View clinical trials related to Heart Diseases.
Filter by:This trial is an open-label, two-arm, cluster-randomized, controlled trial with cardiovascular surgical teams as the unit of randomization. Eligible teams with written consent are randomized to the intervention or control arm by random number generator. Computer-based, multicomponent intervention targeting on reduction of perioperative antimicrobial use will be delivered to teams in the intervention arm. Teams in the control arm will continue with usual clinical care.
Coronary artery disease (CAD) pathophysiology involves endothelium-dependent (e.g. nitric oxide, acetylcholine) and -independent (e.g. adenosine) vascular dilation impairment, which have been demonstrated at the level of small coronary arteries, medium sized peripheral arteries and subcutaneous microcirculation. Oxygen supplementation, which is frequently overused in clinical settings, seems harmful in acute coronary syndromes and increases microvascular resistance in myocardial and subcutaneous microcirculation through alteration of endothelium-dependent and -independent dilation by an oxidative mechanism. Whether endothelial dysfunction, that is well documented at the level of cardiac microcirculation in CAD patients, is also present at the level of subcutaneous microcirculation is unknown. Also, unknown is whether an acute oxidative stress can be used to probe myocardial microcirculatory dysfunction at the level of subcutaneous microcirculation, which is an easily accessible vascular bed for an in vivo assessment of endothelial-dependent and-independent function. Alterations in cutaneous vascular signalling are evident early in the disease processes. Thus, studying subcutaneous circulation in patients with cardiovascular risk factors could provide vascular information early in CAD processes. This study will test the following 4 hypotheses: 1. Endothelial dysfunction observed at the level of microvascular cardiac arteries is readily present at the level of subcutaneous microcirculation in a given CAD patient. 2. An acute oxidative stress such as hyperoxia can be used to test myocardial microcirculatory dysfunction at the level of the more easily accessible subcutaneous microcirculation. 3. Subcutaneous microcirculation of CAD patients has a lesser vasodilatory response to acetylcholine or sodium nipride than matched healthy subjects. In addition, CAD patients are more prone to dermal vasoconstriction in response to oxygen compared to healthy subjects. 4. Taken that oxygen is still too often given in excess in most clinical settings, the aim of this study is to rule out possible pitfalls in coronary pressure and resistance determinations in CAD patients receiving unnecessary oxygen supplementation.
This study examine the effect of Parasternal Intercostal Nerve Blocks with local anesthetic on pain control in patients undergoing non-emergent cardiac surgery in a prospective controlled trial. Half of participants will receive General Anesthesia combined to parasternal block while the other half receive only General Anesthesia.
Prevalence of rheumatic heart disease according to revised jones criteria (2015) in Assiut governate
This project implements an eHealth intervention targeted at vulnerable infants with cardiac disease and specifically study how this intervention impact their parents coping, stress levels and personal wellbeing. The intervention will be evaluated through a randomized controlled trial (RCT). The aim of this project is therefore to measure if the features of this mobile application are useful for parents' assessment of deterioration, decision-making and communication with health care providers.
Therapeutic catheterizations substituted many traditional surgical procedures with the advance of transcatheter techniques. Pediatric patients are more liable to fluid overload due to their smaller weights compared to adults and the risk increases in pediatrics with congenital heart diseases due to lower tolerability and reserve capacity and some of them may already have a degree of heart failure. Fluid overload increases the incidence of morbidity and mortality in such patients. The aim of our study is to observe the amount of fluids needed for flushing during pediatric cardiac catheterization (in ml/kg) and asses its effect on total lung water and PaO2/FiO2, aiming to develop a useful protocol for the amount of fluids used.
This study evaluates the effect of Indobufen and Aspirin on platelet aggregation and long term prognosis in patients with stable coronary heart disease.
The objective of this study is to establish AI algorithm based on the deep learning to strengthen the ability to classify the heart murmurs of healthy people and different major or other subdivided congenital heart diseases(CHDs) and to evaluate the effectiveness of artificial intelligence technology-assisted heart sound recognition system (referred to as: Heart sound AI recognition system) for multi-center CHD screening.
The research question was to investigate whether non-surgical periodontal therapy could reduce cardiovascular risk markers in Coronary heart disease (CHD) patients.
The presence of myocardial ischemia is the most important prognostic indicator in patients with coronary artery disease. Therefore, the purpose of percutaneous coronary intervention (PCI) is to relieve myocardial ischemia caused by the target stenosis. Fractional flow reserve (FFR) is an invasive physiologic index used to define functionally significant coronary stenosis, and its prognostic implications are supported by numerous studies. Contrary to the clear cutoff value and the benefit of FFR in pre-PCI evaluation, there have been various results regarding optimal cut-off values for post-PCI FFR. Nevertheless, the positive association between post-PCI FFR and the risk of future events has been reproduced by several studies. PCI with stent implantation is basically a local treatment and post-PCI FFR reflects both residual stenosis in the stented segment and remaining disease beyond the stented segment in the target vessel(s). Therefore, post-PCI FFR alone cannot fully discriminate the degree of contribution of each component. The relative increase of FFR with PCI is determined by the interaction of baseline severity of a target lesion, baseline disease burden of a target vessel, adequacy of PCI and residual disease burden in a target vessel. However, the most important problem in stratifying patients with better expected post-PCI physiologic results and following clinical outcome would be that there has been no clear method to identify these patients in pre-PCI phase. In this regard, we hypothesized that the amount of FFR step-up in pre-PCI pullback recording would determine the physiologic nature of target stenosis. For example, stenosis with sufficient step-up of FFR would deserve local treatment with PCI and these lesions would result in higher percent FFR increase, post-PCI FFR, and better clinical outcome than those without sufficient amount of FFR step-up. For this, we sought to develop automated algorithm to define physiologic major stenosis versus minor stenosis using pre-PCI pullback recording.