Clinical Research Directory

A Clinical Study on the Effect of Cardiopulmonary Function and Quality of Life in Patients With Acute Coronary Syndrome Complicated by Heart Failure by "Lying-Sitting-Standing" Sequential Baduanjin

This study investigates the effects of a sequential "lying-sitting-standing" Baduanjin intervention on patients with acute coronary syndrome complicated by heart failure. By evaluating cardiopulmonary function and quality of life through indicators such as echocardiography, NT-proBNP, 6MWT, NYHA classification, and SF-36, we aim to compare its efficacy with conventional treatment. The objective is to provide new insights for early cardiac rehabilitation strategies in patients with acute coronary syndrome complicated by heart failure

Optical Coherence Tomography in Acute Vessel Evaluation

The purpose is to investigate if a strategy of routine OCT based diagnosis and guidance of PCI improves clinical outcomes compared with a standard strategy of guidance by angiography in patients presenting with ACS

Assessing Chest Pain Using Point-of-Care High-Sensitivity Troponin I in the Emergency Department

The goal of this proposal is to improve the quality and value of care for patients with acute chest pain by investigating the potential impact of point-of-care (POC) high sensitivity cardiac troponin (hs-cTn) testing in the Emergency Department (ED) and exploring how best to integrate POC hs-cTnl into ED risk stratification workflows. The study hypothesizes that the Abbott i-STAT POC hs-cTnI assay will decrease time-to-result (TTR) and ED length of stay (LOS), while increasing ED revenue for patients with acute chest pain compared to a strategy of central laboratory hs-cTnI testing.

CCTA Evaluation of SGLT2i-related Pericoronary Fat Changes in Non-diabetic ACS Patients Without HF

The goal of this clinical trial is to learn if dapagliflozin, a sodium-glucose cotransporter 2 inhibitor (SGLT2i), can reduce coronary artery inflammation in people with acute coronary syndrome (ACS) who do not have diabetes or heart failure. Coronary inflammation will be measured using the fat attenuation index (FAI), a marker derived from coronary CT angiography (CCTA) that quantifies inflammation in the fat tissue surrounding heart arteries. The main questions it aims to answer are: * Does dapagliflozin lower coronary artery inflammation as measured by FAI? * Does dapagliflozin slow the progression of coronary plaques? Researchers will compare participants who take dapagliflozin 10 mg daily plus standard therapy to those who receive standard therapy alone for 6 months. Participants will: * Undergo percutaneous coronary intervention (PCI) for ACS * Have a baseline CCTA scan at 1 month after PCI, at which point they will be randomly assigned to receive dapagliflozin or standard care alone * Have a follow-up CCTA scan at 6 months after randomization * Have blood tests at the time of PCI, at randomization, and at 6 months after randomization * Receive follow-up phone calls at 3 and 6 months after randomization

For Patients With Myocardial Infarction and Multiple Vessel: Testing if Ultrasound (UFR) Can Guide All Needed Treatment in One Procedure, Avoiding a Return Hospital Visit for a Second Operation.

Brief Summary The Purpose of the Study : The purpose of this study is to find a safe and reliable "one-stop" solution for treating heart attack patients who have multiple blocked arteries. Currently, doctors face a dilemma: Testing these other blockages during the heart attack procedure is often unreliable. The most accurate method requires asking the patient to return 30 days later for a second invasive procedure, which is a significant burden. The Study's Hypothesis : We are testing a new tool called UFR, which uses ultrasound images to measure blockages. Our hypothesis (or "educated guess") is that this new UFR tool is not affected by the body's stress during a heart attack and can provide a true, reliable measurement right away. The Question the Study is Trying to Answer ： The main question this study is trying to answer is: Can the new "one-stop" UFR tool, used during the initial heart attack procedure, accurately predict which blockages are truly serious... thereby eliminating the need for patients to return for a second procedure 30 days later? Researchers will also follow 200 patients for one year, using advanced scans (like UFR, standard tests, and MRI), to better understand how the heart and arteries heal and change over time.

Registry of Coronary Disease Outcomes Revascularizing With Drug-Coated Balloons

The primary aim of this registry is to systematically collect and analyze real-world data on all patients undergoing PCI with the Protégé paclitaxel-eluting DCB to evaluate procedural outcomes, long-term efficacy, and safety across various clinical indications. This registry aims to assess the clinical effectiveness of DCB therapy across diverse patient populations, including those with stable coronary artery disease (CAD) and acute coronary syndromes (ACS), as well as various lesion subsets, encompassing (but not limited to) in-stent restenosis (ISR), de novo coronary lesions, small vessel disease, bifurcation and calcified lesions, coronary bypass graft lesions, and patients at high risk of bleeding. Additionally, the study aims to identify predictors of success, complications, and optimal treatment strategies to further refine the use of DCBs.

TIRANA-ACS: A Prospective Registry Study for the Targeted Investigation of Residual Inflammation After Non-ST/ ST Elevation Acute Coronary Syndrome

This prospective observational study aims to evaluate the prognostic significance of the neutrophil-to-lymphocyte ratio (NLR) as a predictor of mortality in patients following an episode of Acute Coronary Syndrome (ACS). Despite advancements in interventional cardiology and medical therapy, mortality remains significant in post-ACS patients, and early risk stratification is essential for optimizing outcomes. Recent studies have suggested that systemic inflammatory markers, such as NLR, are associated with adverse cardiovascular events. It is an easily obtainable and cost-effective laboratory parameter derived from a routine complete blood count. However, its value as an independent predictor of mortality post-ACS has not yet been fully established in our population. The study will include patients aged, admitted with a confirmed diagnosis of ACS (STEMI or Non-STEMI) and treated with percutaneous coronary intervention (PCI). NLR values will be measured from the first blood draw upon hospital admission, 24 and 48 hours post PCI. Patients will be followed up for up to 6 months after discharge through telephone interviews . First, primary outcomes of the study will be the association between NLR values and mortality (all cause mortality and cardiovascular mortality), MACE (MACE was defined as the composite of all-cause mortality, cardiac death, unplanned revascularization, non-fatal myocardial infarction that was attributable and not related to stent failure or unplanned revascularization not related to stent failure) within 6 months post-ACS. Secondary outcomes will include: 1. Differences in mean NLR between STEMI and NSTEMI patients. 2. Association between elevated NLR and the presence of multivessel coronary artery disease on angiography. 3. Correlation of NLR with other biomarkers, including the platelet-to-lymphocyte ratio (PLR), C-reactive protein (CRP), high-density lipoprotein (HDL) cholesterol, and maximum troponin levels (as an indicator of myocardial infarction size) This study aims to contribute to the identification of easily accessible and cost-efficient biomarkers that can aid clinicians in early risk stratification of ACS survivors. A strong correlation between high NLR values and increased post-discharge mortality would suggest that inflammation plays a key role in patient prognosis and could potentially influence post-ACS management strategies.

Prospective Observational Cohort Study on Impact of Frailty on Risk Prediction, Treatment Strategies, and Short-Term Outcomes in Patients With Acute Coronary Syndrome

we aim : * To evaluate how frailty influences acute management decisions (invasive vs conservative strategy) in ACS patients and whether it independently affects short-term outcomes. * To determine whether adding frailty assessment to existing ACS risk prediction models improves the prediction of 30-day mortality and major adverse cardiovascular events (MACE) in elderly ACS patients.

Cardiac REhabilitation COhort at the Medicine Campus DaVos to invEstigate Recovery

The RECOVER study, titled Cardiac Rehabilitation Cohort at the Medicine Campus Davos for Exploration of Recovery, is a prospective, non-interventional, monocentric cohort study conducted at the Hochgebirgsklinik Davos. The study is sponsored by Medicine Campus Davos AG and the Kühne Foundation, with an estimated start date in July 2025 and planned completion by December 2034, with the possibility of extension. The principal investigator of the study is PD Dr. David Niederseer from Hochgebirgsklinik Davos, who also represents the study. The research team includes co-investigators such as Prof. Dr. Stefan Blankenberg and Prof. Dr. Andreas Ziegler from Cardio-CARE, Medicine Campus Davos, as well as Dr. Jan Vontobel from Hochgebirgsklinik Davos. The study will enroll patients referred to Hochgebirgsklinik Davos for cardiac rehabilitation who provide informed consent. Cardiac rehabilitation is an evidence-based therapy for patients with heart disease, including those who have undergone cardiac procedures or surgeries. The primary objectives are to evaluate baseline patient characteristics, rehabilitation strategies, predictors of recovery, and clinical outcomes during and after rehabilitation. To support this, a detailed database and biobank will be established to allow for comprehensive phenotyping, extensive clinical assessments, and long-term follow-up. RECOVER seeks to gain translational insights into how patient-specific factors - such as genetics, plasma, digital and clinical biomarkers, and comorbidities - influence long-term clinical outcomes. The goal is to identify modifiable risk factors to optimize individualized therapeutic approaches in cardiac rehabilitation.

Clinical Features and Long-Term Prognosis in Young Patients With Acute Myocardial Infarction

The incidence of acute myocardial infarction (AMI) in young patients is on the rise, placing a heavy health and economic burden on individuals, families, and society. The clinical phenotype and pathophysiological mechanisms of AMI in this population exhibit significant heterogeneity compared to elderly patients, and existing risk assessment tools have limited applicability in this specific group. The core problem this study aims to address is: how to accurately identify specific risk factors in young AMI patients and build an effective risk prediction model to prevent and optimize clinical diagnosis and treatment. This study will adopt a prospective cohort design to collect multi-dimensional clinical data from young AMI patients. It will systematically analyze their clinical characteristics, risk factors, and coronary lesion status to comprehensively map the clinical, risk factor, and pathophysiological diversity of young AMI patients. Secondly, it will delve into identifying specific risk factors that influence the onset, progression, and long-term prognosis of young AMI. Thirdly, it will combine machine learning algorithms to develop a risk prediction model for young AMI, performing internal validation in the prospective cohort and external validation in the MIMIC-IV database. Simultaneously, it will explore novel biomarkers associated with disease onset and progression. The key outcomes of this study are to establish a high-quality clinical database of young AMI patients, design a risk prediction model for young AMI based on the study results, and produce high-level academic publications.

Evaluation of Remnant Cholesterol Levels and Monocyte-to-HDL-cholesterol Ratio as Predictors of Coronary Artery Disease Severity in Patients With Acute Coronary Syndrome

1. Evaluation of serum level of remnant cholesterol and monocyte/HDL ratio as predictors of severity of coronary artery disease in patients with acute coronary syndrome. 2. Evaluate predictive value of remnant cholesterol serum level and monocyte/HDL ratio to detect in-hospital worse clinical outcomes and 45 days major adverse cardiac events (MACE) after acute coronary syndrome.

Impact of CYP2C19 Genotype-guided Approach in Antiplatelet Therapy on Platelet Reactivity Index Among Coronary Artery Disease (CAD) Patients

The goal of this clinical trial is to learn if the pilot intervention of CYP2C19 genotype-guided antiplatelet therapy works to reduce the occurrence of cardiovascular events after Percutaneous Coronary Intervention (PCI) done in coronary artery disease patients. It will also learn about the comparison between clopidogrel and ticagrelor. The main questions it aims to answer are: To compare the impact of CYP2C19 genotype-guided antiplatelet therapy, universal use of clopidogrel and ticagrelor treatment on platelet reactivity. To compare the impact of CYP2C19 genotype-guided antiplatelet therapy, universal use of clopidogrel and ticagrelor treatment on the risk of major adverse cardiovascular events (MACE) among newly recruited stable CAD patients. Participants will: Take drug clopidogrel or ticagrelor, based on the random group allocation every day for 1 month. One group of patients will undergone CYP2C19 genetic test for genotype-guided antiplatelet therapy, whether clopidogrel or ticagrelor. Visit the clinic post 30 days of PCI for follow-ups and platelet function tests.