Active clinical trials for "Infarction"

The main aim of the study is to build and test a cardiac-specific coil purposely assembled in house to suit the FFC-MRI whole-body prototype and to test if it could be used for clinical cardiac scans in human subject populations.

Acute myocardial infarction (AMI) is the most common cause of cardiogenic shock (CS), and CS is the most common cause of death in patients with AMI. Percutaneous mechanical circulation is one of the most important techniques in the treatment of AMICS. Intra-aortic balloon pump (IABP) is the most commonly used mechanical circulatory assist device in clinic. However, the existing clinical evidence shows that IABP can not improve the clinical outcome of patients with AMICS. As for impella and extracorporeal membrane oxygenation (ECMO) system, there was still no difference in overall mortality compared with IABP in AMICS. Until now, IABP-shock II study is the largest randomized controlled study so far. However, this study has limitations. In a recent retrospective study, the project team investigated the use of IABP and the outcomes of more than 300 AMI cases in three provincial capitals of Northeast China in 2016. It was found that the 28 day survival rate of patients in the early use of IABP group was significantly higher than that in the late use group. The investigators speculate that IABP may significantly improve the clinical outcomes of patients with AMICS if it can be used in the earlier stage of CS (stage B). This multicenter, prospective, randomized controlled study will involve 512 participants in about 15 centers. Patients diagnosed with AMI (including STEMI and NSTEMI) complicated with shock stage B (SCAI definition criteria) received early revascularization (PCI or CABG) and standardized drug treatment according to the current guidelines before meeting the study inclusion criteria. After reviewing the inclusion criteria, participants were randomized to two groups (IABP group and control group) in a ratio of 1:1. The investigators speculated that IABP could significantly improve the clinical outcomes of patients with AMICS if it could be used in the earlier stage of CS (stage B). At present, there is no clinical study on the use of IABP in AMICS (stage B). It is worth carrying out the corresponding clinical research, in order to study the real role of IABP in patients with AMICS and explore the treatment strategy of AMICS in line with China's national conditions.

This is a single-center, prospective, observational controlled cohort study designed to describe the role of WNT/B-catenin signaling and adenosine system after an acute myocardial infarction, correlating it with clinical markers of fibrosis/remodeling (primary objective). The modulation of the aforementioned molecular patterns will also be evaluated in light of the type of P2Y12 inhibitor implemented (ticagrelor or prasugrel) to identify variations in response (secondary objective).

The study design is a prospective, multicenter, observational, single-arm post-approval study using data collected in the National Cardiovascular Data Registry (NCDR®) CathPCI Registry®.

The proportion of noncardiac surgeries performed as same-day surgery is increasing worldwide, with more complex surgeries being performed on higher risk patients in the outpatient setting. Little is known on the risk factors, incidence and prognosis of patients undergoing same-day noncardiac surgery. The main objective of this study is to inform on the incidence and risk factors of cardiovascular and other adverse events after same-day surgery and to develop risk prediction tools to better inform on the risk and selection of patients undergoing same-day surgery.

This is a retrospective, multi-center, real-world study. The researchers plan to include 10,000 cases of ischemic stroke patients using butylphthalide and 10,000 cases of ischemic stroke patients using Urinary Kallidinogenase. The main purpose is to analyze the effectiveness and safety of butylphthalide and establish the drug risk assessment management plan.

Recently, more and more studies have confirmed that intestinal flora is closely related to the occurrence and development of cardiovascular diseases.Bile acids (BAS), short chain fatty acids (SCFA) and trimethylamine oxide (TMAO), the main metabolites of intestinal flora, are the key mediators of the interaction between gut and host. We aim to explore the association of BAs and SCFA with cardiac function in patients with AMI.

This study is a quasi-experimental between-group design. Using a prospective two-arm controlled exploratory study, data will be collected on an initial assessment of the effects of a specific neurological sample after thrombotic infarction (PCA infarction) who lost the ability to dream due to the infarction (experimental group) compared to a specific neurological sample after thrombotic infarction (PCA infarction) without loss of the ability to dream (comparison group) in terms of subjective and objective sleep quality and memory consolidation. Besides the importance to further elucidate the role of dreaming for sleep architecture and memory consolidation, the results of the evaluation are of great clinical relevance in a further scientific investigation regarding the treatment of a specifically neurological sample with acute thrombotic infarction.

Despite a decrease in voltage amplitude in post-infarction scar areas, greater voltage amplitudes are sometimes observed at the time of local extrasystoles mechanically induced by catheters. However, no study has investigated whether these electrical changes are associated with mechanical changes in local contractility. However, the voltage is closely correlated to the local contractile function as evidenced by the use of the NOGA system.

This study aims to identify genetic causes of adverse events after cardiac surgery, such as atrial fibrillation, myocardial infarction, renal dysfunction and heart failure. Patients undergoing heart surgery at Brigham and Women's Hospital and Texas Heart Institute are eligible to participate.