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The goal of this research study is to understand if a blood test in people who have had heart transplants can detect and predict the following: - Blockages in the small blood vessels of the heart. - Whether small blockages can turn into more severe blockages in the future. Participants will undergo blood draws once every 3 months in the first year of the study (4 blood draws total, taking 15 minutes each) and their medical records will be reviewed for 3 years after the date they are enrolled in the study.
VT ablation is a frequently performed intervention in patients with symptomatic ventricular tachycardia, electrical storm due to monomorphic VT and appropriate ICD shocks, primarily aiming at reducing the burden of complaints, and ICD shocks. The recommendations for its use were described in the ESC guideline for ventricular arrhythmias and the prevention of sudden cardiac death. To visualize the arrhythmogenic substrate leading to ventricular tachycardia complex mapping techniques are currently used in clinical routine, including conventional Point-by-Point mapping or Multielectrode Mapping. The latter is associated with shorter Mapping and overall procedure times, while maintaining the same primary endpoint of the procedure itself. The aim of this trial is to validate, whether the reduction of mapping and procedure time is associated with a comparable long-term outcome compared with conventional Point-by-Point mapping.
Coronary heart disease (CHD), the major group of cardiovascular disorders, is the leading cause of cardiac-associated mortality, causing >9 million death in 2016. American Heart Association (AHA) and the American College of Cardiology Foundation (ACCF) recognized that lifestyle modification including physical activity is the class one-level recommendation for secondary prevention and risk reduction therapy for patients with CHD. The assessment of physical activity and confidence in performing exercise for patients with CHD will help healthcare professionals to develop and implement the appropriate intervention to enhance patients' confidence in performing exercise and physical activity to promote and maintain their health. With the increasing morbidity and mortality from CHD, especially in low and middle-income countries, secondary prevention including exercise-based cardiac rehabilitation (CR) plays an important role to improve the prognosis of CHD patients. High prevalence of physical inactivity, unhealthy dietary practices, poor control of blood glucose, blood pressure (BP), blood lipid, and body weight (BW) was found among CHD patients in the world as well as in Sri Lanka. Therefore, it is important to design and implement an appropriate intervention to improve the physical activity level, exercise self-efficacy, and cardiovascular risk factors in CHD patients in Sri Lanka. This study aims to develop and examine a culturally specific motivated, action-based intervention for improving physical activity level, exercise self-efficacy, and cardiovascular risk factors of CHD patients in Sri Lanka. The participants will be patients who admitted to the coronary care unit (CCU) and medical wards of the Teaching Hospital Batticaloa, Sri Lanka with CHD for the first time confirmed by electrocardiogram with aged 18 years or above, able to reads and speak Tamil, able to attend clinic follow-up, obtain a medical clearance from a cardiologist to perform the exercise and, able to understand and give informed consent. The medical records of the CHD patients will be reviewed to screen for their eligibility. In addition, the cardiologist of the participants will be consulted for their suitability to perform the exercise of the intervention. The purpose of the study, the data collection procedures, the potential risk and benefits, the maintenance of confidentiality, and the voluntary basis of participation will be clearly explained to the participants, and informed written consent will be obtained before data collection. Ethical approval was obtained from The Joint Chinese University of Hong Kong - New Territories East Cluster Clinical Research Ethics Committee and Ethics Review Committee, Faculty of Health Care-sciences, Eastern University, Sri Lanka. The Statistical Package for Social Science version 22.0 software (SPSS 22.0) will be used to analyze the data and the p-value less than 0.5 will be considered as significant. This study will provide evidence on the effectiveness of a motivated, action-based intervention on the physical activity level, cardiovascular risk factors, and exercise self-efficacy of CHD patients in Sri Lanka. Findings from this study could be useful to promote healthy lifestyle behaviors in CHD patients in a low-resource setting. Furthermore, this study will provide information on which level this intervention could be applied and possible constraints that hinder the outcomes of the results.
Recent guidelines for the management of ST-elevation myocardial infarction (STEMI) recommend against the routine use of thrombus aspiration (TA) during primary percutaneous coronary intervention (PPCI) (Class III indication). Yet, so far, there is limited data regarding its role STEMI patients with heavy thrombus burden (TB). The aim of this trial is to evaluate the effects of manual TA and PCI in comparison to conventional PCI alone in a real-life clinical trial among heavy TB STEMI patients undergoing PPCI.
Use of intracoronary acetylcholine to investigate endothelial function in coronary arteries treated with either drug coated balloon angioplasty of drug eluting stents.
Use of novel radio-pharmaceutical Rhodamine 6G to determine myocardial blood flow
The primary purpose of this multi-center study is to collect and study the acoustic and electrical signals created by the heart during the cardiac cycle as a result of stenosis or plaque associated with coronary artery disease (CAD).
In patients after myocardial infarction (MI) (heart attacks) and treated with percutaneous coronary intervention (PCI), the current standard is dual antiplatelet therapy (DAPT), with aspirin and a P2Y12 receptor inhibitor, for 1 year of treatment. At 1 year, there are several options including: i) Ongoing DAPT (with aspirin and ticagrelor), ii) Selective treatment use of a P2Y12 inhibitor based on risk profiles. This study is a pilot vanguard study to evaluate several strategies for choosing anti-platelet regimen among patients post MI and PCI at 1 year.
The primary objective of this study is to assess the safety and efficacy of the new-generation zotarolimus-eluting stent Resolute Onyx in the treatment of unprotected left main coronary artery disease (ULMCAD), both isolated or in association with two- or three-vessel coronary artery disease.
This study aimed to compare the efficacy and safety of P2Y12 inhibitor monotherapy versus extended dual antiplatelet therapy (DAPT) following 12-month of DAPT in patients undergoing percutaneous coronary intervention (PCI) with bioresorbable scaffold (BRS)