View clinical trials related to Heart Diseases.
Filter by:In this trial we intend to evaluate the safety and effectiveness of the INSPIRIS valve prothesis in the pulmonary position in patients of five years or older, with congenital or acquired pulmonary valve disease, requiring replacement of their native or prosthetic pulmonary valve.
The purpose of this research is to validate the prototype AI-Flex device. Researchers at Mayo Clinic developed a new a flexible multi-modal bio-sensing device, AI-Flex, with integrated artificial intelligence (AI) capability. Integration of sensing and AI analysis on the same device removes the need for data storage on the cloud for later analysis. The goal of the device is to allow real-time monitoring of patient health and timely intervention based on patient health condition. It is hoped that the proposed flexible device will allow intimate skin contact using ultra-thin (<10 µm) geometry to reduce or eliminate relative movement between the skin and flexible epidermal sensors even during rapid motion of the subject, which would significantly improve the sensor signal quality for AI analysis.
The treatment of adult patients with congenital heart disease (ACHD) and heart failure (HF) represents a great challenge since, to date, there is no standardized guideline for this specific population. Although new treatments for HF have been proposed, such as Sodium-glucose Cotransporter-2 (SGLT2) Inhibitors and neprilisin and angiotensin receptor inhibitors, the benefit of these drugs in patients with HF associated with congenital heart disease in adults has not yet been demonstrated. For this reason, this study pretends to evaluate the efficacy of empagliflozin and sacubitril/valsartan in this population.
Congenital heart disease (CHD) is the most common congenital abnormality found in newborns with Tetralogy of Fallot (TOF) being the most common cyanotic CHD. Total correction of TOF was performed using a cardiopulmonary bypass (CPB) machine. However, the use of CPB has a negative effect that causes inflammation and myocardial injury. Myocardial protection in patients undergoing total correction of TOF surgery is more difficult than other cyanotic CHD due to a hypertrophic right ventricular condition. Dexmedetomidine (DEX) is a selective α-2 adrenergic, which has major effects including hypnosis, sedation, and analgesia as well as cardiovascular effects. The sedation is induced by stimulating the α-2 adrenergic receptor in the locus coeruleus (LC) in the pons cerebri. DEX also increases the level of GABA and Galanin and reduces endogenous norepinephrine. The lower level of endogenous norepinephrine decreases the afterload of the ventricles, increases cardiac output, and reduces myocardial injury as a result. Furthermore, the peripheral effects of DEX can reduce myocardial ischemia-reperfusion (MIR) by inhibiting NF-кB pathway activation and reducing the number of pro-inflammatory cytokines released. Thus, the administration of DEX can prevent myocardial necrosis and apoptosis, also reducing reperfusion injury when using CPB machines. Research related to the effectiveness of administering DEX as a myocardial protector in classic TOF patients undergoing elective total correction cardiac surgery in Indonesia is less reported. The aim of this study is to determine the effectiveness of DEX as myocardial protector in classic TOF patients undergoing elective total correction cardiac surgery.
Introduction. Ischemic cardiomyopathy is one of the death leading causes in industrialized countries. Up-to-date ESC guidelines recommend a surgical approach (coronary by pass graft) in patients with multivessel coronaropathy, with involvement of left main (LM) or proximal left anterior descending (LAD) artery. In any case, is recommended the use of the internal thoracic artery (ITA) as conduct of choice. In consideration of the very strong evidence supporting the use of ITA, the study objective is to analyze and compare some blood markers collected from ITA blood vs. LAD blood, with the purpose of better understanding the technique benefits from a biological point of view, being the hemodynamic one already evident. Methods. Forty patients scheduled for coronary bypass graft (CABG) surgery at the Cardiac Surgery Unit of European Hospital of Rome will be enrolled. Patients which intervention includes off-pump ITA-LAD anastomosis will be included. For each patient blood sample from ITA and LAD will be collected. On those samples, polymorphonuclear leukocytes and platelets activity, endothelial dysfunction, oxidative stress and inflammatory burden will be analysed. In patients in which a pre-operative coronary CT scan is available, findings will be correlated with atherosclerotic plaque morphology. Expected results. Diseased LAD's blood will have a deranged markers profile compared with ITA's, with augmented inflammatory burden, reduce NO availability and increased platelet activation. In the patients subgroup with available coronary CT scan will be possible to esteem the effective blood mixing and speculate on a possible pharmacological effect of CABG, in terms of dilution of inflammatory burden in the target vessel.
This study seeks to investigate the clinical value of novel echocardiographic indices, including myocardial work parameters, during the acute phase of heart failure hospitalization. The trajectory of novel echocardiographic indices from the start to the end of hospitalization will be captured, as a means to unravel and subsequently better understand the diverse pathophysiology of different phenotypes of the heart failure continuum. Correlation between novel echocardiographic indices with clinical data, biochemical data, different heart failure phenotypes, and therapeutic maneuvers will be attempted. Prognostic implications of those indices will be explored.
Depression is a known risk factor for cardiovascular disease (CVD), and this comorbidity contributes significantly to the morbidity and mortality of women. The menopausal transition or perimenopause is a period of vulnerability for both depression and CVD, making it a key time to study this critical public health issue. This research will preliminarily explore whether disruption in two novel stress pathways 1) the renin-angiotensin-aldosterone system (RAAS) and autonomic nervous system (ANS) and their relationship may underlie the link between these illnesses. Findings will provide important insight into potential mechanisms by which depression during perimenopause may increase risk for CVD in midlife women, which will inform potential risk reduction and treatment strategies that can improve health outcomes in this population.
Around 3500 children including 1,000 babies a year in the UK require heart surgery. Open-heart repairs involve the heart being stopped, while blood is pumped around the body using a cardiopulmonary bypass machine. Following complex operations, the patient may temporarily develop poor heart function, leading to reduced organ blood supply. Low heart output leads to post-operative complications or even death. The current methods to assess cardiac output and to see if vital organs, especially the brain, are receiving enough blood flow, are indirect and can be inaccurate. If we find a better way to detect and then avert or ameliorate periods of poor cardiac output and / or reduced brain perfusion, then this would be helpful for clinicians and could lead to better outcomes for children. We believe that optical coherence tomography angiography (OCTA), a non-invasive way to image the blood vessels in the retina at the back of the eye, could help us to assess cardiac output and brain perfusion. The OCTA machine was approved for use in humans in 2019 and given a CE Marking, but it has previously been used mainly in the management of eye diseases. There is a small amount of experience with its use in critically ill adults. We plan a pilot study to see if it is possible to use the OCTA machine at key time points, before, during and after children's heart operations, in 30 patients. We will study the images taken with OCTA machine to see if they are of good quality and we will analyze the images to see whether or not the expected changes in cardiac output and brain perfusion that occur with heart surgery can be detected as changes in blood flow in the back of the eye. Depending on the success of this pilot, we will plan further studies.
Background: Simulation-based training in transesophageal echocardiography (TEE) seems promising. However, data are limited to non-randomized or single-center studies. Objectives: This large multicenter randomized, parallel-group, unblinded, study will assess the impact of simulation-based versus traditional teaching on TEE knowledge and performance for medical fellows in cardiology. Eligibility: - All consecutive fellows in cardiology of all training levels (year 1-4) - who have never performed a TEE alone Design: - Multicenter, parallel-group, unblinded, randomized study with a prospective enrollment of all consecutive fellows in cardiology of all training level (year 1 to 4) who were recruited in 42 centers throughout France. - Randomization with stratification by center will be performed at the individual (fellow) level in 1:1 ratio to assign all the fellows to the traditional group or to the TEE simulation-based training group. - Each participant will complete two different tests during the study: 1) a pre-training test before starting the educational program; and 2) a final test performed 3 months after the end of the educational program. Each of these tests will include a theoretical test and a practical test on a TEE simulator. - The coprimary outcomes of the study to compare the two groups will be the scores in the final theoretical and practical tests after the training will be completed.
The study includes two parts: Part 1: - 100 examinations of patient referred for echo evaluation, containing clips that were acquired from the 4CH apical view were collected retrospectively. Each study includes 10 clips that represent typical user scanning errors - Offline evaluation of the system (by batch processing) shall be performed by comparing the system output to preliminary quality tagging by experienced sonographers Part 2: - Live scans of apical 4CH clips of patients with indication for POCUS examination will be performed by POC physicians - LVivo IQS shall be used (on Lumify) during the scan for patients that meet inclusion criteria until 50 exams will be collected. 3 sec of each scan shall be saved, and Image quality score (IQS) shall be documented - Saved scans shall be reviewed by an expert physician to determine whether they are clinically interpretable