Active clinical trials for "Heart Failure"

Patient with coronary artery disease (CAD), heart failure and abnormal heart function undergoing major vascular surgery have a high associated high morbidity and mortality with myocardial infarction accounting for 33-50% of perioperative deaths. The prevalence of CAD in vascular surgery patients approaches 50%. Proper pre-procedure protocols to accurately assess patients and determine who may require further medical optimization prior to undergoing surgery help mitigate risk and improve outcomes. The investigators designed this study as a single center, retrospective cohort analysis to explore the association between ventricular (LV and RV function) and valvular (Aortic / Mitral / Tricuspid) function and expanded major adverse cardiac events (X-MACE).

The aim of this prospective study is to demonstrate if there is any difference in the treatment response to Sacubitril-Valsartan depending on the ventricular disfunction ethiology in patients with severe systolic disfunction heart failure.

This study is a population-based, patient-level analysis of heart failure in England over a 5-year period using a dataset created by linking HES and NICOR databases. Our analyses will look into the re-occurrence of hospitalisation after the initial diagnosis of heart failure, the influence of population factors on risk of re-hospitalisation, and the resultant cost implications in an NHS environment.

Heart failure (HF), a current worldwide pandemic with an unacceptable high level of morbidity and mortality, brings an enormous medical and societal burden. Chronic HF is characterized by progressive alteration of cardiac structure and function. But the molecular mechanism of these alterations is still not well-established and needs to be discussed further. HF is a highly heterogeneous disease that can be caused by a multiple of diseases. Dilated cardiomyopathy (DCM) and ischemic cardiomyopathy (ICM) are the main causes of this syndrome. Although HF is the common manifestation of DCM and ICM, the etiology and pathogenesis are different. Understanding the different pathophysiological mechanisms will contribute to the prevention and individualized therapy of heart failure. Therefore, this study aims to observation the different characteristics of the molecular biology and clinical courses in DCM and ICM patients.

Cardiogenic shock is an uncommun pathology with a high mortatily rate around 45%. Veno arterial extracorporeal membrane oxygenation (VA-ECMO) is a temporary extracorporeal assist device which restore an adequate blood flow when a circulatory failure occures. VA-ECMO main indication is refractory cardiogenic shock whatever the etiology. Current medical care of terminal cardiac failure includes use of long-term mechanical circulatory support devices (MCSD) such as Left Ventricular Assist Device (LVAD). LVAD therapy may lead to heart transplant (bridge to transplantation), to recovery (bridge to recovery) or to permanent implantation (destination therapy). Few patients with refractory cardiogenic shock treated with VA-ECMO may secondarily need a long term MCSD with LVAD. LVAD long-term heart assist showed interesting survival rate when implantation occured (71% after 2 years follow-up and 45% after 4 years follow-up) out of acute heart failure situation. There are only few datas concerning LVAD implantion during refractory cardiogenic shock, with a mortality between 20 to 50% in different studies. In this way, in comparaison of current few datas on the subject of LVAD implantation under VA-ECMO, the investigators (15 french-speacking centers) would retrospectively describe a large population.

The purpose of this study is to investigate the utility of Venus 1000 in predicting 30-day hospital readmissions for acute decompensated heart failure. Secondary outcomes will include correlation with NT-proBNP and weight both at admission and discharge from hospital

The study hypothesizes that an assumed cardiovascular performance reserve is physiologically detectable. High reserve at rest characterizes a healthy person while low reserve at rest characterizes low functional capacity e.g. heart failure. The lower the reserve the severer the morbidity. The reserve may be estimated through CVRI (cardiovascular reserve index) which is computed by an algorithm composed of physiological measurements taken during the patient visit. In this study the investigators evaluate CVRI capability in prediction of functional capacity in comparison with the clinical evaluation during the same visit.

Liver biopsy for the assessment of fibrosis has multiple limitations. Liver ShearWaveTM Elastography may provide a non-invasive, fast, and reproducible alternative for the quantitative assessment of liver fibrosis.

The purpose of this study is to determine whether ejection fraction and peak oxygen uptake have correlation on inspiratory muscle strength, chest wall volumes and quality of life in individuals with heart failure.

The main objectives of this study are i) to assess how heart failure was captured accross different linked electronic health record sources within the CALIBER program and the overlap between primary care, hospital admissions and/or the national mortality register, and ii) to assess risk factors, heart failure treatment and survival in patients, stratified by EHR source.