Active clinical trials for "Heart Diseases"

Arrhythmias represent one of the main late complications in patients with congenital heart disease. Atrial arrhythmias are associated with a significant morbidity and are the first cause of urgent hospitalization, and sudden death from ventricular arrhythmias is a leading cause of death in this population. The exponential increase of the number of patients with congenital heart disease and the improvement of ablative technologies are associated with a significant increase of the number of catheter ablation procedures. Most of available studies are retrospective or include a limited number of patients. The aim of this study is to assess the efficacy of catheter ablation in patients with congenital heart disease through a national prospective registry. Secondary objectives are i) to identify factors associated with catheter ablation efficacy in different cardiac defects, ii) to describe complications associated with catheter ablation in this specific population, and iii) to assess the impact of catheter ablation on quality of life of patients with congenital heart disease.

rheumatic heart disease remains the majority valvular disease in low and middle income countries, which mostly affected mitral valve, surgical treatment is the most effective strategy to improve the outcomes of middle or late-stage RHD patient, however, whether mitral valve repair surgery is superior to replacement or other evolving interventional device remains controversial, this study aims to investigate the results of repair surgery compared with replacement or other treatment strategy from international multicenters.

The primary aim of this research is to explore the adherence and drop-out from early cardiac rehabilitation (CR), to inform interventions to support patient's adherence to CR and facilitate maintenance. The secondary aim is to understand which aspects of CR are essential for improving health-related quality of life in the short and long-term. This research will comprise four stages adopting a mixed-methods, quasi-experimental, repeated measures design.

A multicentre, post-marketing, observational trial in 450 patients, whose standard diagnostic workup for chronic coronary syndromes provided for Invasive Coronary Angiography (ICA). Medical records of a potential subject of the trial before their enrolment contain a good quality result of at least 128-slice CCTA performed up to 3 months before the elective ICA. CCTA should find at least one ≥50% stenosis in at least one big coronary artery of ≥ 2 mm diameter. At one hour before ICA in the latest the patient should have a resting Continuous Non-Invasive Blood Pressure (CNBP) taken with a certified device delivered by LifeFlow. The last criterion before including a patient in the final analysis is at least one significant (≥50%) stenosis in one or two coronary arteries of ≥ 2 mm diameter visually confirmed by ICA with a FFR measurement taken in these arteries. The data collection period will cover time from admission for the elective ICA to discharge from the hospital (evaluation of possible adverse events related to invasive procedures). After initial qualification of available data by the attending physician, selected patients will be asked for a consent to participation in the trial no later than upon admission for the elective ICA and before CNBP measurement.

This study aims to evaluate the effectiveness of 4D image acquisition and post-processing with Vios Works for the evaluation of 3D images acquired on GE Magnetic Resonance Imaging scanners. Specifically, the investigators propose to evaluate the following: Image acquisition time using traditional 2D and new 4D processing techniques; Image quality for 2D and 4D processing techniques subjectively Post-processing time for the two techniques. Correlation of overall Left ventricular and right ventricular volumes and functions and aortic and pulmonic flow studies using the two techniques. The study will monitor any changes in patient diagnoses or treatment resulting from any differences in interpretations between the two processes.

A large number of patients with symptomatic ischaemic heart disease undergo coronary artery bypass grafting (CABG) to alleviate their symptoms and improve prognosis. Given the progressive nature of coronary disease, bypass grafts can narrow or block over time, leading to chest pain and the need for further invasive coronary angiography. Invasive coronary procedures in patients with bypass grafts can be more complicated due to the variation in bypass graft ostia. This can lead to longer procedure times, with higher doses of contrast and radiation and more discomfort for the patient. The aim of this study is to see if the use of computed tomography cardiac angiography (CTCA) in patients with previous bypass grafts prior to invasive coronary angiography will help make their procedure safer and quicker.

The purpose of our multi-center cohort study is to build a large platform to follow up the peri-operative nutrition of children with congenital heart disease. And data will be collected pre and 1, 3, 6, 12 months post surgery including physical, laboratory, imaging examination and questionnaire. The primary outcome is nutrition status (measured as WAZ, WHZ and HAZ) and secondary outcomes were the biochemical index and quality of life.

The aim of this study is to investigate the possible efficacy of Carvedilol as gastroprotective agent against aspirin-induced upper gastro-intestinal complications in patients with ischemic heart disease (IHD).

In this trial we intend to evaluate the safety and effectiveness of the INSPIRIS valve prothesis in the pulmonary position in patients of five years or older, with congenital or acquired pulmonary valve disease, requiring replacement of their native or prosthetic pulmonary valve.

In one of the most severe congenital heart defects, hypoplastic left heart syndrome (HLHS), the left ventricle is underdeveloped and the prognosis is worse than in most other heart defects. The underdevelopment can occur gradually during fetal growth caused by a narrowing of the aortic valve. At some international centers, such fetuses are treated with a balloon dilation of the narrowed valve, but there is no scientifically sound evidence that this treatment is effective. The aim of this study is: 1/ to evaluate whether balloon dilation during the fetal period of a narrowed aortic valve can reduce the risk of the left ventricle becoming underdeveloped and the baby being born with a so-called univentricular heart (HLHS); 2/ to investigate whether such treatment improves the prognosis for this group of children with a very complex and severe heart defect and 3/ to also describe side effects and risks in fetuses and mothers of the fetal procedure.