View clinical trials related to Angioplasty, Balloon, Coronary.
Filter by:To describe the prevalence and clinical features of patients with severe aortic stenosis undergoing TAVI and concomitant clinically indicated, complex and/or high-risk PCI
The aim of this study is to investigate the role of functional evaluation for predicting clinical outcome in patients with coronary chronic total occlusion (CTO) undergoing percutaneous coronary intervention (PCI), and to evaluate the clinical evidence for the using of fractional flow reserve (FFR), coronary flow reserve (CFR), index of myocardial resistance (IMR) and dynamic single photon emission computed tomography (D-SPECT) in these patients.
This is a First In Man study with the aim to know the safety and effectiveness of a novel bare metal stent (INC-1) in the treatment of de novo coronary lesions in patients with stable coronary angina and unique coronary lessions.
The purpose of this study is to observe and evaluate the performance of a Sirolimus-eluting Drug Coated Balloon for the treatment of any type of coronary lesions, including native vessel disease and in stent restenosis.
This study evaluates the efficacy of Prasugrel and Ticagrelor in the treatment of acute myocardial infarction.
Contrast-induced nephropathy has become the third-largest cause of hospital acquired acute renal injury, and which morbidity is only less than that of renal hypoperfusion and renal toxicity of drugs, about 11%of all cases. Pathophysiologic mechanisms of contrast-induced nephropathy(CIN) is not entirely clear yet. May be associated with renal hemodynamic changes, medullary ischemia because of renal blood flow reduction, oxidative stress, endothelial dysfunction ,contrast agents damage the epithelium of renal tubular directly and so on. Currently the studies have proved that inflammation(CRP, TNF-α and NF-қB) played a role in CIN.It is well-know that the hyperhomocysteinemia(HHCY) is a independent risk factor for cardiovascular diseases, which has pro-inflammatory effects. Researches showed that Hcy stimulated CRP generation by the NMDAr-ROS-ERK1 / 2 / p38-NF-қB signaling pathway and triggered inflammatory response. We will compare the CIN incidence of different plasma Hcy levels in adults hypertensive patients undergoing coronary artery diagnosis and treatment(CAG and PCI). CIN was defined as an absolute ≥0.5mg/dl or a relative ≥25% increase in the serum creatinine level at 48 hours after the procedure. The relationship between decreased plasma Hcy levels and blood pressure values by using Enalapril Maleate and Folic Acid Tablets(as the program-based antihypertension) and recovery of CIN has been observed. Using univariate and multivariate Logistic regression to analyse the relationship between HHcy and CIN, and taking receiver operating characteristic (ROC) curve to select the best Hcy plasma levels that which can predict the CIN and the probability. This study will help us to understand the relationship between HHcy and CIN that course of the procedure in adults hypertensive patients, preoperative plasma Hcy levels can predict the incidence of CIN and whether Enalapril Maleate Folic Acid tablets can reduce the CIN of hypertensive patients with HHcy. Which has important clinical significance. This study also offer feasibility for further research that HHcy plays a role in pathogenesis and specific signaling pathways of CIN.
The newer generation ZES (Medtronic, Minneapolis, MN, Resolute Integrity) and EES (Abbott Vascular, Abbott Park, Illinois, Xience Prime) were introduced to South Korea. Although these are thought to be superior in effect and stability compared to ZES and EES of previous generation, there are few clinical data regarding the high risk groups of diabetes patients or small vessels lesion. Moreover, looking at the 8.3% of restenosis in Resolute All Comer study (23% diabetes), the investigators could not know the outcome in high risk patients such as diabetes or small vessels lesion. Therefore, the aim of this study is to investigate the effectiveness and safety of Resolute Integrity or Xience Prime in diabetes or small vessels lesion patients.