View clinical trials related to Coronary Angiography.
Filter by:The "Registry of Malignant Arrhythmias and Sudden Cardiac Death - Influence of Diagnostics and Interventions (RACE-IT)" represents a mono-centric registry of patients being hospitalized suffering from malignant arrythmias (ventricular tachycardia or fibrillation) and sudden cardiac death (SCD). Detailed findings of patients' clinical outcome regarding mortality and co-morbidities related to the presence of invasive diagnostics or therapies including coronary angiography, percutaneous coronary intervention (PCI), electrophysiological testing (EP), catheter ablation and implanted cardiac devices (e.g. implantable cardioverter-defibrillators) will be documented. Patients will be included when being hospitalized from the year 2004 until today.
We plan to track the migratory behaviour of culture-expanded enothelial outgrowth cells in the context of vascular injury sustained during elective coronary angiography. We will use Flouro-deoxyglucose-labelling and PET-CT to track the endothelial cells.
The purpose of this study is to evaluate the predicting role of plasma GLP1 level on major adverse cardiovascular events (MACE) in patients with acute myocardial infarction who undergo percutaneous coronary intervention.
The aim of this study is to evaluate and describe the total coronary circulation time (TCCT) by using TIMI frame count method in patients performed coronary angiography. TCCT is described as an angiographic index which is the sum of the frame count of coronary artery and venous system. This study also evaluates the relationship between the diseases in arterial system such as coronary artery ectasia, coronary slow flow, coronary artery disease and coronary venous pathologies.
The purpose of this study is to confirm the utility for hypnosis in the coronary angiographic examination. The technique would be an alternative to prevent the consumption of anesthesic drugs.
The purpose of this study is to evaluate the amount of contrast media (CM) saved using the DyeVert system in diagnostic angiographic procedures compared to a control group.
The purpose of this study is to evaluate the usability characteristics of DyeVert™ during normal clinical use and to understand the amount of contrast media (CM) diverted from the subject and saved over a total angiographic procedure.
Current guidelines for the diagnosis and management of patients with stable coronary artery disease (CAD) strongly support the performance of non-invasive imaging techniques for the detection of myocardial ischemia prior to revascularization procedures. This recommendation originates from the strong evidence base showing the lack of prognostic benefit from percutaneous coronary interventions (PCI) over optimal medical therapy in patients without verification of myocardial ischemia. On the other hand, it could be demonstrated that patients with functionally significant coronary artery stenoses do benefit from revascularization. Cardiac magnetic resonance imaging (CMR) has emerged to be a diagnostic modality of choice for the detection of myocardial ischemia with high sensitivity and specificity. The investigators therefore designed this prospective and randomized trial to compare a CMR-driven vs. angiography-driven management of patients with stable CAD concerning major cardiac endpoints, futile angiographies and quality of life.
This is a prospective, multi-center, superiority study of parallel design. Patients are enrolled if they are older than 18 years old, are scheduled for 5 or 6 Fr diagnostic coronary angiography and the interventional cardiologist is willing to proceed with radial access. Patients are randomized before diagnostic catheterization to receive intravenously either 100IU/Kg or 50 IU/Kg of unfractionated heparin (UFH) in a 1:1 ratio. Patients are discharged usually within 4 to 6 hours after coronary angiography. Radial artery in each patient is evaluated either in-hospital or during a subsequent visit by one physician who is blinded to the actual antithrombotic treatment given. Radial artery is considered occluded if it exhibits ultrasonographically no antegrade flow signal both at baseline and after reevaluation on a second occasion, within 30 days after the index procedure. Initially patent arteries will not be reexamined and are thought to remain permanently patent. The investigators also monitor major bleeding (defined as ≥ 5g/dL decrease in hemoglobin or ≥15% decrease in hematocrit or any life-threatening bleeding (confirmed by MRI or computed tomography) and large local hematomas of the forearm (defined as those extending beyond the forearm).
Previous studies have shown that the transradial cardiac catheterization has decreased not only bleeding complications related to the access site and procedural discomfort but also morbidity and hospitalization as compared to transfemoral approach. At present, the right radial approach (RRA) is the first choice routinely for coronary angiography and interventions in daily clinical practice despite more marked subclavian artery tortuosity than left radial approach (LRA). Although LRA has been thought to be more direct access to the ascending aorta similar to transfemoral approach and may reduce fluoroscopy time and cerebrovascular complications compared with RRA, the application of LRA for coronary intervention is still low. Moreover, several studies have also obtained conflicting results showing no difference in procedural success rate compared LRA and RRA using Judkins catheters. To date, it remains unclear whether LRA is superior to RRA in term of safety and feasibility for coronary angiography and interventions in real world practice and few data of randomized control trial are available. The aim of this study was to randomly investigate and compare the safety and feasibility of LRA compared with RRA for coronary diagnostic angiography in Chinese subjects. The investigators will enroll consecutively for 2 years all patients undergoing coronary diagnostic procedures through trans radial approach. The primary outcome was total procedural duration. Secondary outcomes included fluoroscopy time, dose of radiation including cumulative air kerma and dose area product, contrast volume and the incidence of vascular complications.