View clinical trials related to Myocardial Infarction.
Filter by:After an episode of acute ischemic syndrome, patients with concomitant peripheral arterial disease have a worse short- and long-term prognosis compared to patients with isolated coronary disease, but the mechanisms responsible are poorly understood. In this population, the presence of high platelet aggregability despite the use of antiplatelet drugs is related to a greater risk of future complications, including heart attack and death from all causes. Thus, the main objective of the present project is to evaluate the role of platelet aggregability, analyzed by optical aggregometry using the AggRAM® equipment, in patients with a history of previous acute myocardial infarction with and without the presence of peripheral arterial disease. Among the secondary objectives, it is worth analyzing platelet aggregability, in both groups, using the Plateletworks® method. This is a case-control study, with groups differentiated by the presence or absence of peripheral arterial disease, matched by sex and age. It is expected that, in the end, relevant aspects related to platelet aggregation will be better characterized in this high cardiovascular risk population, with a likely impact on new therapeutic strategies that can positively influence the morbidity and mortality of these patients.
Patients with acute myocardial infarction were enrolled retrospectively. The fractional flow reserve (AccuFFR) and microcirculatory resistance index (AccuIMR) based on coronary angiography were analyzed, and the relationship between FFR and IMR and the prognosis of patients with acute myocardial infarction was analyzed
Using national health insurance service database, current study aim to evaluate the risk and prognosis of acute myocardial infarction in cancer patients and to find the optimal treatment strategy for acute myocardial infarction that can improve long-term prognosis.
To determine the clinical effectiveness of hypothermia treatment in patients with out-of-hospital cardiac arrest complicating acute myocardial infarction.
In a prospective observational cohort study (n = 100), the investigators aim to assess the correlation between cardiac biomarkers, advanced echocardiography and cystic fibrosis genotype and severity and determine whether these are prognostic markers of heart disease in patients suffering from cystic fibrosis (CF).
Acute myocardial infarction (AMI) is one of the most important diseases threatening human life. The existing MI prognosis prediction scales mostly predict the incidence of death, recurrent MI and heart failure through 6-8 clinical text indicators, and the data are collected relatively simply. Myocardial remodeling, as an adverse pathological change that can start and continue to progress in the early stage after myocardial infarction, is the main pathological mechanism of heart failure and death. However, there is no quantitative early-warning model of myocardial remodeling, and the clinical guidance of early intervention is lacking. Our previous study found that cardiac magnetic resonance imaging can accurately quantify the necrotic area and recoverable myocardium in the edematous myocardium after myocardial infarction. In this study, machine learning algorithm, variable convolution network (DCN) and capsule network (capsnet) are used to build a new neural network architecture. Structural feature extraction of multi-modal clinical image data such as MRI and ultrasound is realized. Combined with the established database of 3000 patients with myocardial infarction, the multimodal feature matrix will be constructed, and a variety of classifiers such as support vector machine (SVM) and random forest (RF) will be used for quantitative prediction of myocardial remodeling, and the effects of different classifiers were evaluated. It is expected that this project will establish a quantitative early warning model of myocardial remodeling after acute myocardial infarction in line with the characteristics of Chinese people. The same type of data outside the database will be used for verification to establish an efficient and stable early warning model.
This study was performed as a randomized controlled a study with a pre test-post test design, aimed to determine affect of reflexology masagge to the pain, anxiety and comfort level on the patients that are percutaneous coronary intervention.
The present study focusses on the effects of the diagnostic testing environment on psychological wellbeing, cardiac symptoms and patient satisfaction during cardiac stress testing (CST) in patients who are referred to the Institute Verbeeten for SPECT myocardial perfusion imaging (MPI). The diagnostic procedure consists of two days of MPI using SPECT: day 1 of MPI involves obtaining a resting image and day 2 (typically 3 or 4 days later) a stress MPI following exercise or pharmacological challenge with adenosine. The diagnostic procedure can result in undesirable effects on psychological wellbeing, such as anxiety or psychological distress. These effects can be related to anticipatory anxiety (day 1 of MPI) and/or responses to the exercise or adenosine stress testing (day 2 of MPI). The present investigation aims to develop methods to further improve patients' experiences and wellbeing during the diagnostic process for the presence of inducible myocardial ischemia. This research project will compare four groups to establish the effect of providing information and supportive coaching: (1) care as usual, (2) information support using video materials, (3) supportive coaching during the diagnostic testing procedure, and (4) a combination of both interventions. The video-based information and supportive coaching are aimed at reducing feelings of anxiety, uncertainty and psychological distress during the diagnostic testing procedure. In addition to standardized self-report questionnaires, this project will utilize facial expression analysis software to measure emotional states during CST as well as 24- hour ambulatory assessments to evaluate autonomic nervous system activity, cardiac symptoms and psychological wellbeing during everyday life activities in the period between the two days of MPI. It is hypothesized that additional video-based information and supportive coaching during the diagnostic process for the inducibility of myocardial ischemia will result in improved psychological wellbeing (reduced acute negative emotions; primary outcome) as well as less cardiac and other physical symptoms and improved patient satisfaction (secondary outcomes) of the diagnostic clinic visit. The innovative aspect of the present proposal is its focus on emotional expression during evaluation for myocardial ischemia using FaceReader software in combination with self-reported momentary mood and perceived stress assessments. Knowledge about the interaction between psychological wellbeing and cardiac function obtained in this project will strengthen the development of future interventions aimed to reduce symptom burden and psychological distress in patients undergoing diagnostic evaluations for heart disease.
The Mindray High Sensitivity Troponin-I Measurement System is an in vitro diagnostic test for the quantitative determination of high sensitivity cardiac troponin I (hs-cTnI) in human serum or plasma. The Mindray High Sensitivity Troponin-I Measurement System is to be used as an aid in the diagnosis and rule out of acute myocardial infarction (AMI).
The goal of this clustered, diagnostic randomized controlled trial is to study a clinical decision rule including a high-sensitive troponin I point of care test in patients with chest pain in primary care. The main questions it aims to answer are: 1. Can unnecessary referrals to secondary care be reduced by the use of a clinical deci-sion rule in patients with new onset, non-traumatic chest pain in primary care? Compared to current daily practice. 2. What is the accuracy (sensitivity, negative prediction value) of the clinical decision rule for excluding ACS and MACE at 6 weeks and 6 months?