Cardiac Arrest

Researchers are working to create risk prediction models that help identify patients with a high risk of developing serious cardiovascular problems. The study focuses on individuals with structural, rhythm-related, or inflammatory cardiovascular diseases and aims to improve early detection of those at risk. This observational study is sponsored by the Medical University Innsbruck and includes adults 18 years and older. Participants in this study have their clinical data and risk factors recorded to better understand their cardiovascular condition. There are no specific treatments or interventions given as part of the study since it is observational. The study will follow patients for up to four years to observe outcomes related to cardiovascular events and hospitalizations. During the study, researchers will monitor events such as cardiovascular mortality, stroke, heart attacks, hospital stays due to heart failure, and other severe heart-related conditions. Participants will be assessed regularly through clinical data collection without additional procedures or treatments. The study aims to gather detailed information over time to improve risk assessment and patient care for cardiovascular diseases.

Noncommunicable diseases like type 2 diabetes and cardiovascular disease cause more deaths worldwide than any other conditions, with a growing impact especially in low- and middle-income countries. Cardiovascular disease (CVD) is a leading cause of death globally, and its prevalence is rising despite awareness efforts. Diet and nutrition are important factors influencing these diseases, and this research explores the role of a traditional Chinese medicine nutritional drink in supporting cardiovascular health. The study evaluates the effects of the "Perfect Heartio" drink, a nutritional supplement made from diluted herbal extracts traditionally used in Chinese medicine. Participants will consume 15 grams of the drink twice daily for 12 weeks while their compliance is monitored. This intervention is being studied to assess its potential in improving heart and blood vessel function by measuring various cardiovascular health indicators. Participants will be assessed at the start and at weeks 4, 8, and 12 for lipid profiles, heart inflammation, heart injury, and heart remodeling. Quality of life and self-perceived health status will also be evaluated over these timepoints. The study includes healthy adults aged 18 and above who agree to follow the intervention plan and attend follow-up visits. Monitoring throughout the study will help researchers understand the drink's impact on cardiovascular health markers over the 12-week period.

Researchers are conducting the 100-Year Human Aging Study, an observational trial designed to follow participants over their lifespans to investigate which health measurements can predict mortality, serious diseases, and functional disability. The study aims to validate many longevity measures that currently lack prospective evidence by tracking physiological, cognitive, social, and environmental factors that change with aging. This research will generate important data to improve understanding of aging and longevity medicine. Participants undergo comprehensive multi-system clinical screenings including tests like cardiopulmonary exercise testing, body composition assessment by DEXA, echocardiography, electrocardiography, spirometry, neurocognitive testing, sensory assessments, metabolic testing, and detailed medical and social histories. The study allows for different levels of participation, from single tests to full two-visit screening batteries, and encourages repeat testing to capture health changes over time. During the study, participants receive individualized reports including investigational estimates of biological age and predicted cause of death. Researchers collect data on mortality, serious health events, chronic diseases, functional ability, and lifestyle changes through periodic follow-up over many years, potentially up to 100 years. This extensive data collection helps evaluate how well these measurements predict aging outcomes. All data are stored in raw form for future analysis and participants are supported with ongoing contact and opportunities for repeat assessments.

Researchers are conducting the GENESIS clinical study to map the HLA genomic region in the Greek population and explore its possible links with various underlying diseases. This non-interventional, multicenter study aims to provide a pilot map of genetic variation in HLA that may be useful in medical research and clinical applications related to selected diseases. The study plans to include 12,000 participants over a total duration of 36 months. Each participant will attend one visit at a participating site during which they will provide demographic data, lifestyle information such as smoking and alcohol use, blood pressure measurements, details on diagnosed diseases and treatments, and recent laboratory test results if available. Buccal swab samples will be collected from each participant to extract DNA for HLA genotyping analysis. Selected samples will undergo further whole genome sequencing to investigate associations with autoimmune diseases. Participants will receive a personalized ancestry report after analysis completion. During the study visit, data collection includes demographic and health information, as well as laboratory and clinical test results from the past year. The genetic material from buccal swabs will be stored and processed for genetic analysis. Researchers will measure allele frequency of HLA alleles in the Greek population and assess the prevalence and risk associations of selected HLA-related diseases. The study's total duration is 36 months with results available at the end of this period.

This clinical trial studies the use of a linear cognitive aid app designed to help emergency medical service (EMS) teams respond to pediatric emergencies. Researchers want to see if this new tool is practical and well accepted by EMS teams in both urban and rural settings. The study compares current standard cognitive aids with the new linear cognitive aid during simulated critical resuscitation scenarios for children. Participants will be randomized into two groups: one using their current standard cognitive aids, and the other using the linear cognitive aid app. Each team will perform two high-fidelity, in situ simulations of critical pediatric resuscitation emergencies. The linear cognitive aid app offers minimal input, linear step-by-step guidance, tailored recommendations based on the patient’s age and scenario, and audio prompts timed to the resuscitation process. During the study, researchers will assess the time it takes teams to reach American Heart Association (AHA) technical milestones, teamwork quality, and participants' perceived cognitive load during each 10-minute simulation. The study aims to evaluate how well teams perform and how the different cognitive aids affect their experience. The trial is led by Beth Israel Deaconess Medical Center and includes adult EMS providers who speak English and are actively practicing.

Study population includes subjects who are hypertension, of any race or ethnicity, 18 or older years of age, and have provided written informed consent to provide whole blood specimens at one or more study visits. Physical examination, questionnaire survey and biological sample collection will be conducted at baseline and the incidence of all-cause and cardiovascular mortality will be investigated during follow-up.

Researchers are evaluating the potential benefits of implanting an implantable cardioverter defibrillator (ICD) in patients with coronary artery disease who have survived cardiac arrest caused by ventricular fibrillation or sustained ventricular tachycardia. These patients have undergone complete revascularization and have a left ventricular ejection fraction (LVEF) above 35%. The study aims to assess whether ICD implantation can improve survival outcomes compared to standard medical therapy. Participants are randomly assigned to one of two groups: one group receives an ICD implanted either during admission or within 4 weeks after discharge from the initial cardiac event, while the other group receives guideline-directed medical therapy without ICD implantation. The study compares these approaches to understand the effect of ICDs on survival in this patient population. During the study, participants will be monitored for outcomes including all-cause mortality over a five-year period, as well as mortality related to cardiovascular causes at one year. Researchers will collect data on sudden cardiovascular death and cardiovascular death within the first year. The trial includes follow-up assessments to track these outcomes and the overall health of participants throughout the study duration.

Researchers are evaluating whether a digital lifestyle intervention developed within Swedish primary healthcare can improve important heart health outcomes and lifestyle habits. This study focuses on adults aged 40 to 60 years with cardiovascular risk factors and aims to prevent cardiovascular diseases by supporting healthier behaviors such as diet, physical activity, alcohol use, and tobacco use. Participants are randomly assigned to either receive the digital lifestyle intervention or continue with standard care. All participants have a structured health dialogue focused on lifestyle habits. Those in the intervention group also get access to digital lectures, home assignments, group meetings, and personalized support from healthcare providers. The study measures outcomes primarily at 6 months after randomization. During the study, participants will be monitored for changes in LDL-cholesterol, blood lipids, blood sugar, blood pressure, weight, body measurements, cardiovascular risk, and lifestyle behaviors including diet, physical activity, sleep, stress, alcohol, and tobacco use. Quality of life and participant experiences with the digital intervention will also be assessed. The total participation includes follow-up assessments at 6 months to evaluate the intervention's impact on heart health and lifestyle.

Researchers are evaluating a family-centred approach to prevent cardiovascular diseases (CVD) among adolescents and their families in Uganda. This 5-year study focuses on reducing risk factors like unhealthy diet and physical inactivity that contribute to CVD and other non-communicable diseases (NCDs). The study adapts a proven intervention from Asia to the Ugandan context, aiming to support healthier lifestyle behaviors during the critical adolescence period when habits form that affect adult health. The study includes two groups: one receiving the FaCe-D intervention, which involves home visits by Village Health Teams delivering diet, physical activity, and health messaging; and a control group receiving standard care with usual health promotion activities. The study is divided into three phases: adapting the intervention, implementing it, and evaluating its effectiveness and feasibility in 32 villages. Participants will be involved for at least 12 months, during which researchers will assess changes in cardiovascular health and sleep quality. Evaluations include monitoring behavior changes, health outcomes, and implementation costs. The study also considers adoption and feasibility to understand how well the intervention works in real community settings.

This research aims to understand how menopause affects the risk of cardiovascular diseases such as atherosclerosis, heart attacks, and strokes in women. It focuses on the time around menopause when estrogen production stops, which is linked to a higher risk of these conditions. The study will follow 200 women from before menopause to at least 10 years after, using advanced methods to observe changes in blood vessels, the heart, and the brain, along with microRNA analysis of blood and tissue samples. Participants will be observed over a long period with repeated assessments before menopause and at 1, 3, 5, 10, and 20 years after menopause. These assessments include invasive and non-invasive measures of vascular function, as well as monitoring changes in skeletal muscle proteins and RNA expression from muscle and blood samples. Blood pressure will also be tracked regularly during this time. Women involved in the study will undergo detailed cardiovascular and biological evaluations at various time points throughout the study. This includes tests of blood vessel function, muscle tissue analysis, and blood sample collections. The researchers will also monitor blood pressure and other health indicators to understand the long-term impact of menopause on cardiovascular health. The total participation may last over 20 years, providing extensive data on how menopause influences disease risk over time.