View clinical trials related to Rheumatic Heart Disease.
Filter by:The purpose of this study is to investigate whether there are genetic differences between patients with rheumatic heart disease and members of the general population.
Background: - An acquired heart disease is one that a person gets after they are born. Two of these are rheumatic heart disease (RHD) and endomyocardial fibrosis (EMF). They are found more commonly in people who live in Africa than in other places in the world. Researchers want to learn more about these diseases. They especially want to know what role genes and other factors play in them. Objective: - To identify genetic risk factors for RHD and EMF in sub-Saharan Africa. Eligibility: - Children and adults with RHD or EMF. - Healthy volunteers over age 10. Design: - Participants will come from existing study groups in Uganda and Nigeria. - Participants may be required to provide a sample of their DNA. They will do this with either a blood or saliva sample or a swab of the mouth. - Collected samples will be labeled with a code and sent to a lab in the United States for analysis. Remaining portions of participants samples will be stored for an unlimited period of time. They may be used in future studies. - Some genetic and health information from participants might be placed into one or more scientific databases. - Participant names and identifying information will be kept private. But there is a small chance someone could trace them from their genetic information.
In view of the lack of large-scale clinical study and potent evidence-based medicine, the investigators designed a randomized, double-blind, placebo-controlled study to ascertain whether preoperative intravenous administration with glutamine can improve the postoperative cardiac function and prognosis of adult patients undergoing cardiac surgery. The investigators want to detect the levels of myocardial protein O-GlcNAc modification and HSP70 expression, changes in sensitive indicators of myocardial injury, systemic inflammatory reaction and oxidative stress levels, and to examine the correlation between these changes and Clinical manifestations. The ultimate goal of the study is to explore a new way for clinical myocardial protection.
We aim to investigate the efficacy of N-acetylcysteine (NAC) to attenuate acute renal dysfunction in patients with rheumatic valvular heart disease undergoing single valve replacement.
Acute rheumatic Fever (ARF) results from an autoimmune response due to molecular mimicry between the M-protein on the group A β-hemolytic streptococci (GABHS) cell membrane and cardiac myosin, and may lead through recurrent or sustained inflammation to Rheumatic Heart Disease (RHD). RHD remains a major contributor to morbidity and premature death in the working age population in Nepal. Secondary prevention with regular oral or intravenous administration of penicillin continued until early adulthood is recommended to prevent the progression of the development of endocarditis and subsequent valvular dysfunction. Screening for rheumatic heart disease using echocardiography has the potential to detect rheumatic valvular lesions at an earlier, clinically silent stage, as compared to clinical examination alone and might have a beneficial impact on long-term outcome of children with RHD. Schoolchildren aged 5-16 years from several public and private schools from rural and urban areas in Southeastern Nepal will be screened for RHD using portable echocardiography. Three main inter-related objectives will be pursued in three phases of the study: In a first phase using a cross sectional approach, the prevalence of clinical and subclinical RHD will be investigated among a representative sample of schoolchildren from public and private schools in urban and rural areas. In a second phase, using a cohort study approach among those children diagnosed at different stages of RHD, clinical outcomes with regular medical surveillance will be assessed (a), and clinical and social risk factors associated with prognosis of the disease after receiving medical care at various stages of disease at diagnosis will be determined (b). A third phase will integrate the prevalence rates from phase 1 and the clinical outcomes from phase 2 in a mathematical model to assess the impact of screening and RHD treatment on health resource utilization.
It is well know that statins have been used to low cholesterol to prevent and treat coronary artery disease for many years. It was also reported that statins could protect endothelial function and cardiac function during coronary artery bypass graft. However, some results were controversial. Also, there is no clinical data available on statin cardiac protection during surgery in China where rheumatic heart disease is prevalent. Thus, the investigators are trying to see whether statins can protect heart injury during cardiac surgery in Chinese. Part of patients will receive statin treatment and part of will not before surgery in the study. Both patients' heart function will be measured and compared after surgery to determine whether statins can protect heart injury during heart surgery.
The hemodynamic parameters of 31 pregnant women with rheumatic valve disease, undergoing restorative dentistry under local anesthesia with 2% solution of lidocaine, divided in two groups, with (Group LE) and without 1:100,000 epinephrine solution (Group LNE), were studied by 24-hour ambulatory electrocardiographic monitoring, intermittent blood pressure monitoring and continuous cardiotocography, during three standard time periods. A significant decrease in the values of maternal heart rate was seen during the procedure, in comparison with the other two time periods in the two groups, as well as, the occurrence of cardiac arrhythmia in 9 (29.1%) patients, being 7 (41.8%) of them in the group receiving epinephrine anesthesia. We conclude the use of 2% lidocaine in association with epinephrine proved safe during dental procedure in pregnant women with rheumatic valve disease.
A bacterium called Group A Steptoccoccus or "strep" is commonly found in the nose and throat of healthy adults and children and can cause a variety of illnesses. If this bacterium infects another part of the body one or more times, children may get Rheumatic heart disease (RHD). The purpose of this community based study is to see how many children between 5-15 years of age have RHD in Leon, Nicaragua. The study will also help to determine if the usual methods of detecting this disease are working. Researchers hope that this study will help to develop vaccines that may prevent "strep" infections to Nicaragua and other parts of the world. About 3,600 children will take part in the study. The children will participate for a minimum of 1 day and have a 6 month follow-up visit if they are identified as possible or probable RHD cases. Study procedures will include clinical exams and echocardiograms to determine the presence of RHD.
The current study was designed to determine whether the HLA-DRB1, DQA1, DQB1 alleles are associated with the risk and the pattern of valve damage of RHD.