View clinical trials related to Coronary Stenosis.
Filter by:The present clinical study aims to identify transcriptomic patterns derived from whole blood samples related to coronary atherotic burden. Additionally, as a secondary analysis, the research team will explore the algorithm's ability to detect the presence of aortic disease and pro-inflammatory cardiometabolic alterations, such as hepatic steatosis and surrogate markers of coronary inflammation.
The purpose of this study is to determine the efficacy, safety, and cost-effectiveness of AI-Gatekeeper software to assist clinicians in the diagnosis of coronary artery disease by predicting coronary artery stenosis (≥50%) from a multimodal AI technology that integrates clinical risk factors and baseline blood tests, including chest X-ray, electrocardiogram, and echocardiogram, in patients with suspected coronary artery disease (coronary stenosis).
The objective of this study is to evaluate the effectiveness and safety of Coroflex ISAR NEO stents in comparison to other drug-eluting stents (DES) in real-world practice.
This is a prospective, multi-center, single-arm, open-label, early feasibility study to provide preliminary evidence for the safety and efficacy of the novel IoNIR stent system
Patients with type 2 diabetes and moderate to severe coronary artery stenosis who were treated at Zhejiang Second Hospital and cooperative hospitals were randomly divided into a patient management group based on continuous continuous glucose monitoring (CGM) or a patient management group based on HbA1c. Both groups controlled cardiovascular risk factors according to the Chinese Guidelines for the Prevention and Treatment of Type 2 Diabetes (2020) and the ADA Guidelines for the Prevention and Treatment of Diabetes (2023), and conducted HbA1c testing every 3 months. In the CGM-based glucose management group, CGM measurements will be performed at baseline and at 6, 12, 18, and 24 months. In the CGM-guided treatment group, the target TIR>70%, TBR<4%, TAR<25%, and HbA1c<7.0%; in the HbA1c-guided treatment group, the target HbA1c<7.0%. The primary endpoint was major adverse cardiovascular events (MACE: CV death, nonfatal myocardial infarction, nonfatal stroke).
This is a prospective, observational, single-center study. The main purpose of this study is to evaluate the diagnostic accuracy of offline computational ultrasonic flow ratio (UFR) in predicting functionally significant left main (LM) coronary stenosis with conventional pressure wire-based fractional flow reserve (FFR) as the standard reference. The study will be conducted in Fuwai Hospital, and a total of 120 patients with intermediated left main coronary vessel diameter stenosis ≥30% and ≤80% are planned to be recruited. Participants who meet the inclusion criteria and do not meet the exclusion criteria will undergo intravascular ultrasound (IVUS) followed by FFR examination. IVUS imaging will be sent to an independent core laboratory for UFR calculation. UFR analyses were performed offline in a blinded fashion without awareness of FFR measurement. Using FFR≤0.80 as the gold standard, the sensitivity and specificity of UFR in the functional significance of left main coronary artery stenosis will be analyzed.
This is a prospective, single-center study. The primary purpose of this study is to evaluate the sensitivity and specificity of offline computational ultrasonic flow ratio (UFR) with conventional pressure wire-based fractional flow reserve (FFR) as the standard reference. The study will be conducted in Fuwai Hospital, and a total of 408 patients with coronary vessel diameter stenosis ≥30% and ≤80% are planned to be recruited. Participants who meet the inclusion criteria and do not meet the exclusion criteria will undergo intravascular ultrasound (IVUS) followed by FFR examination. IVUS imaging will be sent to an independent core laboratory for UFR calculation. UFR analyses were performed offline in a blinded fashion without awareness of FFR measurement. Using FFR≤0.80 as the gold standard, the sensitivity and specificity of UFR in the functional significance of coronary artery stenosis will be analyzed.
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.