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NCT05163392
The investigators propose to conduct a prospective randomized trail (RCT) of a driveline management protocol. The study will be initiated at UCSF from January 1st 2022 to December 31st 2022 as a pilot to be extended to other sites with the ultimate goal to develop a multi-center RCT. The driveline dressing protocol studied will include a silver-based dressing barrier as well as a dressing change protocol and material designed to reduce the risk of driveline dressing induced dermatitis and allergies. Assessment will include DLI rates, DLI speciation, dermatitis rate, comfort, ease of use, compliance and cost
NCT06823583
There are a variety of educational documents available to help in a participant's decision for VAD implant, however there is little information available to potential participants to help understand areas of satisfaction and concern following a VAD implant as various time points. The investigators want to provide better patient care through increased education and awareness beyond surgical outcomes and contribute to patient understanding of "what to expect" following a VAD implant. The investigators have created an anticipatory guidance (AG) tool based upon previous responses recorded in a local program's database, from the Quality of Life with a Left Ventricular Assist Device (QoLVAD) questionnaire. This questionnaire has five different domains (physical, social, emotional, cognitive thinking and spiritual/well-being). Investigators have previously analyzed responses to determine common areas of satisfaction and concern at 3-, 6-, 12- and 24-months post-VAD implant to better understand quality of life when living with a VAD. Investigators have had both VAD clinicians and VAD patients initially evaluate the tool to determine accuracy and effectiveness of the anticipatory guidance (AG) tool.
NCT07053618
Mechanical circulatory support (MCS) is a life-sustaining therapy first introduced in the 1950s. After six decades of development, it now serves as a critical bridge therapy for patients with acute cardiac events and end-stage heart failure. Percutaneous mechanical circulatory support (pMCS), a key MCS modality, has advanced rapidly in recent years. In China, pMCS adoption has accelerated significantly, evidenced by year-over-year growth in both specialized centers and clinical cases, alongside continuous technological refinement. Common pMCS devices include: Intra-Aortic Balloon Pump (IABP), Axial flow pump systems (e.g., Impella®), Extracorporeal Membrane Oxygenation (ECMO). However, no randomized study has compared Impella with VA-ECMO in CHIP patients. The aim of the study is to evaluate the effectiveness and safety of interventional left ventricular assist system (VADLINK) compared to the VA-ECMO in providing circulatory support for complicated and high-risk patient with indications for PCI.
NCT07081035
The TARGET trial is a prospective, single-center, randomized, open-label, active-controlled inequality clinical trial designed to evaluate the safety and efficacy of low-intensity anticoagulation therapy (target INR 1.5-2.0) compared to standard anticoagulation therapy (target INR 2.0-3.0) in patients receiving a HeartMate 3 Left Ventricular Assist Device (LVAD). Despite the demonstrated effectiveness of HeartMate 3 LVAD in reducing thromboembolic complications, standard anticoagulation treatment guidelines recommend maintaining an INR between 2.0 and 3.0, which can lead to a substantial risk of bleeding, especially gastrointestinal (GI) bleeding. Preliminary studies, such as MAGENTUM 1, have indicated potential safety and reduced bleeding events at lower INR targets (1.5-1.9). However, robust evidence through randomized controlled trials is still required. The primary objective of the TARGET trial is to determine if low-intensity anticoagulation therapy significantly reduces the incidence of major bleeding and thrombotic events compared to standard therapy within 6 months post-randomization. Secondary objectives include evaluating the safety and hematological complications associated with low-intensity anticoagulation. The study will enroll adult patients aged ≥19 years who have been stably maintained on standard INR therapy (2.0-3.0) for at least 30 days post-HeartMate 3 LVAD implantation. Participants will be randomized in a 1:1 ratio into two groups: the low-intensity INR group (target INR 1.5-2.0) and the standard INR group (target INR 2.0-3.0). Randomization will be stratified based on the presence of atrial fibrillation. The primary endpoint is a composite of hemocompatibility-related events, including major bleeding, stroke, and pump thrombosis, occurring within 6 months after randomization, as defined by INTERMACS criteria. Secondary endpoints encompass clinical outcomes such as all-cause mortality, cardiac death, LVAD-related thromboembolic events, stroke, systemic embolism, myocardial infarction, major bleeding incidents, and the rate and number of LVAD-related hospital readmissions and reoperations. Additionally, INR management outcomes, including time in therapeutic range (TTR) and frequency of warfarin dose adjustments, will be assessed. The trial duration is approximately 36 months, including a 24-month enrollment period, a 6-month follow-up period for each participant, and time allocated for data analysis and reporting. Safety will be rigorously monitored by a Data Safety Monitoring Board (DSMB) and Clinical Events Committee (CEC), ensuring participant safety and data integrity throughout the study. This trial aims to provide critical insights that could optimize anticoagulation strategies in LVAD patients, potentially improving patient safety by reducing bleeding risks without compromising thrombotic event protection.
NCT06556485
CASTLE-VT is a randomized evaluation of prophylactic ablative treatment of arrhythmogenic ventricular scar in patients referred for HTx evaluation and diagnosed with ICM. Ablation will be performed with the use of a substrate-based approach in which the myocardial scar is mapped and ablated while the heart remains predominantly in sinus rhythm. The primary end point is the composite of all-cause mortality, worsening of HF requiring prioritized transplantation or LVAD implantation. The main secondary study end points are all-cause mortality, cardiovascular mortality, incidence of implantable cardioverter-defibrillator (ICD) therapy, hospitalizations, Quality of life, time to first ICD therapy, number of device-detected ventricular tachycardia/ventricular fibrillation episodes, LV function, and exercise tolerance. CASTLE-VT will randomize 160 patients with a follow up period of 2 years.
NCT04974684
A prospective, single-center, randomized controlled trial of the feasibility and safety of apixaban in HeartMate 3 patients.
NCT06063811
The CHANNELED-Registry is a multicenter retrospective study to (1) systematically assess the mechanism and origin of ventricular tachycardia in patients with end-stage heart failure carrying an left ventricular assist device (LVAD) and (2) to evaluate procedural parameters and outcome of ventricular tachycardia ablation in this special subset of patients.
NCT05916612
This is an exploratory project with the purpose to describe the responses of the right ventricle (RV) and gas exchange during exercise in patients scheduled to undergo left ventricular assist device (LVAD) implant. Such information might be used to predict the likelihood of RV failure after LVAD implant. Additionally, although patients that undergo LVAD implantation have improved quality of life and survival, their exercise tolerance (although improved) remains markedly reduced compared to healthy subjects. No studies have used cardiopulmonary stress testing and echocardiography to assess cardiac function and gas exchange with LVAD implantation to determine potential factors responsible for their limited function. The aims of this study are as follows: 1. To assess the impact of right ventricle (RV) dysfunction on functional capacity before and after left ventricular assist device (LVAD) implant 2. To determine if the combined use of preoperative clinical, CPX and echo data can assist in predicting who will meet target improvements in functional capacity after LVAD implant.
NCT03843021
Annually, more than 250,000 patients in the U.S. with end-stage heart failure stand to benefit from ventricular assist device (VAD) therapy. 60% of patients develop a healthcare-associated infection (HAI) within 90-days of implantation. The investigators long term goal is to develop and subsequently promote wide-scale adoption of evidence-based HAI prevention practices following durable VAD implantation. This will be done by addressing the following aims: Aim 1. Identify determinants of center-level variability in HAI rates. Aim 2. Develop a comprehensive understanding of barriers and facilitators for achieving low center HAI rates. Aim 3. Develop, iteratively enhance, and disseminate a best practices toolkit for preventing HAIs that accommodates various center contexts. The investigators will use a focused survey of U.S. VAD centers to identify determinants of center variation in 90-day HAI rates: * Process Factors (e.g., intranasal mupirocin), * Provider Factors (e.g., surgeon technique), * Device Factors (e.g., centrifugal vs. axial), * Center Factors (e.g., provider communication). Understanding the barriers and facilitators within individual centers for maximizing adoption of prevention measures would serve as the foundation for targeted improvement strategies. Without this knowledge, evidence-based, action-oriented recommendations will have limited local adoption and ultimately effectiveness in preventing HAIs after VAD implantation.
NCT04526964
The number of patients suffering from end-stage heart disease challenges healthcare services in the western world, where an estimated 1-2% of the population suffer from this chronic condition. Ventricular assist device (VAD) implantations have become a common therapeutic strategy for those affected. Live with a VAD, however, is far from normal and does expose patients to multiple challenges and the need to adjust to a complex self-management. Inadequate self-management can lead to serious complications, specifically neuro-cognitive events, bleeding, and exit-site related wound infections may impair the outcome following the VAD implantation procedure. Based on systematized literature review and a previous prevalence assessment study (ClinicalTrials.gov Identifier: NCT04234230), a modular evidence-based curriculum has been developed by a multiprofessional group of experts. This curriculum aims at improving knowledge, skills, and competencies for those affected to empower VAD patients to better self-manage their everyday life with the VAD, and to regain quality of life. This study focuses on a multi-center implementation and evaluation of the curriculum using a fully powered randomized-controlled study (RCT) design. This RCT will be conducted at four established cardiac centers throughout Germany. Participants will be assigned to either intervention or control using a 1: 1 randomization scheme. Block-randomization will be performed by a professional from the study coordinating center not being involved into the clinical care for patients. At the participating sites, the group assignment is non-blinded to the professionals involved in order to enable the intervention so be carried out adequately. Participants in the control group (CGr) receive the standard follow-up procedures (care as usual). Participants in the intervention group (IGr) receive self-management support and skills training based on the modular self-management curriculum post-implant, and during regular outpatient follow-up. The intervention lasts for 3 months followed by a 9-month follow-up per participant. Based on the power calculations the inclusion of 142 patients is anticipated.
NCT01477528
The purpose of this observational study is to obtain multi-center data on HeartMate II (HMII) patients managed with reduced anticoagulation or anti-platelet regimes, and the incidence of thrombotic and bleeding adverse events associated with these regimes.
NCT05063006
To evaluate the concept of dynamic pump speed optimization based on the echocardiographic assessment of aortic valve opening during cardiopulmonary exercise test.
NCT04377854
A biobank has been created to investigate the prognostic value of biomarkers (mainly BNP) in patients implanted with durable mechanical assist devices comparing patients with advanced HF supported by MCS with those who are transplanted and those who remain on optimal medical therapy. Patients will be followed up for 25 years after inclusion.
NCT04234230
The number of patients with end-stage heart disease requiring the implantation of ventricular assist devices (VAD) is steadily increasing. Living with a VAD exposes the patients to multiple challenges and the need to learn complex self-management skills. Inadequate self-management can lead to serious complications (e.g. bleeding or wound infections) and impair the psychosocial outcome. This study aims to provide multi-centered actual analysis of self-management capabilities as well as analyzing moderating predictors in VAD patients through standardized prevalence assessment. Using a cross-sectional design, this prevalence study will be conducted at four established German heartcenters (Freiburg, Berlin, Bad Oeynhausen, Leipzig). VAD-patients are questioned about their self-management skills using standardized Patient-reported outcome (PRO) measures. Secondary PRO measures include health-related quality of life, symptoms of anxiety and depression, post-traumatic stress symptoms, social support, and changed body-image. Relevant complications (bleeding, wound infections, thromboembolic neurological events) are taken from the patient records. Based on a conservative sample size estimation inclusion of 450 patients is envisioned. The expected results may contribute to an improved assessment of the current situation in terms of self-management skills and needs for curricular training concepts and psychosocial concomitant therapy. Long-term, the study results contribute to improve the health care for long-term VAD patients.
NCT04423562
Pooling of earlier VO2-studies conducted at the dept. of cardiology, Rigshospitalet, Denmark, and all LVAD centres of the World that wish to participate. The purpose is to investigate the prognostic value of VO2 in recipients of durable LVADs using data from studies already conducted.
NCT02067455
Heart failure is a public health problem, responsible for 150.000 admissions, 32.000 deaths, 1% of public health expenditure each year in France. Heart transplantation remains the standard of care in patients for which medical therapy is not sufficient. But heart transplantation is a limited resource, as a result of donor shortages. It is therefore possible to consider mechanical circulatory support for patients awaiting heart transplantation or for those who are not suitable for transplantation. Left Ventricular Assist Devices (LVAD) are portable pumps which help the left side of the heart to provide appropriate "cardiac" output. in this type of device, right heart is not assisted and must work on its own, LVADs are thus implanted in patients whose right ventricular function is normal. The aim of the REVADE study is to assess right ventricular echocardiographic parameters in this population, especially on physical exercise, for a better understanding of right ventricular adaptation to this long-term modified pressure pattern.