View clinical trials related to Myocardial Ischemia.
Filter by:The aim of the study is to evaluate the influence of physical training and respiratory rehabilitation performed by patients at home on quality of life, symptoms, physical endurance, force of respiratory and skeletal muscles and body mass composition in patients with pulmonary arterial hypertension (PAH) or left ventricular heart failure with reduced ejection fraction - HFREF), or ischemic heart disease and evaluation the number of stem cells, natural lymphoid cells and distribution of subpopulations of monocytes (including proangiogenic monocytes) in examined persons and evaluation of theirs eventual influence of the course of disease.
Cardiovascular disease (CVD) occurs less frequently in women than in juvenile men.Frequently the estrogen deficiency associated with the menopausal state affects cardiovascular outcomes. In fact, in the post-menopausal state, even younger women may experience an increase in the rate of ischemic heart disease (IHD). On the other hand, CVD may also occur in premenopausal young women, due to not well known and/or not clearly investigated mechanisms. In addition, pre-menopausal women with IHD show atypical symptoms and more frequently myocardial infarction vs. angina pectoris. In detail, in these patients IHD is frequently due to mono-vessel coronary heart disease, and to the presence of cardiovascular risk factors such as hypertension, hyperlipidemia and type 2 diabetes. So, it is clear that all these pro-atherogenic risk factors which lead to IHD in women, are significantly lower in the pre-menopausal vs. post-menopausal patients. However, the causes leading to IHD and acute coronary events in pre-menopausal women remain poorly understood and poorly investigated, and these factors might be different from the traditional coronary risk factors evident in the general population. In this context, recently some authors have shown that subcutaneous abdominal fat affects cardiovascular performance at 1 year of follow-up in patients with normoglycemia vs. pre-diabetic. Therefore, here authors can hypothesize that in a population of female subjects, the fat tissue present in the mammary gland and the different degrees of mammary adipocyte infiltration can somehow invalidate the number of cardiovascular events in women of childbearing age. In detail, the different distribution of adipose tissue in the mammary gland can influence the density of the breast, as studied by mammographic examination, which is used to divide breast density into 4 different categories: - Category A: the breast is represented by 80% of adipose tissue and less than 20% by fibro-glandular tissue. - Category B: the breast is represented by adipose tissue in the range of 50-75% and for the rest by fibro-glandular tissue. - Category C: the breast is represented by fatty tissuein the range 25-50% and the rest is from fibro-glandular tissue - Category D: the breast is represented by almost entirely fibro-glandular tissue. Therefore, in the present study authors correlated the 4 different breast categories with CVD and 10-year follow-up IHD in women of child-bearing age. In fact, according to authors' opinion, a breast with higher fat density (category A) might influence the number of adverse cardiovascular events at 10-year follow-up in asymptomatic women. Thus, pre-menopausal women with breast tissue in category A ("fatty breast") as compared to women with prevalence of fibro-glandular tissue ("non-fatty breast") may have a higher frequency of adverse cardiac ischemic events at 10 years of follow-up. On the other hand, the molecular pathways implied in worse CVD in these cohorts of women are not fully investigated. Furthermore, the authors aimed to investigate the expression of inflammatory cytokines and sodium glucose transporter 2 (SGLT2) protein expression, as markers of over-inflammation, at level of breast gland in these cohorts of women. Thus, these markers were analyzed in the breast fat tissue excissed from the fatty vs. non-fatty breast women.
Patients with diabetes mellitus (DM) and chronic kidney disease (CKD) are at increased risk of atherothrombotic events. Clopidogrel is the most widely used platelet P2Y12 receptor inhibitor in patients with coronary artery disease (CAD). However, despite its benefits, many patients still experience recurrent atherothrombotic events. The proposed study will test the central hypothesis that in DM patients the presence of CKD reduces clopidogrel-mediated P2Y12 inhibitory effects through synergistic mechanisms, which include upregulation of the P2Y12 signaling pathway and impaired clopidogrel metabolism.
The purpose of this study is to find the ideal range of the activated clotting time (ACT) during percutaneous coronary intervention (PCI) that is associated with lowering the rate of undesirable medical outcomes
In this study, simvastatin combined with Ezeimebum was used to enhance lipid reduction, and IVUS was used to evaluate the volume and composition of coronary plaque before and after treatment. The aim is to evaluate the overall intervention effect of Ezeimebum on stable angina pectoris with diabetes mellitus on the basis of statins.
Coronary artery bypass grafting(CABG) is the golden standard for severe coronary artery disease(CAD), the current surgery strategy is mainly based on coronary angiography(CAG), but many trials of PCI have shown that visually stenosis in CAG may not have functional significance. The aim of this study is to investigate if the Quantitative Flow Ratio (QFR) can be adopted in CABG and achieve a better graft patency.
This study is a prospective, multicenter, randomized, blind, parallel and superiority test study. It is planned to select 206 cases of subjects with small coronary artery vessel disease who meet the inclusion/exclusion criteria. They are randomly divide them into Biolimus release coronary balloon catheter treatment group and plain old balloon angioplasty catheter (Powerline) treatment group according to the ratio of 1:1. All subjects accept clinical follow-up after operation, at 30 days, 6 months, 9 months and 12 months after operation. Follow-up with angiography is conducted at 9 months. The late lumen loss in diseased segment at 9 months after operation is the primary endpoint.
The assessment of Left Main Coronary Artery (LMCA) lesions by means of coronary angiography renders serious limitations. Studies with a limited number of patients have shown that a value of FFR (Fractional Flow Reserve) above 0.80 identify a low risk of events in case of not performing revascularization in patients with intermediate stenosis in the LMCA. Although iFR (Instant wave Free Ratio) has recently been found equivalent to FFR The demonstration of the prognostic utility of iFR in patients with LMCA intermediate lesions could have an important clinical impact and justify its systematic use for the treatment decision in these high-risk patients.
Myocardial protection is of crucial importance for surgical coronary revascularization in patients with ischaemic heart diseases. The investigators proposed loop isolation-based uploading preconditioning to protect heart from ischemic-reperfusion damage (LiuPhD) as a novel cardioprotective strategy, and applied to patients who underwent on-pump coronary artery bypass grafting (CABG).
A prospective, open label, multi-center, single arm, observational study designed to evaluate the acute safety and device procedural success of the Scoreflex NC Scoring Percutaneous Transluminal Coronary Angioplasty (PTCA) catheters in subjects with stenotic coronary arteries during percutaneous coronary intervention. Two-hundred (200) subjects will be treated at up to 15 U.S. sites with the Scoreflex NC Scoring PTCA catheter during their index procedure. All subjects will be screened according to the protocol inclusion and exclusion criteria and will be followed through hospital discharge.