View clinical trials related to Coronary Vasospasm.
Filter by:The MICRO-SNAPE registry will collect data from patients undergoing investigation of microvascular dysfunction and coronary spasm in Europe and North America.
The goal of this prospective, multicenter registy is to describe the 'real-world' use of coronary function tests, which may consist of bolus thermodilution measurements of coronary microvascular function and/or invasive vasoreactivity tests with acetylcholine, in the current Belgian routine practice. The main questions it aims to answer are: - how frequent are coronary function tests performed - what is the indication for coronary function tests - what is the frequency of coronary microvascular dysfunction - what is the frequency of coronary artery vasospasm From each participant, data will be collected from their medical files concerning cardiovascular risk factors, relevant past medical history, non-invasive tests, procedural data, and follow-up data from routine in-patient visits. Their are no specific study visits. Optionally, patients will be asked to fill in questionnaires about anginal symptoms and quality of life.
AID-ANGIO is an observational, prospective, single arm, longitudinal study. Its objective is to investigate the diagnostic yield of the systematic use of a diagnostic strategy hierarchically addressing both obstructive and non-obstructive causes of myocardial ischaemia in an all-comers population of patients with chronic coronary syndromes (CCS) undergoing invasive coronary angiography (ICA). Angiographically severe-grade stenosis (≥70%) can be safely considered flow-limiting without further physiological assessment. Conversely, by means of a pressure guidewire, intermediate-grade stenosis would be evaluated with fractional flow reserve (FFR) and/or non-hyperaemic pressure ratios (NHPR) in order to determine if they are physiologically relevant. Those patients with non-obstructive CAD or normal epicardial coronary arteries would undergo functional coronary tests to investigate the presence of microcirculatory and vasomotor coronary disorders, which would account for non-obstructive causes of ischaemia. The main hypothesis of AID-ANGIO study states that, in patients with CCS referred to ICA, the application of a structured strategy -including ICA, physiological assessment of intermediate-grade stenosis and functional coronary tests- leads to a high diagnostic accuracy.
EXAMINE-CAD-DZHK22 is a prospective, randomized, double-blind, placebo-controlled, crossover trial investigating the efficacy of beta blocker (bisoprolol) and calcium channel blocker (diltiazem) therapy in symptomatic patients with non-obstructed coronary arteries according to coronary physiological testing results.
The overall objective of this multi-center registry is to identify specific phenotypes of INOCA with both an anatomic evaluation (coronary angiography and intravascular imaging) and physiologic assessment with the Abbott Coroventis Coroflow Cardiovascular System, and to determine long-term outcomes.
To compare clinical outcomes of myocardial infarction with non-obstructive coronary arteries (MINOCA) according to the coronary microvascular dysfunction (CMD), evaluated by optical coherence tomography (OCT), invasive and non-invasive coronary physiologic assessment.
Rationale: coronary microvascular disease is a relatively 'new' entity within the field of cardiology. The investigators are able to investigate the microcirculation by measurements performed in the catheterization laboratory. But even though measurements are performed on a daily basis, a lot of questions regarding microvascular disease remain. The rationale of this registry is to get an overview of patients and measurement values in daily routine practice. Objective and main endpoint: No previous registries have been set-up where coronary blood flow and resistance was systematically stored. Therefore the analyses will be mainly descriptive. The objective is to acquire a better insight in the indications and use of this technique in everyday practice , its consequences for clinical decision making, and to enable interventionalists to exchange mutual knowledge about this specific methodology and about the coronary microcirculation in general. Study design: prospective registry Study population: All patients who underwent coronary angiography with or without coronary intervention for any reason and if an indication for the foreseen intracoronary physiologic measurements is present according to the discretion of the operator. Intervention (if applicable): none, only usage of measurement data. The only 'intervention' for all patients is a questionnaire.
Hypertension is a multifactorial clinical condition, it may not cause symptoms and its diagnosis is often delayed. And even when it is diagnosed early, some patients cannot manage an adequate blood pressure. There are several hypotheses for the non-control of blood pressure, among them the difficulty of lifestyle change, irregular treatment with antihypertensive drugs, non-individualized treatment. Studies haven shown that tools such as multiprofessional team and hypertension leagues are important strategies to obtain a better outcome in the hypertension treatment, but new approaches are still necessary. Health Coaching is an individualized form of follow-up, promoting better adherence, better nutrition, smoking cessation, regular physical exercise and regular use of drugs, thus reducing cardiovascular mortality.
The ReDy™ System (Renal Dynamics) is a renal denervation device incorporating a variety of ablation features and technical improvements over previously designed systems into a single product. It is intended to treat uncontrolled (drug-resistant) hypertension by RF ablation of the sympathetic nerve network surrounding the renal arteries. This study will be carried out to validate the safety and the efficacy of the ReDy™ Renal Denervation device and to demonstrate that it performs according to its intended use, i.e. the treatment of patients with uncontrolled hypertension.
The purpose of this study is to use ambulatory blood pressure monitors to investigate whether enalapril is superior to lisinopril in managing nocturnal hypertension in patients with resistant hypertension currently treated with daytime angiotensin converting enzyme inhibitors.