Cardiac ischemia occurs when blood flow to the heart muscle is reduced, affecting heart function and overall cardiovascular health. Clinical trials for cardiac ischemia explore various treatment evaluations, including novel therapies and intervention...

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Found 1648 Actively Recruiting clinical trials

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Actively Recruiting

Researchers are evaluating whether the Breathlessness diagnostics in a Box (BiaB) tool can shorten the time to diagnosis for patients experiencing breathlessness compared to usual care. This prospective, interventional study uses a stepped-wedge cluster design in general practice settings across the Netherlands, Spain, and Portugal. The main goal is to see if BiaB speeds up diagnosis, with secondary aims to identify more cases of chronic obstructive pulmonary disease (COPD) and cardiovascular disease (CVD), and to assess the tool's usability and efficiency. The study involves 45 general practice sites that start with a usual care period and sequentially transition to using the BiaB tool. Patients receive care as part of their regular visits, either through standard diagnostic procedures or with support from BiaB. No additional treatments are mandated by the study. Each site participates for 40 weeks, and data are gathered from routine clinical visits, electronic medical records, and questionnaires completed by patients and healthcare professionals. Participants attend a single study visit and may complete up to four quarterly questionnaires over a follow-up period lasting up to one year. Researchers measure the time from first presentation of breathlessness to diagnosis, the number of new COPD and CVD diagnoses, and the usability of the BiaB tool. Data are collected continuously during the usual care and intervention phases, allowing comparison of outcomes between these periods.

Age: 18Years +All GendersPhase Not Applicable
3 locations
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Actively Recruiting

Spinal anesthesia-induced hypotension is a common and significant complication affecting up to 50-80% of pregnant women undergoing elective cesarean section. This trial evaluates whether a brief 5-minute mindfulness-based breathing exercise given just before spinal anesthesia can influence blood pressure changes during surgery. The study compares this breathing technique to standard care in pregnant women aged 18 to 45 years scheduled for elective cesarean delivery. Participants will be randomly assigned to either perform the mindfulness-based breathing exercise or receive standard preoperative care. The breathing exercise involves slow diaphragmatic breathing at about six breaths per minute, guided by a trained anesthesiologist or nurse, with mindful repetition of the phrase "My body is relaxing as I exhale." Both groups receive spinal anesthesia with specific medications, and careful monitoring of heart rate and blood pressure is performed. During the study, participants will be closely observed for changes in systolic blood pressure and heart rate within 10 minutes after spinal anesthesia. Anxiety levels, incidence of early hypotension, and medication use to support blood pressure will also be measured. The trial includes standard monitoring such as ECG and oxygen saturation, with safety and response data collected throughout the procedure. Participants' involvement includes a short breathing exercise or equivalent wait time before anesthesia, with follow-up assessments during surgery.

Age: 18Years - 45YearsFEMALEPhase Not Applicable
1 location
E

Actively Recruiting

Healthy Volunteer

Researchers are evaluating erectile function changes in male patients who undergo percutaneous coronary intervention (PCI) for either a heart attack or stable angina. The study aims to understand how myocardial infarction affects erectile function over time and to explore whether erectile dysfunction can predict future cardiac events. This observational study compares erectile function between patients with myocardial infarction and those with stable angina using standardized questionnaires. Participants are grouped into two sets: those treated with PCI after a heart attack and those treated due to stable angina. Erectile function is assessed at baseline (after recovery from PCI), and at 3 and 6 months post-procedure using the International Index of Erectile Function (IIEF) questionnaire. Additional assessments include the Beck Depression Inventory and Fear of Cardiac Recurrence and Progression Scale. Researchers also collect clinical data such as cardiac vessel scores, ejection fraction, testosterone levels, body measurements, medication use, and the intervention method. During the study, male participants aged 30 to 75 will complete face-to-face interviews and questionnaires at specified intervals: baseline, 3 months, and 6 months after PCI. The study measures changes in erectile function scores over time and examines associations with cardiac health, depression, and anxiety symptoms. Safety and participation are monitored throughout the follow-up period. The total duration of involvement is up to 6 months, with evaluations focusing on erectile function and related health parameters.

Age: 30Years - 75YearsMALE
1 location
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Actively Recruiting

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.

Age: 18Years +All Genders
2 locations
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Actively Recruiting

Healthy Volunteer

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.

Age: 18Years +All GendersPhase Not Applicable
1 location
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Actively Recruiting

Healthy Volunteer

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.

Age: 18Years +All Genders
1 location
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Actively Recruiting

Researchers are studying patients with elevated Lipoprotein(a) levels above 30 mg/dL who have undergone percutaneous coronary intervention (PCI) with drug-eluting stent (DES) implantation but have not experienced cardiovascular events or significant bleeding within 12 months after the procedure. The trial aims to compare whether extending dual antiplatelet therapy (DAPT) from the standard 12 months to 24 months can reduce major adverse cardiovascular and cerebrovascular events such as death, heart attack, and stroke. This randomized, double-blind trial also evaluates if longer DAPT is as safe as the standard duration regarding bleeding and net adverse clinical events. Participants are randomly assigned to one of two groups: one group receives aspirin combined with clopidogrel for 24 months after PCI, while the other group receives aspirin plus a placebo identical to clopidogrel for 12 months. The therapy is delivered as oral medications daily. The study includes a follow-up period with assessments at 3, 6, 9, and 12 months after randomization to monitor outcomes. The trial is conducted across multiple centers with blinded evaluation of results. During the study, participants will undergo regular monitoring to assess cardiovascular events and bleeding incidents, including all-cause death, myocardial infarction, stroke, stent thrombosis, and various bleeding types classified by the Bleeding Academic Research Consortium. Data will be collected through clinical visits and evaluations at predefined intervals up to 12 months after randomization. The research team will analyze these measures to determine the efficacy and safety of extended DAPT in this high-risk population. The total study duration includes treatment and follow-up phases to ensure comprehensive outcome assessment.

Age: 18Years - 75YearsAll GendersPhase Not Applicable
1 location
A

Actively Recruiting

Healthy Volunteer

Researchers are evaluating a new 10-minute cardiovascular magnetic resonance (CMR) imaging protocol designed to improve current CMR procedures for patients with various heart conditions, including coronary artery disease, cardiomyopathies, and other cardiac diseases. The study aims to develop a standardized, contrast-free imaging method that can be applied to about 70% of cardiac patients. The goal is to assess whether this shorter protocol enhances diagnostic decision-making and reduces healthcare costs. The study involves two groups: healthy volunteers over 18 years old without significant cardiovascular or respiratory conditions, and patients over 18 years who require a clinically indicated CMR exam. The new protocol focuses on heart function and tissue characterization without using contrast agents. Researchers will compare the new 10-minute protocol to standard CMR imaging, evaluating its clinical feasibility, performance, and cost-effectiveness in different patient populations. Participants will undergo CMR scans using both the new and standard protocols. Researchers will monitor diagnostic results, scan completion rates, scan sequence times, adverse events, and cost differences between methods. Various heart tissue measurements and reproducibility between different readers and scanners will also be assessed. The study spans from 2019 to 2025, with ongoing safety monitoring during imaging sequences and a focus on improving the efficiency and quality of cardiac imaging.

Age: 18Years +All Genders
1 location
A

Actively Recruiting

Researchers are studying the quality of life in adults with hypertrophic cardiomyopathy (HCM), thoracic aortic dilatation (TAD), and radiation-induced heart disease (RIHD) who are not suitable candidates for surgery. This observational study aims to understand how these heart conditions affect patients' daily lives and well-being. The research seeks to identify risk factors linked to lower quality of life and changes over time to improve long-term management. Participants are adults diagnosed with HCM, TAD, or RIHD who are visiting the Cleveland Clinic for the first time for cardiac evaluation without prior or planned surgery. They will complete the Cardiac Quality of Life (QOL) Survey electronically at three points: baseline, 3 months, and 9 months. The survey covers five areas—global, physical, emotional, social, and spiritual health—and measures self-efficacy and resilience. During the study, participants will provide information through these surveys to help assess their health status across multiple domains. Researchers will compare results at 3 and 9 months to baseline to understand changes in quality of life and the impact of heritability and radiation-induced disease. The total participation time is about nine months, with ongoing monitoring through outpatient clinic visits and electronic questionnaires.

Age: 18Years - 70YearsAll Genders
1 location
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Actively Recruiting

Researchers are conducting a registry-based cohort study to observe patients diagnosed with acute myocardial infarction (AMI) who underwent primary percutaneous coronary intervention (PCI) at Zhongshan Hospital, Fudan University, from January 2009 through December 2028. The study aims to gather detailed clinical data and monitor patient outcomes to better understand in-hospital and long-term effects following PCI treatment for AMI. The study involves collecting comprehensive baseline information including clinical characteristics, procedural details, laboratory results, and medication use for each patient. Participants are those who have undergone primary PCI. The clinical endpoints tracked include major adverse cardiovascular and cerebrovascular events (MACCE) during hospitalization and up to two years after PCI. Secondary outcomes include bleeding events, gout flares, and myocardial perfusion impairment during the procedure. Participants will be followed closely during their hospital stay and monitored for up to two years after discharge. Researchers will assess events such as death, recurrent heart attacks, repeat revascularization, heart failure admissions, and cerebrovascular accidents. The study will also evaluate changes in cardiac function over time. Data collection and follow-up visits will help measure safety, effectiveness, and long-term outcomes of primary PCI in AMI patients.

All Genders
1 location

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