View clinical trials related to Coronary Stenosis.
Filter by:The goal of this observational study is to learn about correlation between traditional risk factors and emerging risk factors on the progression of non-target coronary lesions in patients with non-target lesions on at least two coronary angiographies at the First Affiliated Hospital of Shandong First Medical University. The main question it aims to answer is what the correlation between emerging risk factors and progression of coronary non-target lesions, and try to explore the powerful predictors of progression of coronary non-target lesions and cardiovascular events. Participants will be divided into two groups based on coronary angiography results: 1. progress group:There is at least one major coronary artery (left main artery, left anterior descending artery, left circumflex artery or the right coronary artery) had non-target lesions, and the coronary artery stenosis rate reached the progressive level on follow-up angiography. 2. Non-progress groups: On repeat angiography, the rate of coronary stenosis did not reach progressive levels.
Percutaneous coronary intervention (PCI) encounters challenges with calcified coronary lesions, leading to potential issues such as failed balloon dilatation, incomplete stent expansion, and increased risks of adverse events post-PCI, including stent restenosis and thrombosis. Intravascular lithotripsy (IVL), a novel approach for severely calcified coronary lesion preparation, has shown promising preliminary outcomes. Combining IVL with conventional approaches, such as Rotational atherectomy (RA), non-compliant balloons, or cutting balloons, may associated with additional benefit than conventional approaches only in terms of better stent expansion and lower long-term adverse events. This pilot randomized trial aims to investigate whether combining IVL to conventional therapy surpasses the efficacy of conventional approaches alone. The primary effectiveness endpoint is final stent expansion assessed by post-procedure optical coherence tomography (OCT), and the primary safety endpoint is target lesion failure (TVF). The trial seeks to provide valuable insights into the optimal approach for managing severely calcified coronary lesions during PCI.
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 goal of this study is to better understand when and where intraoperative transesophageal echocardiography (TEE) should (or should not) be used during coronary artery bypass graft (CABG) surgeries.
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.