Active clinical trials for "Cardiomyopathies"

This prospective randomized study evaluates the nephroprotective effects of exogenous nitric oxide delivered to the extracorporeal circulation circuit during cardiac surgery with cardiopulmonary bypass.

The investigators aimed to use CMR technique in helping diagnose the etiology of unknown cardiomyopathy. Try to make a risk stratification of susceptible heart failure based on the extent of myocardial impairment.

The aim of the induction is to decrease stress response of endotracheal intubation. It is also important to keep hemodynamics stable during and after the induction period. Previous studies have shown that topical anesthesia can provide excellent superior supraglottic and subglottic local anesthetic effects and can significantly reduce the dosage of intravenous anesthetics. Therefore, it is significant to explore whether the combination of topical anesthesia and intravenous anesthetics could decrease the stress response of endotracheal intubation and keep hemodynamics stable during and after the induction period.

Patients with dilated cardiomyopathy who present for indwelling right heart catheterization will be enrolled and randomized to either control or triheptanoin oil for five days. Hemodynamics will be assess serially.

Medical imaging is one of the fastest growing sectors in health care and increases in utilization underscore the need to ensure imaging technology is developed and used effectively. Evaluation of the clinical and economic impact of such imaging lags behind the technology development. Heart failure (HF) represents the final common pathway for most forms of heart disease and morbidity and mortality remain high. There is a need to identify imaging approaches that have a positive impact on therapy decisions, patient outcomes and costs. As well as standard methods to evaluate new and emerging techniques to better test their potential in a clinical management setting. PRIMARY OBJECTIVES: to compare the effect of HF imaging strategies on the composite clinical endpoint of cardiac death, MI, resuscitated cardiac arrest and cardiac re-hospitalization (WHF, ACS, arrhythmia). Patients with an ischemic heart disease (IHD) etiology will follow HF imaging strategy algorithms according to the question(s) asked by the physicians (is there ischemia and/or viability), in agreement with their local practices for standard and alternative imaging. SECONDARY OBJECTIVES: To evaluate the effect of imaging modalities within and between the imaging subgroups (advanced (CMR and PET), PET, MRI and standard (SPECT)) on the primary and secondary outcomes in patients being evaluated either for viability and/or ischemia. To evaluate the impact of adherence to recommendations between modalities on outcomes in patients being evaluated for either viability or ischemia. To compare the effect of HF imaging strategies on: The incidence of revascularization procedures (PCI, CABG, none) and the interaction of the imaging strategy and types of revascularization on outcomes LV remodeling: LV volumes, LVEF, HF symptoms, NYHA class QOL (MLHFQ, the EQ5D) The evolution of serum prognostic markers in HF (e.g. BNP, RDW, hs-cTnT, hs-CRP, ST2) Health economics: Costs estimated through regression analysis and cost effectiveness assessed through decision modeling. The safety of imaging tests measured by cumulative radiation, adverse reactions to imaging contrast agents and stress testing agents will also be determined. The evolution of renal function (eGFR) and LV remodeling-associated biomarkers (e.g. PIIINP, OPN). Event rates of each component of the composite endpoint as well as the combined endpoint of CV death and HF hospitalization All-cause mortality

Objective: The objective of this pilot study is to characterize the cardiac uptake patterns of I-123 mIBG in stress-induced (Takotsubo's) cardiomyopathy. Hypothesis: Perturbations in sympathetic innervation are the underlying pathogenesis of stress induced cardiomyopathy and will result in abnormalities in I-123 mIBG cardiac imaging. Thus, planar and SPECT I-123 MIBG imaging will provide insight into the pathogenesis of stress-induced cardiomyopathy, and may lead to the development of more specific diagnostic criteria. Study design: This proposal is for a prospective pilot study to characterize perturbations in cardiac sympathetic innervation in patients with stress induced cardiomyopathy by performing planar and SPECT I-123 MIBG imaging during the acute presentation and after recovery of LV function.

The primary purpose of this study is to compare the number of participants with reversible pulmonary hypertension (vasoreactivity) due to nitric oxide for inhalation and oxygen as compared to 100% oxygen.

Heart failure is a progressive disease that decreases the pumping action of the heart. This may cause a backup of fluid in the heart and may result in heart beat changes. Using very low electrical pulses that travel across the inside of the chest cavity, thoracic fluid status monitoring (OptiVol™) can measure the level of resistance to the electrical pulses, which indicates the level of fluid in the chest. The purpose of this study is to collect information related to fluid build up in the chest of subjects with heart failure.

Anthracyclines are one of the most well-known and effective drugs used to treat malignancies.The most important limiting factor in the use of this drug is its cardiac toxicity which includes cardiomyopathy and congestive heart failure. Bisoprlol is a β1-specific β-blocker that can reduce cardiac overload and also have anti-inflammatory antioxidant effects and can reduce reactive oxygen metabolites so it can be used as a cardioprotective agent in patients with a high risk of heart failure. To the best of our knowledge, no study has been performed to evaluate the prophylactic effect of bisoprolol solely in patients under chemotherapy with anthracyclines. This study is aimed to evaluate the cardioprotective role of bisoprolol in patients with non-metastatic breast cancer receiving doxorubicin, by measuring global longitudinal strain before and after treatment.

Peripartum cardiomyopathy (PPCM) is a rare, but significant heart disease affecting young women in the puerperal period. Thus far, no specific treatment has been approved to treat this disease. PPCM has a wide spectrum of clinical manifestations ranging from mild heart failure to severe cardiomyopathy, cardiogenic shock and death. A significant proportion of survivors have persistent chronic heart failure leading to disabling symptoms and decreased quality of life. Animal studies have suggested that prolactin is central to the development of PPCM. Prolactin has pro-inflammatory and anti-angiogenic effects that may promote PPCM. Bromocriptine, a central dopamine agonist known to decrease prolactin levels, might thwart its deleterious effects in women suffering from PPCM. Following this rationale, bromocriptine should improve myocardial function in women suffering from PPCM and thus, improve cardiovascular outcomes and healthcare outcomes.