Loading clinical trials...
Browse 6,279 clinical trials for heart disease. Find studies that match your criteria and connect with research centers.
Find trials near:
Showing 1921-1940 of 6,279 trials
NCT02260466
Background: The prevalence of both senile cardiac amyloidosis (CA) and aortic stenosis (AS) markedly increases with age. Aortic stenosis increases left ventricular pressure overload. Cardiac deposits have been observed in AS and the amount of these deposits has been correlated to post-surgical outcome. As they are strong echocardiographic and cardiac MRI imaging similarities between CA and AS, the investigators hypothesized that the deposit observed in AS is transthyretin amyloid deposit. The investigators objective is to demonstrate that amyloid deposit is associated with poor outcomes following aortic stenosis surgical valve replacement. Materiel and methods: 180 patients with indication for surgical aortic valve replacement will be recruited prospectively and consecutively in 5 French centers. A replicative study will be performed in one Austrian center. Echocardiography, cardiac MRI and bone scintigraphy will be performed prior to surgery. During surgery, a basal LV septum biopsy will be collected for determination and quantification of interstitial deposits using specific staining which will be performed in a blind fashion. Clinical outcomes will be recorded during the hospitalization period following the surgery and at 1 year. Alive and re-hospitalization status will be determined. Patients will be classified according to the presence or not of amyloid deposits. Expected results and impact: This study will emphasize how pressure overload stress accelerates and magnifies amyloid deposition usually known to be related to cardiac aging process. It will develop reliable imaging tools and markers to detect cardiac amyloid deposition. Correlation between anatomopathologic analyses and the three different imaging technics will identify accurate imaging markers of CA. A risk stratification model based on amyloid deposits level for the clinical management of these patients will be created combining imaging and biological markers.
NCT05117736
This study is a prospective monocentric, randomized, double-blind, placebo-controlled, crossover clinical trial to assess the efficacy of Sacubitril/Valsartan over placebo in improving exercise capacity and neurohormonal activation in adults with moderate to severe systemic RV dysfunction and NYHA class II or III symptoms.
NCT05049174
A better understanding of how to incorporate effective smoking cessation measures into clinical practice is requested. In this is prospective, multi-center, randomized, open, blinded end-point (PROBE) trial, we assigned daily smokers hospitalized with an acute cardiac event 1:1 to an in-hospital nurse-led smoking cessation intervention with direct referral to further follow-up in the municipal healthy life-centres (intensive intervention) or to written information about smoking cessation and the municipal program (low-threshold intervention) . The primary outcome will be the smoking cessation rates between the groups at 6 months follow-up. Key secondary outcomes include a cost-effectiveness analysis of the intensive intervention and cessation rates at 3- and 12-months follow-up, the proportion who used nicotine replacement therapy and the proportion who attended the healthy-life center program between the two groups. We also assess effects of recurrent cardiovascular events and mortality after 12 months, two and five years follow-up. Exploratory analyses include new knowledge about the patient and system factors of importance for participation to healthy life-centers and for changes in smoking behaviour.
NCT06309537
Patients with heart failure and a preserved left ventricular ejection fraction (HFpEF) almost invariably complain of exertional breathlessness. Abnormal cardiac hemodynamics with pulmonary congestion are believed to trigger dyspnea in this patients. However, some patients may complain of exertional breathlessness which seems to be out of proportion as compared with hemodynamic abnormalities. Chemoreflex sensitivity accounts for the ventilatory responses to a variety of chemical stimuli, including carbon dioxide produced by the organism during exercise. Chemoreflex sensitivity can be augmented in heart failure with reduced left ventricular ejection fraction, and an increased chemoreflex sensitivity has been linked to symptoms, neurohumoral activation, breathing disturbances, and adverse prognosis. However, the clinical correlates and implications of chemoreflex sensitivity in HFpEF have not been accurately studied. We aim to characterize chemoreflex sensitivity in patients with a diagnosis of HFpEF, and to correlate chemoreflex sensitivity with clinical and hemodynamic characteristics.
NCT05194215
This study aims to evaluate the performance of the suggestions made by the WRA by comparing Ada's list of suggested conditions and advice level to usual care and a gold-standard in a Romanian clinical setting.
NCT06252350
The primary objective of this study is to determine whether a reduced radiation protocol (RRP) in which angiograms are acquired at ultralow radiation doses and then processed using spatiotemporal enhancement software can produce similar quality angiographic images as compared with standard techniques.
NCT04231591
The purpose of this study is to determine if NT-BNP levels obtained at time of admission for delivery are predictive of intrapartum or postpartum complications in patients with adult congenital heart disease.
NCT01562782
The purpose of this study is to determine whether hepatic de novo lipogenesis (DNL) in response to the ingestion of a mixture of glucose and fructose is greater in South Asians compared to controls (Caucasians).
NCT06300268
A Prospective, Multicentre, Pilot Study to Evaluate the Safety and Performance of the AdvaPro Sirolimus Eluting Coronary Stent System in Coronary Artery Stenosis in Indian and European Population. To evaluate the performance of AdvaPro Sirolimus Eluting Stent follow up indicated by MACE at 9 months. Of the 120, 40 patients will be assigned to European population and 80 patients will be assigned to Indian population. QCA is applicable for only in sub-strategy participants at baseline and 9 month follow-up visit. A QCA Analysis will be performed on minimum 48 patients in Indian population only. Interval(Days) for patients visit at Day 0, Day 30±6, Day 180±8, Day 270±10 and Day 360±14.
NCT04397939
The study will analyze the incidence, clinical outcomes and predictors of myocardial injury in a large patient population with COVID-19 treated in Mount Sinai Hospital (MSH) system. In addition, the study team will explore the association between high-sensitivity troponin I (TnI) levels and clinical characteristics, biomarkers, cardiac tests data and treatment approaches to uncover the potential mechanisms responsible for COVID-19 induced myocardial injury.
NCT03611933
Aims and objectives: To determine the effect of position change that is applied after percutaneous coronary intervention on vital signs, back pain, and vascular complications. Background: In order to minimize the post-procedure complications, patients are restricted to prolonged bed rest that is always accompanied by back pain and and hemodynamic instability. Design: Randomized-controlled quasi experimental study Methods: The study sample chosen for this study included 200 patients who visited a hospital in Turkey between July 2014 and November 2014. Patients were divided into two groups by randomization. Patients in the control group (CG, n = 100) were put in a supine position, in which the head of the bed (HOB) was elevated to 15°, the patient's leg on the side of the intervention was kept straight and immobile; positional change was applied to patients in the experimental group (EG, n = 100).
NCT05859048
The goal of this study is improve the screening of heart failure and identify patients early who are at risk of heart failure. The main question\[s\] it aims to answer are: • will an electronic health records (EHR) case finding algorithm for heart failure, followed by N-Terminal pro-brain natriuretic peptide (NT-proBNP) screening and artificial intelligence (AI) echocardiogram compared to usual care identify patients at risk for heart failure earlier than standard of care? Participants will be enrolled and randomized to either standard of care (SOC) or intervention arm: SOC arm: electronic health records will be reviewed over six months for assessments performed to identify heart failure. Intervention arm: blood sample for N-terminal prohormone of B-type natriuretic peptide (NT-proBNP) at local laboratory . For elevated NT-proBNP results (\>125pg/ml) an artificial intelligence (AI) echocardiogram and 12 lead electrocardiogram (ECG) will be performed at study site (within 28 days of NT-proBNP result). EHR will be reviewed at six months
NCT05692063
This project has several objectives ranging from clinical data analysis to computational simulations as listed below: A) Clinical objectives: 1. Retrospective review of all patients with AAOCA treated surgically and followed medically at the IRCCS Policlinico San Donato aiming to identify risk factors for ischemia or sudden cardiac deaths. 2. Prospective follow-up of all enrolled patients, treated and followed, in adjunct to all the new patients referred aiming to follow across the years any potential rare adverse event (ischemia, angina event, sudden cardiac death). B) Experimental objectives: 1. Retrieve morphological measurements from CT or MRI (de-identified) of the aortic root and the coronary vessels following the previous work of our group. 2. Construct a parametric model of the aortic root defined by population-based morphologic parameters to describe both healthy/diseased population. 3. Run solid mechanics simulation mimicking the movement of the aortic root in order to test configurations at more risk. 4. Reconstruct 3D surfaces representing the coronary vasculature from imaging for automatically perform the parameter estimation and run computational fluid dynamics simulations.
NCT02168049
The investigator goal is to test a new device to see if it can provide continuous and simultaneous monitoring of heart and lung function.
NCT04928326
This is an observational study to evaluate the agreement between the InCardia diagnostic technology CorWatch for the assessment of venous pressure in human subjects. This includes evaluation of InCardia technology in heart failure (HF) patients undergoing invasive right heart catheterization in a cardiac catheterization laboratory (cath lab) and in a cardiac intensive care unit (ICU).
NCT04698902
Calcified coronary artery disease is a frequently encountered problem that can lead to poorer outcomes for patients undergoing PCI. Recently, intravascular lithotripsy has become available for the treatment of callcified coronary artery disease. The effect of intravascular lithotripsy on varying calcium patterns has not been adequately explored. This is an investigator initiated, open label, non-blinded, observational study involving a number of centers in Spain examining the effect of intravasuclar lithotripsy in varying calcium patterns. 100 patients wll be enrolled. Optical coherence tomography will be used to assess the effect of intravascular lithotripsy on varying calcium patterns (concentric, eccentric and nodular).
NCT06295978
Chest pain is one of the most common causes of access in the Emergency Room, and it can be a clinical manifestation of a broad spectrum of diseases including those 'time dependent' conditions such as acute coronary syndrome (ACS). Diagnosis or exclusion of acute myocardial infarction (AMI) is a daily challenge in the emergency department (ED), especially when classic clinical criteria and ECG alone are unable to make the diagnosis. The ED physician has the extremely delicate task of managing patients with chest pain and being able to frame them correctly; therefore, he needs to make differential diagnosis since chest pain can be caused by non-cardiac vascular events but also extra-cardiovascular events, such as pulmonary, neurological, osteoarticular, gastrointestinal and psychological. Recently, the importance of inflammatory processes and endothelial damage in cardiovascular disease has been highlighted, and consequently the focus has been on new markers, in a "multimarker" approach in which the strengths of each are combined together to provide an optimal solution to a clinical problem. The data suggest how a future integration of these biomarkers in the routine approach to the patient with acute chest pain in the ED might allow a better patient stratification and proper management, allowing the clinician to make an early safe discharge or a timely admission for those who deserve in-depth diagnostic-therapeutic investigation.
NCT06091774
This study will test a controlled investigation of the efficacy and effectiveness of iATROS digital therapy management for risk factor adjustment in patients with coronary heart disease (CHD).
NCT05288387
This is a prospective single-center study that aims to evaluate the effects of non-invasive transcutaneous spinal cord stimulation on systemic and pulmonary hemodynamics, assessed during right heart catheterization in patients with heart failure and persistent or transient hypotension subjected to be included into the heart transplantation waiting list.
NCT02486315
The Axxess™ Biolimus A9™ Eluting Coronary Bifurcation Stent System (AXXESS System; Biosensors, International, Morges, Switzerland) is a dedicated bifurcation stent, designed to cover the lesion at the level of the carina. Although deemed ideal for lesions involving only the proximal MV (1,0,0 according to Medina classification ref), this device may be used also in more complex bifurcation lesions when additional DES are required in the distal MV and/or in the SB. In the present registry the investigators report the performance and the efficacy of the self-expanding biolimus-eluting AxxessTM stent for the treatment of bifurcation lesions in a real-world population.
