View clinical trials related to Heart Diseases.
Filter by:This study is being done to compare the blood flow measurements obtained with the SPECT and PET imaging scans. Measurements such as myocardial blood flow (MBF) and myocardial flow reserve (MFR) are analyzed on PET scans. These measurements give the doctors more precise information in diagnosing heart problems. SPECT scans, with new camera technology and computer software, now have the potential to also give this additional information. The study is investigating how well the blood flow measurements from SPECT compared to PET.
Due to successes in the last decades in pediatric heart surgery and cardiology, 90-95% of the children with congenital heart disease reach adult age.This results in an increasing number of adults or "grown-ups" with congenital heart disease (ACHD or GUCH patients) that require special health care organization and training programmes. Long term complications of these GUCH patients and optimum treatment strategies are still poorly known. The aim of this registry is to collect quantitative and qualitative data regarding GUCH patients treated in specialised centres in Switzerland.
Outcomes evaluation is a critical component in outpatient cardiac rehabilitation. The aim of this study is to examine factors who predict long-term effects of improved peak oxygen uptake one year after participating in cardiac rehabilitation. Secondary to evaluate the short and long-term outcome of a 12-week outpatient cardiac rehabilitation program.
In-stent restenosis is a major reason of coronary heart disease recurrence .Even in drug eluting stent(DES), Restenosis rate could be up to 10% in diabetes and complex lesions though it was about 3-5% in general. It is particularly important that in-stent restenosis after implantation was early diagnosed and detected. The evaluation of OCT imaging is more accurate for narrow area calculation, more clear for narrow organization structure and more specific for detecting tissue types.It is currently the best way for restenosis histologic diagnosis.But it has many weakness such as the higher cost,an invasive test, expensive instrument, relatively complicated to operate,and etc.In this study, OCT image was regard as the "gold standard" of stent restenosis. The improvement of spatial resolution of Gemstone CT can effectively improve the imaging quality and the measurement's accuracy of coronary artery stents.The diagnostic value of in-stent restenosis of Gemstone CT is higher than of the 320-detector row spiral CT. To a certain extent, the gemstone CT can replace OCT for examining the in-stent restenosis. This study will examine the degree of in-stent restenosis by the gemstone CT and the 320-detector row spiral CT and compare the two ways on the basis of the result of OCT.
The Registro Campania Salute Network (RCSN) is a prospective registry aimed at improving the management of essential hypertension by integrating the activity of general practitioners (GPs) with that of the hypertension specialist. It involves selected GPs homogeneously allocated in the regional area, and the Hypertension Clinic of the Federico II University in Naples, which served as co-ordinating centre. Through the RCSN system it is possible to store clinical data detected at each visit between the peripheral units and the co-ordinating centre and to support scientific analysis of the dataset.
Plasma donor-derived cell-free DNA (dd-cfDNA) is measured as a % of the total plasma cfDNA in association with the measurement of AlloMap, a non-invasive gene expression test to aid in heart transplant management.
The purpose of this study is to determine whether, in patients undergoing elective valvular heart surgery, revascularization of concomitant coronary artery disease (CAD) guided by FFR (Fractional flow reserve) would be superior to standard angiography-guided-revascularization approach on major efficacy and safety outcomes
Left heart disease is the main cause of pulmonary hypertension. With the advent of the aging society, chronic heart failure has become a global public health problem. Therefore the prevalence of pulmonary hypertension due to the left heart disease is increasing. However, there is no research on the prevalence of pulmonary hypertension due to the left heart disease in China. Therefore, the aim of the present study was to describe real-world outcome of Chinese patients with pulmonary hypertension due to the left heart disease and identify factors that may predict outcome. Our study will profile the demographics, clinical course, treatments, and outcomes of pulmonary hypertension due to the left heart disease in China.
Rheumatic fever (RF) is an autoimmune disease that is mediated by the cellular and humoral immune response that follows an untreated pharyngeal Streptococcus pyogenes infection. The most serious complication is rheumatic heart disease (RHD), one of the most common problems facing children and young adults worldwide, which leads to chronic valvular lesions. It is estimated that 60% of all acute rheumatic fever cases will develop RHD. The pathogenesis of RHD is complex with both environmental and genetic factors contributing to its etiology. The investigators know little about the genetic etiology, cellular events and modifiers of progression of RHD, and there exists a wide range of disease severity and progression to severe valve pathology. Thus, the investigators will study the genetics of RHD in Rwanda, a country with a very high incidence of RHD, using a combination of next-generation targeted exome capture, transcriptomics, and expressed quantitative trait loci (eQTL) analysis.
The study is a Prospective, Multi-center, Single Armed Registry to Evaluate The Safety and Efficacy of 'AVI' Stent for Treating Coronary Revascularization.