Active clinical trials for "Hypertrophy, Left Ventricular"

Hypothesis/Study question In infants born at less than 29 weeks of estimated gestational age, what are the effects of dexamethasone use on cardiac structure/performance and lung water content? Study objectives To measure effects before and after dexamethasone administration on cardiac structure/performance will be evaluated by using the M-mode technique (Devereux method (25-27) and lung water content will be specifically determined by the degree of water retention in premature lungs assessed by lung ultrasound at the pre specified time points. Methodology / Study design Single center, prospective observational cohort study planning to enroll eligible patients over a period of 12 months

The purpose of this study is to develop imaging protocols when using cardiovascular magnetic resonance (CMR) to assess cardiac functions, morphology and tissue characterization. The National Heart Research Institute Singapore (NHRIS) houses two dedicated CMR scanners to support the numerous investigator initiated projects in patients with various cardiac pathologists. By optimizing novel CMR sequences used in these studies, scanning time can be shortened for patients with underlying cardiac diseases.

Chronic Heart Failure Analysis and Registry in the Tohoku District 2 (CHART-2 Study) is a large, prospective, hospital-based cohort study to investigate the following: Characteristics of patients with chronic heart failure and prognostic risks of these patients. Characteristics of patients with high risk for heart failure and critical factors which predict the development of symptomatic heart failure in these patients. The incidence and prognostic impact of metabolic syndrome in patients with chronic heart failure. The association between metabolic syndrome and the development of symptomatic heart failure.

Aortic stenosis is the most common heart valve disease requiring intervention in high income countries. It is characterised by progressive valvular thickening, and restriction as well is hypertrophy and fibrosis of the left ventricle in response to pressure overload. The pathological processes in the left ventricle that ultimately result in heart failure and death are incompletely understood. Further elucidation of these processes and how they correlate with novel blood biomarkers may help us design new treatments and optimise the timing of surgical intervention. In brief, recruited patients with severe aortic stenosis and scheduled to undergo valve replacement surgery will be invited for some simple tests (blood sampling, ECG, echocardiogram). A septal myocardial biopsy will be taken at the time of surgery and the disease valve retained. These will be examined histologically and pathological changes compared with results obtained from ECG, echocardiogram and blood tests.

The purpose of this study is to determine the prevalence in Belgium of Fabry disease in patients with unexplained hypertrophic cardiomyopathy measured by echocardiography and to determine in Fabry patients which was the most frequently initial symptom. Actually the early diagnosis is important because a treatment exists that can prevent future complications.

The prevalence of Anderson - Fabry disease in patients with left ventricular hypertrophy is unclear. The investigators will examine urine - α - Galactosidase activity and globotriaosylceramide isoforms in these patients.

To review the accuracy of electrocardiography in screening for left ventricular hypertrophy in patients with hypertension.