Active clinical trials for "Angina, Unstable"

The purpose of the study is to identify proteins, metabolites and signal pathways related directly to symptomatic atherosclerosis and to disease progression. In the study, we use residual material from angioplasty catheter balloons and from vascular surgery plus blood samples. It is the hypothesis that material left on the catheter balloons used for angioplasty can be used for proteomics and metabolomics evaluation that will identify inflammation-associated proteins and signaling pathways directly in the diseased vessel. The tissue samples will be collected after the procedure and blood samples will be collected at the procedure plus after 6-12 months. The tissue and blood samples will be analyzed using mass spectrometry methods and a standard panel of biomarkers will also be analyzed using standardized methods. The analyses will include study of inflammation-associated peptides observed in autoinflammation as well as thrombogenic signaling pathways and local expression of biomarkers. The analyses of proteins, metabolites and/or biomarkers will be compared between cases (stable angina, unstable angina/non-STEMI, STEMI and vascular surgery) and controls (procedures not related to coronary artery diseases) to identify molecular processes related directly to symptomatic atherosclerosis and will be associated with disease progression using data from medical journals and National Health registries. The study will recruit 225 patients from Rigshospitalet University Hospital, Copenhagen, and Herlev-Gentofte Hospital.

The purpose of the SIROOP Registry is to retrospectively and prospectively collect baseline, clinical and procedural characteristics of patients who have undergone PCI and are treated with either currently available sirolimus or paclitaxel coated DCBs (see Table 1), irrespective of clinical presentation as well as to prospectively collect data about their clinical outcomes. Outcomes will be compared in different clinical subgroups. The impact of current DCBs in different clinical settings and coronary artery lesions on cardiovascular outcomes will be assessed.

Preclinical studies have demonstrated that high mechanical index (MI) impulses from a diagnostic ultrasound (DUS) transducer during an intravenous microbubble infusion (sonothrombolysis) can restore epicardial and microvascular flow in acute ST-segment elevation myocardial infarction (STEMI). The investigators propose to demonstrate the clinical effectiveness of sonothrombolysis in multiple centers and in a wide scenario of acute coronary syndromes.

The PROTEUS study is a randomized, cross-over, open-label, pharmacodynamic trial designed to compare the antiplatelet effect of reduced maintenance doses of prasugrel and ticagrelor in stable patients who recently had non-ST-elevation acute coronary syndrome (non-ST-elevation myocardial infarction or unstable angina).

ISACS ARCHIVES network is part of ISACS TC (NCT01218776) health care program. It is a collaborative network of research centers that support the rapid development of new scientific information and analytic tools. The ISACS ARCHIVES network assists health care providers, scientists, and policymakers seeking unbiased information about the outcomes, clinical effectiveness, safety, and appropriateness of health care items and services, particularly prescription medications and medical devices in acute coronary syndromes (ACS).

Bifurcation lesions (BL) on coronary arteries account for 15-20 % of all performed percutaneous coronary interventions (PCI). Preferred approach for treatment of most bifurcation lesions is the stepwise provisional stent strategy with main branch-only stenting followed by provisional balloon angioplasty with or without stenting of the side branch (SB). Stenting of the side branch is indicated when the angiographic result in SB is clearly suboptimal and when flow remains reduced. Upfront use of two stent techniques may be indicated in very complex lesions with large calcified side branches ( most likely to supply at least 10% of fractional myocardial mass), with a long ostial side branch lesion (>5mm) or anticipated difficulty in accessing an important side branch after main branch stenting, and true distal LM bifurcations. From a technical point of view, we propose a "Provisional DCB approach" that differs from the standard provisional approach with obligatory SB predilation and good lesion preparation. In case of an adequate result of predilation, the procedure on the SB ends with the DCB deployment. This is followed by main branch stenting with DES, finished with POT. Final 'kissing' balloon dilation is generally not recommended because there is no advantage from final kissing with the one-stent technique. With this approach, there is no need for re-wiring, re-ballooning, side branching and wire jailing and final kissing. This technique is close to a contemporary approach to bifurcation lesions based on the fundamental philosophy of the European Bifurcation Club (EBC): keep it simple, systematic, and safe, with a limited number of stents that should be well apposed and expanded with limited overlap, with respect of the original bifurcation anatomy.

The goal of the study is to assess the prevalence of contrast-associated acute kidney injury in patients with stable coronary artery disease, ST-elevation myocardial infarction and unstable angina/NSTEMI, assess the risk factors of contrast-induced acute kidney injury development and the influence of contrast-induced kidney injury on 1-year prognosis.

Introduction: Today it is necessary to emphasize that coronary heart disease is often associated with anxiety disorders. Research over the years has shown several and sometimes surprising links between coronary heart disease and mental illness, and has even suggested that both of these phenomena may actually cause each other. However, the exact nature of these links has not yet been clearly established. Methods: The study included 202 patients with coronary artery disease, of whom 42 patients were with stable angina pectoris, they participated as a control group, and 160 patients with unstable angina pectoris, who made up the main group. Among them there are 102 women and 100 men between the ages of 30 and 88. The average age was 63.75 ± 11.37 years. All study participants had blood in the morning on fasting after 8-12 hours of fasting from the cubital vein. Determination of the level of cytokines TNF-α, IL-1β, IL-4 and IL-10 in blood serum by enzyme-linked immunosorbent assay (ELISA). All participants in the study had blood drawn in the morning on fasting after 8-12 hours of fasting from the cubital vein. The level of uric acid was determined on the CYAN Start apparatus using a unified method. When examining patients with unstable angina pectoris were used: hospital anxiety and depression scale [Kozlova S.N. 2013]. And also the Spielberger-Khanin scale [Psychiatry - Hoffman A.G. 2010], developed by Spielberger Ch.D. and adapted by Yu.L. Khanin. to assess cognitive functions [Psychiatry - Gofman A.G. 2010].

The purpose of the COMPLEX Registry is to prospectively and retrospectively collect baseline, clinical and procedural data of patients who have undergone PCI or CABG for complex and/ or calcified chronic CAD, irrespective of clinical presentation as well as to prospectively collect data about their clinical outcomes. The outcomes will be compared in different clinical subgroups (e.g. PCI vs. CABG). The impact of current PCI techniques/ devices, but also CABG strategies in different clinical settings and coronary artery lesions on cardiovascular outcomes will be assessed.

The triage of patients with suspected acute coronary syndrome in the emergency room is a time-consuming diagnostic challenge. Therefore high sensitive early markers for myocardial damage are needed for more rapidly rule out of acute myocardial infarction (AMI) - especially for the first 3 to 4 hours after onset of chest pain in AMI ("troponin-blind" period). Therefore we test the hypothesis that the use meticulous patient history and novel cardiac markers can provide a faster detection or exclusion of AMI in patients presenting with acute chest pain to the emergency department. The prospective cohort study is designed to enrol patients presenting with acute chest pain at rest within the last 12 hours to the emergency department. Several blood samples for detection of the new markers will be drawn and compared with the gold standard for the diagnosis of AMI (high-sensitivity cardiac troponin T). All patients will be contacted by telephone at 3, 12, 24 and 60 months to determine functional status, major adverse cardiac events (death, myocardial infarction, coronary artery bypass grafting, percutaneous coronary intervention), and the results of cardiac examination (stress test, coronary angiography) if performed.