View clinical trials related to Heart Diseases.
Filter by:Randomized controlled trial comparing femoral vs internal jugular insertion site of central venous catheters (CVC) in newborns and infants undergoing cardiac surgery. The experimental hypothesis is that the jugular insertion site is superior to the femoral in terms of catheter colonization.
Background: Volume replacement strategies and type of fluid used in patients undergoing cardiac surgery have changed during the last years. Currently used crystalloid solutes have a variable composition and a major impact on organ function and outcome. Additionally critically ill patients are prone to fluid overload, which is despite common perception, not a benign occurrence as it is associated with prolonged ICU- and hospital length of stay and increased mortality rates. Fluid resuscitation using bolus or continuous infusion of hypertonic saline was used for more than thirty years. Only a few studies have been conducted so far, but they showed that infusion of hypertonic saline results in less volume administered, increased renal function less weight gain in critically ill patients when compared to other crystalloids. Aim: This preliminary randomized controlled double-blind study aims to identify whether fluid resuscitation using hypertonic saline (HS) when used in addition to lactated Ringers solution results in less total fluid amount administered in patients following cardiac surgery. Additionally we want to evaluate whether the use of hypertonic saline results less need for pharmacological cardiocirculatory support, increased renal function, less postoperative volume overload shortened post-cardiac bypass immune suppression and increased postoperative outcomes. Study intervention: At admission to the ICU patients will receive 5ml/kg body weight of 7.3% NaCl or 0.9% NaCl by infusion pump over 60 minutes. If necessary, fluid resuscitation will thereafter be performed with Ringer`s lactate to normalize peripheral perfusion and to allow weaning of vasopressors.
To investigate histological structure and molecular changes involved on the onset of AVD after left ventricular assist device (LVAD) implantation and to compare them with those of patients operated on for severe aortic regurgitation. Methods: Bridge-to-transplant patients with AVD post-LVAD implantation are included. Patients operated on for severe aortic regurgitation are included as control. Clinical and TTE data are compiled. Samples of aortic valve are collected at the time of the intervention. RNA-sequencing analysis is performed in LVAD patients and variations of gene expression are validated by real time qPCR in both. Blood sampling are performed pre-operatively and at one-month follow up to assess the plasma level of previously identified gene modulators. In-vitro studies exposing VICs and VECs to several mechanical stimuli are performed for validation. Conclusion(s) Taking together, the in-vivo and in-vitro models would provide important information for the understanding of valve remodeling and disease. ECM gene modulators could represent pertinent molecular targets to stop the progression of AVD
Many conditions affecting health are caused by a combination of environment, behaviors, and genes. While individuals can alter some factors in their lives to reduce the chances of developing different diseases (e.g., not smoking cigarettes), the contribution from genetic risk encoded by DNA remains with people throughout their lives. Scientists are still trying to determine the entirety of genetic factors that influence disease, but for some conditions it has been shown that the factors identified thus far can begin to identify people at high to low genetic risk. Looking across the genome, scientists can calculate a cumulative genetic risk score - which can be used to rank genetic risk compared to other worldwide populations. The goal of this study is to determine how genetic risk influences health decisions and other things that can be controlled in life. The first genetic risk score is calculated for coronary heart disease (CAD). CAD ultimately leads to heart attacks, heart failure and sometimes sudden cardiac death and is the main reason heart disease remains as the number one cause of death worldwide. Other researchers have shown that this genetic risk score can be used to identify people with low, intermediate, and high risk for coronary heart disease. It has also been shown that the use of statins (cholesterol lowering drugs) provides greater benefit and protection against heart attack for people with high genetic risk for coronary artery disease. Leveraging the Apple ResearchKit and the ResearchKit linked 23andMe API, customers of 23andMe are able to provide researchers access to their genomic data. Participants will use the ResearchKit app to provide consent, view study information, answer surveys, and contact the study team. Participants will be asked to complete 3 surveys. One before viewing genetic risk scores, one immediately after viewing scores, and one 6 months after viewing scores.
Congenital malformations correspond to defects in organ morphogenesis identifiable at birth or intrauterine life, affecting 2-3% of births. Inside of these malformations, Congenital Heart Disease corresponds, in particular, to structural defects of the heart or major blood vessels thereof may or may not be associated with other types of syndromes.The resolution is usually surgical. Also, these patients present a decrease in physical fitness, psychological imbalance, lower quality of life and risk significant morbidity and mortality from respiratory infections among other problems. This can have severe consequences for health in the medium and long term. The habits acquired during childhood and adolescence are determinant for the adult life, being relevant levels of activity and physical condition, especially in children with pathologies. In this way, it is vital to know from childhood parameters that indicate the baseline state of these patients according to the levels of physical activity, exercise capacity, nutritional status and quality of life. These will be key indicators to take into account in the future, to adapt rehabilitation plans that will reduce the effects of their condition. The objective of this protocol is To characterize the levels of Activity, and Physical Capacity of children with congenital heart disease regularly treated at the Cardiovascular Center of Dr. Luis Hospital Calvo Mackenna, compared to healthy children matched by age and sex.
Differentiating hypertrophic cardiomyopathy (HCM) from hypertensive heart disease (HHD) unavoidably encounters diagnostic challenges especially in patient of suspected HCM with history of hypertension. Diverse and overlapping forms of HCM can often lead to ambiguity when diagnosis is based on a single genetic or morphological index. The investigators have deduced a integrated formula based on cardiac magnetic resonance (CMR) imaging and established a differentiating flow-chart between HCM and HHD, the investigators aim to identify their method in the current multi-center trial.
This study is designed to directly compare Standard Care and CT fractional flow reserve (CTFFR) for diagnosis of chest pain patients with definite coronary artery disease (CAD) on heart computed tomography (CT) scans.
This study will evaluate if the introduction of a supported exercise programme can improve physical and psychological well-being for adults with congenital heart disease.
To evaluate the clinical safety and efficacy of a new Medtronic Coronary Drug-Coated Balloon Catheter in the treatment of de novo lesions, small vessel disease or In-Stent Restenosis with coronary lesions previously treated with drug-eluting or bare metal stents in native coronary arteries.
This study aims to examine the psychological well-being and QoL of Hong Kong Chinese adolescents with CHD by - comparing the self-esteem level, depressive symptoms, and quality of life of adolescents suffering from CHD with healthy norms and cancer survivors. - identifying possible factors affecting the quality of life of adolescents suffering from CHD.