View clinical trials related to Death.
Filter by:This study aims to evaluate the electrophysiological properties of the heart conduction system in patients with unexplained polymorphic ventricular tachycardia (VT) and/or ventricular fibrillation (VF), in patients with specific genetic mutations regarding sudden cardiac death or sudden cardiac arrest, in their family members and in a control cohort. The electrophysiological properties will be measured with the relatively new technique ECG-Imaging (ECGI). Also a National Dutch registry for patients with unexplained polymorphic VT and/or VF and their family members will be created. By combining the data from the registry and the results of ECGI, The investigators hope to identity risk markers for patients at higher risk for apparently idiopathic ventricular fibrillation, and use these for an adapted flow chart for the 'general'population of patients at risk for unexplained polymorphic VT and/or VF. The investigators aim to be able to identify patients before the first arrhythmic event, and aim for better treatment strategies in the future.
The aim of the project is to establish the value of circulating microparticles as a new biomarker for neurological prognosis of patients recovered from sudden cardiac death who remain comatose.
Sudden cardiac death (SCD) is one of the major causes of mortality in adults with congenital heart disease (ACHD). Risk stratification for sudden cardiac death in this patient group is challenging and at the current moment there are no clear guidelines on implantable cardioverter-defibrillator (ICD) implantation for primary prevention of SCD in this young patient population. The reason for this is the fact that this is a heterogenous group of patients and SCD is a relatively rare event. Because of this there have been no prospective studies on SCD in ACHD. However, multiple retrospective studies on ICD implantation in ACHD have shown that this treatment does appear to be effective. Researchers from the Academic Medical Center have identified several risk factors for sudden cardiac death. A risk score was created using this data, which has been validated in an internal and external cohort in a retrospective setting. The design of this study, including the conception of the risk score, its calculation method and validation will be published in an international scientific peer-reviewed journal. The hypothesis of this study is that the risk score accurately predicts the risk of sudden cardiac death.
The main purpose of this study is to increase the pool of organs available for donation by performing ARP to recondition donation after cardiac death (DCD) organs prior to transplantation. We will compare the outcomes of our ARP DCD liver transplants with historical data to determine the efficacy of this treatment compared to transplantation with standard DCD and donation after brain death (DBD) organs. We will also analyze biological samples from donors and recipients and compare them with outcome data in an effort to determine if any biological markers are able to predict the quality/success of the grafts.
World-wide, patients waiting for organ transplantation exceed the number of organs available. Many European countries have a uDCDD program which contribute to 10-15% of the donor pool. In Canada, this type of program does not exist. The purpose of this study is to report how many deceased person fulfill the criteria for uncontrolled DCDD in a Canadian medical center.
Measurement of Free PSA ratio in patients after definitive radical treatment for prostate cancer, and assessment of whether post-treatment free PSA ratio can function as a biomarker for advanced disease in prostate cancer patients.
Randomized controlled trial of acute use of electronic cigarette or tobacco cigarette on parameters of ventricular repolarization.
Obesity, rheumatoid arthritis (RA) and gene-specific dilated cardiomyopathy (DCM) are common medical conditions. Small-scale studies have shown that these are associated with proarrhythmic changes on 12-lead electrocardiogram (ECG) and a higher risk of sudden cardiac death (SCD). However, these studies lack the deep electrophysiological phenotyping required to explain their observations. Electrocardiographic imaging (ECGi) is a non-invasive alternative to 12-lead ECG, by which epicardial potentials, electrograms and activation sequences can be recorded to study adverse electrophysiological modelling in greater depth and on a more focussed, subject-specific scale. Therefore, this study proposes to better define the risk of arrhythmia and understand the underlying adverse electrophysiological remodelling conferring this risk in three groups (obesity, RA and DCM). Firstly, data from two large, national repositories will be analysed to identify associations between routine clinical biomarkers and proarrhythmic 12-lead ECG parameters, to confirm adverse electrophysiological remodelling and a higher risk of arrhythmia. Secondly,ECGi will be performed before and after planned clinical intervention in obese and RA patients, and at baseline in titin-truncating variant (TTNtv)-positive and -negative DCM patients, to characterise the specific and potentially reversible conduction and repolarisation abnormalities that may underlie increased arrhythmic risk.
End-of-life (EOL) care has garnered increasing recognition and acceptance in the field of emergency medicine. Some emergency departments (EDs) in Singapore have instituted or plan to institute EOL care as part of the workflow. However, the EOL protocols are not standardised across all these EDs. The adherence to and quality of EOL care have not been formally measured in all institutions. Hence, gaps to improve the quality of care have yet to be determined. The aims are to systematically measure the current quality of EOL care in three Singapore hospital EDs and identify the quality gaps; formulate interventions to address these gaps and implement the improved EOL care; and measure the improvement post-implementation. The investigators hypothesise that the current quality of EOL care in three EDs is suboptimal and the interventions planned will improve the quality of care provided. The study team plans to conduct an interrupted time series study to detect whether the interventions have an effect significantly greater than any underlying trend over time. The quality of care indicators to be measured are timely identification of patients who require EOL care, adequacy of symptom control based on compliance to prescriptions, opportunities to discuss and develop an individualised care plan, perceived quality of care by healthcare providers and next-of-kin, and cost effectiveness. Planned interventions include refining the protocol with collaboration of content experts in palliative care, education and training of healthcare providers, and addressing specific gaps identified to improve cost effectiveness. The results of this study will form the standardisation and foundation for establishing the national benchmark for quality of EOL care in Singapore EDs.
Investigators will establish a longitudinal cohort of ~3,000 adults >18 years in Port-au-Prince using multistage random sampling, and follow them longitudinally to evaluate the prevalence and incidence of cardiovascular disease risk factors and diseases. Cardiovascular risk factors include hypertension, diabetes, obesity, dyslipidemia, kidney disease, poor diet, cigarette smoking, physical inactivity, and inflammation. Cardiovascular disease include angina and myocardial infarction, heart failure, stroke, and CVD mortality. It is anticipated that hypertension prevalence will be ≥10% in 18-30 year olds, that hypertension incidence will be >10 events/1000 person years. Association of determinants and risk factors with CVD will also be examined. Whole blood, serum, plasma, stool, and urine samples will be biobanked for future studies.