View clinical trials related to Heart Diseases.
Filter by:Shunt quantification in atrial septal defect (ASD) is estimated by Echocardiography-Doppler, with the pulmonary-to-systemic blood flow ratio: Qp/Qs. Higher is the ratio, more important is the shunt, and the consequence on right ventricular function. A value higher than 1.5 is one of the criteria for percutaneous closure of Secundum ASD. Maatouk and al. have demonstrated that a shunt fraction (Qp/Qs) over 3 is a predictive factor of an incomplete reversibility of the right ventricular remodeling [1]. Even if the accuracy of Doppler echocardiography is admitted for Qp/Qs measurement, there is still some technical difficulties. Thus, the right cardiac catheterization for O2 consumption measurement by the direct Fick method is used. The major inconvenient is the potential risk of adverse effects. Non-invasive methods have been developed using physical properties (as the thoracic bioimpedance) or inert gas rebreathing technique. Thoracic Bioimpedance (TB) and inert gas rebreathing (IGR) techniques have been studies on healthy individual and different respiratory or cardiac diseases to evaluate the cardiac output (CO). TB and IGR measure the systemic and pulmonary blood flow respectively. Without shunt the pulmonary blood flow is equal to the systemic blood flow. Thus, Investigator suppose that combine the two techniques in disease with shunt, will allow a quantification of the shunt fraction Qp/Qs as accurate as with the gold standard technique (Fick method and Echocardiography Doppler). The purpose of the study is to evaluate the feasibility and the accuracy of the non-invasive measurement of the Qp/Qs ratio in secundum ASD using the IGR technique and the TB versus the two gold standard techniques: the Fick method and the Echocardiography-Doppler. The study hypothesizes that the values of Qp et Qs determined by IGR et TB respectively are in the same range of values that the one determined by gold standard techniques.
Our cluster randomized controlled trial of a novel clinical practice change will IMPACT the physical activity (PA) of children living with congenital heart defects (CHD) through our Innovative and pragmatic approach to systematically incorporate PA counselling within each clinic visit. Long-term, the focus is to prevent or treat the most common secondary morbidities of these patients (atherosclerosis, anxiety, depression) through enhanced PA. We have previously shown that home-based, PA interventions can increase daily PA and enhance PA motivation, motor skill and fitness when delivered via an intensive research intervention. Our objectives for this study are to Measure the feasibility and efficacy of PA counselling using clinical resources among paediatric CHD patients (daily PA, PA motivation, competence, quality of life) and on clinic systems (% patients counselled, clinic/kinesiology personnel support required, clinic visit time, # of PA questions). Our Patient-empowering, ready-to-use, self-explanatory "tool kit" of clinician PA resources and patient/family/clinician friendly searchable electronic PA database will be used to promote the Active lifestyles that are critically important to physical/mental health, peer socialization & childhood growth/development. 90% of children are not active enough for optimal health. We initially target children with CHD because they are less active than peers, and their most important secondary morbidities can be prevented or treated through PA. Our Collaborative approach with patients, their families and leaders in paediatric cardiac healthcare will optimize our "PA tool kit" and novel practice change for Translation to all paediatric CHD healthcare systems (primary, secondary, tertiary) through our pan-Canadian Cardiac Kids Quality of LIFFE Research and Knowledge Exchange Network, a collaborative of 10 patient/family support networks and 10 paediatric cardiac clinics in 6 provinces focused on Learning, Independence, Friends, Fitness & Emotional health (LIFFE).
To determine the efficacy of HS-25 (20mg) in reducing low density lipoprotein-cholesterol (LDL-C) levels after a 12-week period of treatment in combination with Atorvastatin in subjects with hypercholesterolemia and coronary heart diseases; To determine the safety of HS-25 (20mg) combination with Atorvastatin in subjects with hypercholesterolemia and coronary heart diseases
A study to evaluate the efficacy of MZ101 therapy in reducing liver stiffness.
This research study will test the effects of Q CAN PLUS powder on serum lipids, selected inflammatory and oxidative parameters and genome-wide methylation
The Just TRAC It! study (Transitioning Responsibly to Adult Care using smart phone technology) is a randomized controlled trial designed to evaluate the impact of using smart phone technology in combination with the nurse led transition intervention, versus the current standard of care (nurse led transition intervention including MyHealth Passport), on preparing adolescents with chronic cardiac disease to successfully transition from pediatric to adult cardiology care. "Just TRAC it!" is a mobile-health intervention designed to teach youth to manage their health using existing functions on their mobile devices. We propose to conduct a nurse-led intervention that encourages adolescents to use "Just TRAC it!" while addressing the healthcare transition needs of 16-18 year olds.
Coronary heart disease (CHD) poses a major health burden in the Gulf countries. It is the leading cause of mortality and morbidity in the world and poses an enormous societal burden in the Gulf countries. Early detection of disease is imperative to reduce the health care burden and financial costs associated with CHD. Knowledge of novel genetic and proteomic markers of CHD will provide more precise estimates of risk while defining the pathways important in individual patients, revealing new targets for intervention, and ultimately enabling an individualized approach to care. To translate recent advances in genomics and proteomics into clinical practice, these newly discovered biomarkers will need to be evaluated in patients of diverse ethnic groups with varying characteristics, environmental factors, and medication use. The investigators propose to establish a biorepository of plasma and Deoxyribonucleic acid (DNA) linked to demographic and clinical variables to facilitate biomarker studies of CHD risk, progression, and outcome. The overarching goal in developing the Qatar Cardiovascular Biorepository (QCBio) is to create a resource that fosters research aimed at identifying novel biochemical and genetic markers of CHD. A biorepository with linkage to clinical data will also provide an invaluable resource for cardiovascular research, including genomic and proteomic studies of CHD and development of biomarkers for early detection of disease and personalized drug therapy (pharmacogenetics and pharmacoproteomics).
I. Study design: open/ blinded randomized, controlled study. II. Study setting and location: The study will be conducted in Abul Reesh Paediatric Hospital Faculty of Medicine /Cairo University from 2016-2018. III. Study population: This controlled open/blinded labelled randomized study is designed to include 40 children of both sexes scheduled for open-heart surgery for total correction of congenital heart diseases. IV. Eligibility Criteria: Inclusion criteria; 1. Paediatric patients of age group ranging from 6 months to 12 years . 2. Patients with complex congenital heart disease undergoing open heart surgery for total correction of the cardiac anomaly using cardiopulmonary bypass. Exclusion criteria; - Age less than 6 months or more than12 years. - Significant ventricular dysfunction (Ejection fraction < 40%). - Patients with pre-existing CNS disorders e.g.: seizures. - Patients with abnormal liver functions. - Pre-operative creatinine level >1.2 mg /dl. - Patients with history of diabetes mellitus. - Patients receiving NSAID for any reason. Study Protocol; The patients will be pre-medicated by atropine 0.01mg/kg, ketamine 0.03mg/kg and midazolam 0.02mg/kg IM, 30 minutes before induction of anesthesia. Standard ASA monitors, including electrocardiogram (ECG), pulse oximetry (Spo2), and non-invasive blood pressure cuff, and INVOS somatic oximeter probes will be placed on the renal area (on the back to the right or to the left from T10 to l2) will be placed on the patients before induction of anesthesia. Anesthetic technique will be standardized for all the patients in the form of inhalational induction using sevoflurane 6% in a mixture of oxygen and air (1:1) to be followed by placement of peripheral intravenous cannula. Intubation will be facilitated by pancuronium 0.01 mg/kg IV and ventilation will be controlled using pressure mode aiming to maintain PCO2 between (30-35 mmHg). Anesthesia will be maintained by mixture of 2% sevoflurane in 1:1 oxygen: air till time of CPB. A standard CPB technique will be used in all patients. Before aortic cannulation, patients will receive IV heparin 400 U.kg-1 aiming to produce ACT value > 400 sec. A membrane oxygenator (minimax plus ;Medtronics Inc.,Anaheim,CA) will be used during CPB. Priming solution in the form of isotonic saline solution supplemented with heparin added to fresh whole blood in appropriate amounts to achieve a hematocrit 20-25% during CPB will be used. Furosemide in a dose of 1mg .kg-1.min-1 will be given to all patients. Venting of left heart will be performed with a left atrial vent inserted through a small incision at the inter-atrial septum . Anesthesia during CPB will be given by Sevoflurane administrated via a vaporizer inserted into the oxygenator gas supply with a constant gas flow 3 liter.min-1. A non-pulsatile roller pump (model10.10.00;Stocket instruments ;Munich, Germany) will be used and the pump flow will be adjusted at 2.4 to 2.6 L/min /m2 during the normothermic period targeting mean arterial blood pressure between 40 and 60 mmHg. If the MAP will fall below 40 mmHg despite full perfusion pressure, a bolus dose of 0.01-0.1 ng /Kg phenylephrine will be given. If MAP increased above 60 mmHg, a continuous infusion of nitroglycerin at a dose of 1-2 µg.kg.min-1will be given. After application of aortic cross clamp and administration of cold cardioplegia solution (Saint Thomas cardioplegic solution, 20ml/Kg to be followed by doses of 10ml/Kg every 20 min.), time will be allowed to develop a stable level of perfusion pressure and moderate hypothermia (28°C-32°C). These variables will be kept constant for at least 10 minutes after initiation of full flow CPB and initiation of the study sequence. Thereafter, patients will be randomely allocated to DEX group (Group D n=20) receiving dexmedetomidine in a dose of 3 mcg/kg over 10 minutes to be followed by an infusion of 1 mcg/kg/hr to be continued until the first 6 postoperative hours.
Serum uric acid level is a commonly measured biomarker. The association between serum uric acid level and the risk of developing cardiovascular diseases has been observed in some studies, while others showed controversial results. Estimation of this association may help to predict cardiovascular outcomes and may guide new treatment strategies. The hypothesis is that increased serum uric acid level is associated with a range of cardiovascular diseases.
Although coronary heart disease (CHD) treatment guidelines recognize obesity as a major modifiable risk factor,2 nearly half of all CHD patients are obese and the current standard of care fails to implement evidence-based obesity treatment for this high-risk population. Multiple lines of evidence suggest that weight loss improves outcomes in CHD patients. The primary goal of this study is to determine the feasibility of adding a 6-month behavioral weight loss intervention to exercise-based cardiac rehabilitation.