Active clinical trials for "Coronary Artery Disease"

Background: It has been demonstrated that pre-frailty has more adverse outcomes after cardiac surgery, however, data on prognosis and long-term evolution in pre-frailty patients after cardiac surgery without postoperative complications are still scarce. Design: To evaluate the impact of pre-frailty on functional survival in patients after cardiac surgery without complications.

The PRECISE PERCUTANEOUS CORONARY INTERVENTION (PCI) PLAN STUDY is an investigator-initiated, international and multicenter study of patients with an indication for PCI aiming at assessing the agreement and accuracy of the HeartFlow Planner with invasive fractional flow reserve (FFR) as a reference.

Coronary Microvascular Dysfunction has been consistently shown to play a considerable role in pathophysiology of Ischaemia with non-obstructed coronary arteries (INOCA). While the both diagnoses are individually related to remarkably worse outcome, there is no available method to simultaneously determine INOCA-CMD endotypes in vessel level, during the invasive diagnosis. The investigators hereby hypothesize that, combined intracoronary electrocardiogram (IC-ECG) (considering the high sensitivity and specificity of IC-ECG for studied vessel-territory) and intracoronary doppler can simultaneously and successfully identify vessel specific coronary microvascular dysfunction and resulting ischemia, which may potentially enable immediate diagnosis and endotyping of CMD-INOCA subgroups during the invasive assessment of first ANOCA episode, obviating the need for further ischemia-studies such es SPECT, which have considerably higher costs and lower sensitivity. Major coronary arteries of patients aged between 18 - 75 without obstructing coronary artery disease who have previously documented ischemia with non-obstructed coronary arteries (INOCA) via coronary angiogram and myocardial perfusion scan will be evaluated simultaneously with IC-ECG and intracoronary Doppler during rest and under adenosine induced hyperaemia. Performance of the combined system to identify Coronary Microvascular Dysfunction with structural and functional subgroups as defined by abnormal Coronary Flow Reserve (CFR) and Hyperemic Microvascular Resistance (HMR) and Ischemia in downstream territories of same vessel area (as defined by perfusion scan) is intended to be determined. The investigators also intend to interrogate the possible relationship between dynamic changes in IC-ECG parameters and invasively obtained intracoronary hemodynamic data.

Cardiovascular disease (CVD) is caused by atherosclerosis of the artery and is classified into coronary artery disease, cerebrovascular disease, and peripheral arterial disease, depending on the location of the artery and the target organs. However, since CVD share a similar pathophysiology and the probability of incidence of other CVD in CVD patients is very high. It is thought that CVD incidence and mortality can be reduced by predicting the degree of incidence of other CVD in CVD patients. The aim of this study is to investigate the incidence and mortality of other CVD diseases in CVD patients.

DEEPVESSEL FFR is a medical device that is designed to extract three- dimensional coronary tree structures and generate computed tomography-derived fraction flow reserve (FFR) values from coronary CT angiogram images. The primary objective of this multi-center clinical validation study is to validate the clinical performance of DEEPVESSEL FFR in identifying patients with myocardial ischemia due to significant obstructive coronary artery diseases.

This is a post-market, standard of care, real-world observational study to assess the clinical outcomes of the SYNERGY XLV (MEGATRON) Coronary Stent System for the treatment of subjects with atherosclerotic lesion(s) ≤ 28 mm in length (by visual estimate) in native coronary arteries ≥3.50 mm to ≤5.00 mm in diameter (by visual estimate). This Post Approval study is a cohort associated with the Evolve 4.5/5.0 (SYNERGY LV) Post Approval Study, which is registered under ClinicalTrials.gov ID: NCT03875651.

Depersonalized multi-centered registry initiated to analyze dynamics of non-infectious diseases after SARS-CoV-2 infection in population of Eurasian adult patients.

This study is set up to test the robustness of algorithms and models and to optimize them. Furthermore, data are used to investigate the influence of probe orientation on parameters of the common carotid artery.

The objective is to assess long-term clinical outcomes of patients in whom intervention of coronary lesions was deferred due to negative fractional flow reserve (FFR) and negative Instantaneous wave-free ratio (iFR) in a real-world patient population and to identify factors associated with deferred target lesion failure.

Physiology-based decision-making about the need for revascularisation in patients with stable coronary heart disease has consistently proven better clinical outcomes than a merely anatomical approach. However, against the current recommendations, revascularisation in most of patients with chronic coronary syndromes still relies on coronary angiography alone. The increase in costs and in procedural complexity of wire-based physiology may explain the latter. Therefore, a novel non-invasive functional quantitative flow ratio (QFR) index was created in order to solve it. A retrospective and multicentre study is performed to assess the 5-year prognosis of patients undergoing coronary angiography through a centralized QFR analysis. Consecutive participants with confirmed or suspected diagnosis of stable coronary disease who underwent a coronary angiography between 01/01/2015 and 12/31/2015 were included. Aims of the study: To evaluate the prognosis of stable coronary disease depending on the functional assessment of coronary artery disease. To determine the % of percutaneous coronary interventions that could be avoided if this study had been carried out through functional assessment of coronary artery disease based on 3-dimensional vessel reconstruction.