Active clinical trials for "Heart Diseases"

The overall goal of the study is to test the effectiveness and sustainability of an integrated care model for managing cardiovascular risk in individuals with family history of premature coronary heart disease (CHD). This care model involves: screening for cardiovascular risk factors, providing lifestyle interventions for prevention and management of cardiovascular risk factors, providing a framework for linkage to appropriate primary health care facility and active follow-up of intervention adherence. Initially, a formative qualitative research component will gather information on understanding of diseases, barriers to care, specific components of the intervention package (for example, context specific ways to enhance physical activity and to reduce prolonged sitting time, ways to improve diet etc.) and feedback on the intervention strategies (lifestyle education, care and linkage coordination). Then a randomized controlled trial involving ~700 families and 1400 participants will be used to determine whether an integrated care model is effective in reducing or halting the progression of CHD risk factors and risk factor clustering in families. The sustainability and scalability of this intervention will be assessed through economic and qualitative lenses to estimate value and acceptability. Scalability will be informed by cost-effectiveness and acceptability of the integrated cardiovascular risk reduction approach.

Purpose: To evaluate reactions to and opinions of a messaging campaign. Participants: Participants will be recruited through Prime Panels and will be US-based adults (18 years old and older) who consumed red meat in the past 30 days. Procedures (methods): After completing a screening question about meat consumption, participants will review a consent form. If they select to participate in the study, participants will be randomly assigned to view control messages, red meat-related environment messages, or red meat-related health messages. They will be asked a series of questions about these messages. Participants will also be asked about grocery shopping preferences and standard demographics questions.

The aim of the induction is to decrease stress response of endotracheal intubation. It is also important to keep hemodynamics stable during and after the induction period. Previous studies have shown that topical anesthesia can provide excellent superior supraglottic and subglottic local anesthetic effects and can significantly reduce the dosage of intravenous anesthetics. Therefore, it is significant to explore whether the combination of topical anesthesia and intravenous anesthetics could decrease the stress response of endotracheal intubation and keep hemodynamics stable during and after the induction period.

This is a single-center, prospective, controlled and diagnostic clinical trial which will enroll 30 patients scheduled for coronary angiography in China.Patients will receive contrast-enhanced cardiac magnetic resonance with polysaccharide superparamagnetic iron oxide nanoparticle before percutaneous coronary angiography.In order to evaluate the safety of polysaccharide superparamagnetic iron oxide nanoparticle, patients will detect iron levels in peripheral and tissue before and after the examination.The main indicators of the study are the degree of coronary artery stenosis and the stability of coronary atherosclerotic plaque assessed by contrast-enhanced cardiac magnetic resonance with polysaccharide superparamagnetic iron oxide nanoparticle.

In adolescents with congenital heart disease physical activity level is reduced which is why promotion to a more active lifestyle with an age-appropriate and modern intervention is needed. In healthy subjects digital health nudging was shown to increase physical activity. However, in adolescents with congenital heart disease such studies have not been conducted yet. In this RCT participants receive daily, short smartphone messages with the primary purpose to increase daily physical activity, which is monitored with a "Garmin vivofit jr." wearable.

Chronic kidney disease is an independent risk factor for cardiovascular disease associated with increased mortality rate during cardiac surgery in proportion to the kidney function. Chronic kidney disease is defined by decreased glomerular filtration rate (GFR) as classified by Kidney Disease: Improving Global Outcome (KDIGO). Deterioration of kidney function has a complex and multifactorial pathophysiologic derangement. In order to counter kidney injury associated with cardiac surgery, several pharmacologic and non-pharmacologic interventions have been studied to prevent perioperative deterioration of kidney function. Diuretics as pharmacologic measure are often used post-cardiac surgery to treat fluid overload and managing patient with acute kidney injury by preventing anuria. Loop diuretics (furosemide) may improve renal blood flow, decrease reabsorption in renal tubules, decrease oxygen demand and energy consumption (blocking potassium/sodium/2cloride co-transport in loop of Henle), and prevent hypoxic injury of renal medulla. Low dose continuous furosemide hypothetically has a protective effect on cardiac surgery patients with kidney dysfunction, measured improved glomerular filtration rate, decreased indication for therapeutic furosemide infusion, and decreased need of renal replacement therapy. On the other hand, administration of furosemide is rather harmful in severe kidney dysfunction. Therefore, the objective of this study is to determine the protective effect of low-dose continuous furosemide perioperative in cardiac surgery patients with mild to moderate kidney dysfunction.

The goal of this clinical trial is to analyze implications of two alternative nudge-interventions to increase adherence to palivizumab prophylaxis in children with congenital heart disease. The main questions investigators aim to answer are: Are well-established cognitive biases effective in increasing patient families' adherence to the palivizumab prophylaxis program? What are the factors that affect families' adherence to the prophylaxis program and whether and how the effects of interventions depend on these factors? To study these questions investigators planned to utilize four well-established cognitive biases in designing two alternative nudge-interventions and investigators measured the effectiveness of each nudge-intervention against a control group. Patients were randomly allocated to one control and two treatment groups. In the control group, investigators informed participants about the prophylaxis program and provided a schedule. Patients in the first treatment group were additionally called two days before appointments (status quo bias), and were asked to plan the appointment day (implementation intention). Patients in the second treatment group received biweekly messages informing them about the benefits of the program as well as the current adherence rate (availability bias and social norm).

Accessing the arteries of the heart through the blood vessels of the wrist is becoming increasingly popular. By obtaining access via the artery in the arm as opposed to the groin, there is less risk of complications and improved patient satisfaction. However, using the wrist can cause blockage of the artery after the procedure. If there is too little blood flow from a second artery that supplies the hand, this could result in significant injury. Therefore, it is important to test these blood vessels in the wrist prior to having this procedure. The best way to evaluate these arteries involves the use of ultrasounds but this takes a long time and is expensive. Therefore, the artery is usually evaluated with a clinical test known as the modified Allen's test, which relies on the doctor watching the flushing of the hand during compression of the artery. Currently smart phones with cameras are able to assess blood flow by passing light through the skin and watching differences in brightness. This may be a better way to assess the arteries in the hand as it is less subjective than simply watching the flushing of the hand. This study aims to assess the ability of an iPhone application in determining whether there is sufficient blood flow through the arteries of the wrist and comparing it to the clinical test commonly used.

The purpose of the study is to generate early US feasibility data of the CardiAQ™ Transcatheter Mitral Valve Implant System. The study will enroll patients with moderate to severe mitral valve regurgitation who are considered high risk for mortality and morbidity from conventional open-heart surgery.

This study evaluates the feasibility and acceptability of using mobile applications to improve medication adherence. Participants in the experimental group will receive educational materials and daily reminders through mobile applications. While, participants in the control group will receive only educational materials. After the intervention, interviews will be conducted among participants through phone calls.