View clinical trials related to Myocardial Ischemia.
Filter by:CrossBoss First is a single-blind randomized controlled trial that will randomize 246 patients undergoing clinically-indicated Chronic Total Occlusion Percutaneous Coronary Intervention, to upfront use of the CrossBoss catheter vs. antegrade guidewire escalation strategy The "CrossBoss First" study has two primary objectives. The primary efficacy objective is to compare the procedure time required to cross the CTO or abort the procedure with a CrossBoss first vs. antegrade wire escalation strategy. The investigators hypothesize that upfront use of the CrossBoss catheter will be associated with shorter procedure time required for CTO crossing compared with an antegrade wire escalation strategy. The primary safety objective is to compare the frequency of procedural major adverse cardiovascular events (MACE) with upfront use of CrossBoss vs. a guidewire escalation strategy. The investigators hypothesize that upfront use of the CrossBoss catheter will be associated with similar incidence of MACE compared with an antegrade wire escalation strategy. The secondary endpoints are: (1) technical and procedural success4-6; (2) total procedure time (defined as the interval between administration of local anesthesia for obtaining vascular access and removal of the last catheter); (3) fluoroscopy time to cross the CTO and total fluoroscopy time; (4) total air kerma radiation exposure; (5) total contrast volume; and (6) number of wires, microcatheters, balloons, and stents used.
This study evaluates in vivo intracoronary imaging using intravascular ultrasound and optical coherence tomography and safety and efficacy of new generation fully bioresorbable vascular scaffolds in four well defined systemic autoimmune (rheumatoid arthritis, mixed connective tissue disease, systemic sclerosis, systemic lupus erythematosus) and concomitant coronary disease patients.
Prospective, single center, randomized and non-inferiority study, to include up to 60 patients with de novo coronary artery disease. Patients will be followed at 30 days, 3, 6 and 12 months. At 3 months all patients will be submitted to angiographic and OCT evaluation.
The primary objective of this study is to evaluate the success of lesion preparation with either rotational atherectomy or cutting/scoring balloons as well as the long term effects of a hybrid sirolimus-eluting stent in an angiographically well-defined group of patients with complex calcified coronary lesions.
The objective of the HeartFlow ADVANCE Registry is to evaluate utility, clinical outcomes and resource utilization of FFRCT-guided evaluation in clinically stable, symptomatic patients with coronary artery disease (CAD) in order to further inform patients, health care providers, and other stakeholders about which technologies are most effective and efficient in the diagnosis and management of CAD.
In patients undergoing off-pump coronary artery bypass (OPCAB) surgery with different anesthesia regimens: remifentanil (0.75 mcg/kg/min) and propofol (TCI effect-site concentration 0.8-1.5 mcg/ml) (Group -RP); remifentanil (0.75 mcg/kg/min) and sevoflurane (end-tidal 0.8 vol%) (Group-RS), or sevoflurane (end-tidal 1.2-2.8 vol%)-sufentanil (TCI effect site concentration 0.35-0.75 ng/ml) (Group-SS), intergroup difference in the level of Troponin I (c-TnI) and creatinine kinase subtype-MB is determined before surgery (control), during vascular graft harvesting (harvesting), after completing graft construction (postgrafting), and one day after surgery (postoperative).
The investigators aim to evaluate circulating irisin levels alterations in patients with acute myocardial infraction and in patients with coronary artery disease subjected to percutaneous coronary intervention.
Cardiac surgery associated acute kidney injury (CSA-AKI) has been recognized as the second most common cause of hospital acquired AKI. The development of CSA-AKI is independently associated with an increased risk of in-hospital death. There are currently no biomarkers that could identify patients at higher risk for AKI and current risk predictor scores that are based on clinical and demographic information are inadequate. Therefore, a diagnostic test for predicting AKI risk in this clinical context would assist clinicians to optimize surgical strategy and postoperative care to prevent CSA-AKI occurrence and improve patient outcomes. The primary purpose of this study is to measure the association between baseline expression of senescence markers in blood using SenesceTest and the occurrence of CSA-AKI post surgery.
Diabetic type 2 patients (DB2) has a higher prevalence of coronary artery disease (CAD) than non-diabetic persons. Presence of CAD results in murmurs arising from the filling of the arteries and can be detected by the CADScor System and can together with biological patient profile indicate the risk of presence of CAD in the patient. In the pilot study 100 asymptomatic DB2-patients examined with CADScor System and biomarkers will be compared with computed tomography (CT) cardiography and single-photon emission computed tomography (SPECT) for assessing if combination of patient profile (gender, age etc) combined with above measures may give rise to new improved risk scoring method for he DB2-patient.
The purpose of the study was to analyze negative affectivity (NA) and social inhibition (SI) inquired by DS14 score in type D personality (distressed personality) to the relation of autonomic regulation of heart function (HRV) and immune response (T lymphocyte) among obese patients within coronary heart disease group (CHD). As stress is the key psychological activator of the hypothalamic-pituitary-adrenal axis (HPA axis) and therefore an important risk factor for diminished immune competency and prevalence of chronic conditions such as obesity, investigators chose exercise as the stress release intervention, especially as chronic stress may have a role in obesity, related to initiation or exacerbation of the condition. Abnormal regulation of the hypothalamic-pituitary-adrenal axis is additionally associated with chronic inflammatory conditions. Proinflammatory T-lymphocytes are present in visceral adipose tissue and may contribute to local inflammatory cell activation before the appearance of macrophages, suggesting that these cells could play an important role in the initiation and perpetuation of adipose tissue inflammation.