View clinical trials related to Ventricular Dysfunction, Left.
Filter by:This is a randomized, prospective, single-blinded trial to determine the overall rate of successful His-Purkinje conduction system pacing Optimized Trial of Cardiac Resynchronization Therapy (HOT-CRT) versus biventricular pacing using coronary sinus lead (BVP) to compare acute and mid-term outcomes. Acute outcomes include change in QRS duration pre-and post-pacing (degree of QRS narrowing) and incidence of major periprocedural complications (pericardial tamponade, need for lead revision, etc.). Mid-term outcomes include echocardiographic response at 6 months along with a composite clinical outcome of heart failure hospitalization, ventricular arrhythmias, crossover, and all-cause mortality.
Left ventricular diastolic dysfunction is caused by impaired relaxation and increased left ventricular stiffness with a consequent increase in filling pressures. Currently, it is possible to classify it in 3 grades: grade 1 with normal filling pressures, grade 2 and grade 3 with high pressures. Diastolic dysfunction is closely associated with several risk factors such as hypertension, diabetes, and obesity, as well as the risk of heart failure, cardiovascular events, and death. In the field of cerebrovascular diseases, however, diastolic dysfunction is still being researched. Thus, this study aims to: 1) evaluate the white matter hyperintensities volume in association with the increase of diastolic dysfunction and filling pressures 2) evaluate the possible association with carotid atherosclerosis in case of brain damage caused by dysfunction diastolic 3) understand the mechanism of damage caused by left ventricular diastolic dysfunction on the cerebrovascular system. In order to do this, this study proposes to evaluate in a cohort of patients, between 35 and 65 years, the possible association of diastolic dysfunction with lesions on the cerebrovascular system in a future view of new marker of brain damage and new modifiable risk factor.
Cardiac dysfunction has been reported to be common in patients infected with COVID-19. The aim of this study is to evaluate the clinical importance of cardiac dysfunction in critically ill patients infected with COVID-19.
preserved left ventricular ejection fraction (LVEF ≥ 50%) and are accompanied by dyslipidemia (LDL ≥ 100 mg / dl) will be enrolled. Only patients who do not meet the exclusion criteria should be enrolled in the study. Once the patient is selected, the patient is informed of the study and receives the consent form. Patients who are eligible for all of the criteria and who do not qualify as exclusion criteria should be enrolled in the study and randomly assigned in a 1: 1 dose of rosuvastatin/ezetimibe 10/10mg once daily or rosuvastatin 20 mg once daily. Patients who previously used statins have a wash-out period of 4 weeks or more. Patients will visit outpatient clinic at 12 weeks and 24 weeks after initiation of treatment. Physical examination, blood test, and 6 minute working test will be performed. For fasting blood tests, patients visit on an empty stomach. Drug adverse events and changes in vital signs or body weight will be checked. After 48 weeks of treatment, the patients will visit outpatient clinic for efficacy evaluation; physical examination, blood test, transthoracic echocardiography, cardiopulmonary exercise test, central blood pressure, and pulse wave velocity. Drug adverse events and medication compliance will be checked. The primary endpoint is change of low-density lipoprotein cholesterol and secondary endpoint is improvement of diastolic dysfunction, VAC index, peak VO2, distance of 6 minute working test, and clinical outcomes including death, readmission rate.
Intra-Aortic Balloon Pumps (IABP) is a widely used and effective left ventricular adjuvant therapy. IABP is an inflatable device placed in the aorta that inflates with diastole and deflates with systole. The aim of this study is to investigate the outcome of patients treated With IABP, and to evaluate the short-term and long-term outcomes of patients with IABP.
The purpose of this research is to prospectively test and validate the single-lead Low EF algorithm in outpatients in order to test the performance of a single-lead ECG based algorithm to identify people with decreased left ventricular EF.
To establish the range of TMADmid、TMADmidpt% by using tissue motion tracking of mitral annular displacement (TMAD), and to explore the influencing factors.
This prospective study evaluates the mechanisms of benefit of sacubitril/valsartan in a population of outpatients with heart failure with reduced ejection fraction, to investigate the relationship between the effects on left ventricular ejection fraction and volumes and noninvasively hemodynamic echo-derived parameters, as cardiac output and left ventricular filling pressure.
Coronavirus Disease 2019 (COVID-19) emerged in December 2019, and in mere few months has resulted in a pandemic of viral pneumonia. Substantial proportion of patients with COVID-19 have biochemical evidence of myocardial injuries during the acute phase. Possible mechanisms including acute coronary events, cytokine storm, and COVID-19 related myocarditis, have been postulated for the cardiac involvement in COVID-19. It is uncertain whether COVID-19 survivors are at risk cardiac dysfunction including cardiac arrhythmia and heart failure. The prospective screening study aims to evaluate the possible latent effects from COVID-19 in COVID-19 survivors. COVID-19 survivors 4-6 weeks after hospital discharge will be recruited from the Infectious Disease clinic, Queen Mary Hospital with standard 12-lead electrocardiogram, serum troponin, NT-proBNP, and standard transthoracic echocardiogram. The outcome measures include (1) new onset cardiac arrhythmia, (2) N Terminal (NT)-proBNP elevation above the diagnostic range of heart failure, and (3) newly detected left ventricular dysfunction.
The outbreak of coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has been declared a public health emergency of international concern. Hospitalized COVID-19-positive patients requiring ICU care is increasing along with the course of epidemic. A large number of these patients developed acute respiratory distress syndrome (ARDS) according to current data. However, the related hemodynamic characteristic has so far been rarely described.