those after treatment in the same group of patients.
Prospective, randomised, open-label, international multicenter trial to evaluate the safety and efficacy of drug-coated balloon (DCB) treatment compared to drug-eluting stenting (DES) in patients with large coronary artery disease.
It is well documented in the literature that myocardial revascularization during valve surgery increases the risk of early mortality and morbidity. According to the most recent version of the European Guidelines, the possibility of myocardial revascularization via coronary artery bypass should be evaluated in patients with an indication for surgical treatment of heart valve disease but with coronary artery stenosis ≥ 50-70%. In this study, patients hospitalized for surgical heart valve disease, with occasional pre-operative finding of ≥ 50-70% coronary artery stenosis, without angina, are examined. After interdisciplinary discussion in the Heart Team, it was decided not to treat coronary artery disease during valve surgery. The aim is to evaluate the short and medium-term results of this "conscious omission".
The objective of this randomized study was to compare outcomes of imaging-and physiology-guided state-of-the-art ercutaneous coronary intervention (PCI) to coronary artery bypass grafting (CABG) in patients with diabetes and three-vessel CAD (not involving left main).