View clinical trials related to Angina, Unstable.
Filter by:A multicenter, randomized clinical trial in elderly patients (over 80 years old) with unstable angina pectoris or Non-ST elevation myocardial infarction (NSTEMI). A total of 200 patients will be randomized to medical treatment (100 patients) or coronary angiography with revascularization if feasible (100 patients). Information regarding prior history, frailty, clinical presentation, in-hospital events, complications, angina, quality of life and mortality will be collected. Follow up time is 1 year.
Optical coherence tomography (OCT) after the stent procedure to improve the adhesion and expansion, or incomplete uncovered struts attached to the main track. OCT in clinical areas by improving the parameters of the best stent will be useful. However, for better results for optical coherence tomography in percutaneous interventions have little useful data on the role. Randomized controlled study of the traditional percutaneous coronary intervention and intervention using optical coherence tomography.
The purpose of this study is to determine whether preoperative loading dose atorvastatin can prevent perioperative myocardial infarction during angiography and main adverse cardiac events 1 month after operation in stable angina, unstable angina and acute non-ST-segment elevation myocardial infarction patients undergoing elective coronary angiography and PCI, and determine whether its mechanisms are associated with microcirculation resistance.
The new assay of troponins T (highly sensitive troponins) detects concentrations much lower than before. Few data are currently available on their kinetics during acute coronary syndrome, especially in regard to the correlation with CK MB. The aim of the present study is to describe the kinetic of highly sensitive troponins in acute coronary syndrome, to correlate it with the concentration of CK MB, and possibly to evaluate their prognostic value with respect to infarct size .
International guidelines support the use of a full-dose heparin (anticoagulants) during coronary intervention. However, a lower dose of heparin may be adequate, thanks to advances in angioplasty techniques and the widespread use of pretreatment with two antiplatelet agents. Thus the investigators designed a study comparing safety and efficacy of standard dose heparin (100 UI/Kg) versus low-dose (50 UI/Kg) in patients undergoing coronary angioplasty who are on aspirin and clopidogrel at the time of the procedure.
In this study, typical cases of blood stasis syndrome of coronary heart disease are selected, by using microRNA chip, cDNA microarray and other bioinformatics technologies to filter and verify related miRNA and its target gene of Coronary Heart disease. Meanwhile, intervene by Xuesaitong soft capsules to investigate related miRNA and its target gene of Coronary Heart disease.
Patients with NSTEMI and multivessel disease will be scheduled to undergo early invasive strategy (PCI within 72 hours) of de novo native coronary artery lesions were considered for recruitment into the study. Inclusion criteria are the following: diagnosis of NSTEMI according to current guidelines presenting with multivessel disease. We will exclude patients with cardiogenic shock at presentation (systolic blood pressure <90 mmHg despite drug therapy), left main coronary disease (>50% diameter stenosis), previous coronary artery bypass grafting (CABG) surgery, patients with Syntax Score >32 and candidated to by-pass surgery (10), severe valvular heart disease and unsuccessful procedures. Procedure success was defined as the achievement of an angiographic residual stenosis of less than 30% and a thrombolysis in myocardial infarction (TIMI) flow grade III after PCI. Patients randomized to One-Stage group were completely revascularizated in one time PCI, whereas patients randomized to Multi-Staged group were completely revascularizated in more time PCI, during the same hospitalization. Patients received a clopidogrel loading dose of 600 mg before the PCI (for loading dose administered more than 6 h prior to procedure). Post-procedural antiplatelet regimen consisted of aspirin at 100 mg/day indefinitely and clopidogrel 75 mg/day for at least one month.
Compare with regular regimen, the aim of this study is to testify whether having more statin during PCI will benefit in Chinese population, and to find out optimal dose of the drug for patient after PCI.
The International Registry of Acute Coronary Syndromes registry study in Transitional Countries (ISACS-TC) is both a retrospective and prospective study which was designed in order to obtain data of patients with acute coronary syndromes, and herewith control and optimize internationally guideline-recommended therapies in these countries Further study details as provided by the CINECA http://isacs-ct.cineca.org/
The purpose of this study is to determine whether Coronary Computed Tomographic Angiography (CCTA) will increase patient safety by decreasing the rate of missed ACS and adverse events in patients who receive standard care plus CCTA versus standard care alone. Additional goals of the study are to determine whether CCTA can safely reduce the duration of ED visits and the number and duration of hospital admissions.