View clinical trials related to Infarction.
Filter by:Perforating artery territorial infarction (PAI) refers to a single ischaemic lesion <20 mm in a single perforating arterial territory and branch atheromatous disease (BAD) is a important etiological factor. BAD related infarction accounts for 10%-15% ischemic cerebral infarction and is closely related to early neurological deterioration (END). Among patients with BAD, dual antiplatelet (clopidogrel plus aspirin) did not significantly reduce the risk of recurrent stroke. The primary purpose of this study is to assess the efficacy and safety of tirofiban combined with aspirin versus placebo combined with aspirin in reducing the risk of recurrence and progression of stroke at 90 days in patients with acute penetrating artery territory infarction.
The OPERA-MI trial evaluates the effect of i.v. ferric carboxymaltose compared to the effect of oral iron, on left ventricular systolic function.
The Kitasato PCI Registry is a single-center, observational, prospective study. This study aims to investigate the impact of characteristics in clinical manifestation, patients' background, procedure of percutaneous coronary intervention (PCI), and pre/post PCI culprit/nonculprit lesion observed by intra-coronary imaging modality on clinical outcomes.
Heart attacks are caused by the sudden formation of a clot inside a diseased coronary artery which reduces blood flow beyond the blockage site. During conventional treatment of the blockage with what is known as a stent; a stainless steel tub that keeps the artery open, the clot that has formed is disrupted and is pushed further down leading to damage in smaller blood vessels supplying the heart muscle. This additional damage can lead to long-term heart muscle damage influencing recovery and wellbeing. The original concept that was tested to prevent this 'clot shower' was that of a suction device to withdraw the clot before stenting. However, this approach has not translated to patient benefit. Amongst the reasons put forward for the inefficacy of the suction device was that it does not remove the entire clot as it does not interact with it. A new device that physically interacts with the clot and traps it before pulling it out - the stent retriever - is now routinely used in stroke therapy to remove clots in the arteries supplying the brain. This device has been successfully used as a last resort to remove clots in a small number of heart attacks. The investigators hypothesize that stent retriever therapy will be more effective in clot removal than the current standard of care; suction or stenting. To study this, the investigators propose the RETRIEVE-AMI randomised controlled trial.
This is a multi-center, prospective, randomized, controlled study. The patients with STEMI who were to undergo PPCI were divided into PCSK9 inhibitor group (n=80) and conventional treatment group (n=80) using the interactive web response system (IWRS), at a 1:1 ratio. In the PCSK9 inhibitor group, a dose of PCSK9 inhibitor (alirocumab) was injected subcutaneously immediately after PPCI and was administered every two weeks thereafter for 3 months; the control group received conventional treatment. Cardiac Magnetic Resonance Imaging (MRI) were used to measure myocardial salvage index at 1 week after operation as primary endpoints. Eject fraction at 6 months after operation will also be measured by MRI as secondary endpoints. Serum TnI/T，CKMB levels were detected q8h for three times and and LDL-C levels were detected at 1 month, 3 months and 6 months after operation. Blood inflammation indicators were detected before and 1 week after the operation, and 6 months after the operation.
Introduction: Secondary prevention after acute myocardial infarction may include cardiac rehabilitation and lifestyle changes. Cardiac rehabilitation has mainly taken place in hospitals without coordination with primary healthcare. Motivational interviews have been shown to be effective as a means for change in patients after acute myocardial infarction. The objective of this study is to evaluate the effectiveness of a cardiac rehabilitation program with motivational interviews in patients discharged from hospital after acute myocardial infarction. Methods: Randomized clinical non-pharmacological trial. A minimum sample of 284 participants requiring cardiac rehabilitation after acute myocardial infarction in six primary healthcare centers. Participants will be randomized to cardiac rehabilitation with motivational interviews or normal standard of care. All secondary results will be evaluated at 1,3 and 6 months.
To compare clinical outcomes of myocardial infarction with non-obstructive coronary arteries (MINOCA) according to the coronary microvascular dysfunction (CMD), evaluated by optical coherence tomography (OCT), invasive and non-invasive coronary physiologic assessment.
Aim: To develop and field test an Integrative Cardiac Rehabilitation Employing Smartphone Technology (I-CREST) system, and evaluate its effects on CR utilization, cardiac self-efficacy, functional capacity, health-related quality of life (HRQoL), anxiety, depression, medication adherence, cardiac risk factor control and clinical outcomes among post-myocardial patients in Singapore. Background: Centre-based cardiac rehabilitation (CBCR) participation rates among eligible patients remain low at 10-30% worldwide and less than 10% in Singapore, reportedly due to long-standing challenges surrounding accessibility, conflicting commitments, low socioeconomic status, and costs. A recent challenge is the COVID-19 pandemic, that resulted in the partial or complete closures of CBCR programmes Alternative strategies to deliver cardiac rehabilitation using novel technologies are needed to increase participation rates and improve health outcomes. Design: A single-blinded two-arm randomised controlled trial (RCT) will be adopted. Methodology: The is a two-phase study. Phase one involves the development and field-testing of the I-CREST system. The I-CREST system comprises of a smartphone application, a wearable heart rate monitor and a web-portal. Phase two is a single-blinded two-arm RCT with repeated measures. 124 participants will be recruited from the National University Hospital in Singapore and will be randomly allocated to intervention or control group. Participants in the intervention group will receive the 6-week I-CREST intervention - including the newly developed I-CREST system, one face-to-face training session, and weekly telephone calls. The participants in the control group will receive the 4-week traditional CBCR. Data will be collected at baseline, at 6 weeks (after completion of the CR programme), at 3months and at 6months from baseline. Sociodemographic and clinical data will also be collected. A cost-effectiveness analysis will also be performed to evaluate the feasibility of I-CREST compared to the CBCR platform. To assess the participants' experiences of the I-CREST system, a process evaluation will be undertaken at the conclusion of the study. Significance. This study will generate insights into the suitability and effectiveness of I-CREST as an alternative to traditional CBCR outpatient services.
The study will use 18F-PBR06/uExplorer to study the activation of macrophages and systemic perfusion in patients with ST-segment elevation myocardial infarction (STEMI) or stable angina (SA). Participants will receive the total-body PET/CT scan on the seventh day (Day 7, D7) and D180 of enrolment.
This protocol describes a retrospective, single-center study intended to test the impact of optical coherence tomography(OCT) on long term clincical outcomes in patients with acute myocardial infarction(AMI). All the patients will be followed by intracoronary OCT at medium follow-up of 3 years.