
Investigation of a Novel Gene Expression Test (ASGES or Corus CAD) for Diagnosis of Obstructive...
Coronary Artery DiseaseAngina Pectoris6 moreThe objective of this study is to collect data on the commercial use of Corus CAD (Age/Sex/Gene Expression score - ASGES) blood test to evaluate the clinical referral patterns of Primary Care Physicians after receipt of their patients' Corus Score, and to better understand patient management patterns for clinicians ordering the test.

Patients Expectations for Future Examination and Treatment
Coronary Heart DiseaseAim: To investigate and compare women's and men's expectations before investigation and treatment of suspected coronary artery disease and to examine how these expectations are met. Do women and men, of different ages, have the same expectations for the evaluation and treatment of stable coronary artery disease and are their expectations met in a equal degree? Are there differences in expectations and the fulfilment of these according to age and other clinical history variables? Do the findings in the specially developed questionnaire designed to gather patients' expectations to the outcome on quality of life and degree of angina pectoris relate to their appearance in the designated forms? Is there a relationship between NTproBNP - levels, as a measure of cardiac workload, and expectations and the fulfilment of these as well as the quality of life and degree of angina pectoris? Method: Patients will be asked to participate in the study, in the context of medical consultation before coronary angiography by a physician and / or a study nurse. This occurs during an outpatient visit at the cardiac clinic at the respective centre. Included are all patients planned for elective coronary angiography before possible revascularization during a eight month period regardless of diagnosis. Including are four hospitals in the region of Västra Götaland.

Telemedicine in Cardiac Surgery: A Pilot Study
Coronary Artery DiseaseTelemedicine has been widely used in managing patients with neurologic disorders or mental illness. Telemedicine is defined as the use of medical information exchanged from one site to another via electronic communications for the health and education of the patient or healthcare provider and for the purpose of improving patient care. According to our knowledge, it has not been used to manage cardiac patients who need postoperative care after discharge from hospitals. The use of telemedicine has the potential to reduce the cost of unnecessary travel by assessing the patient's postoperative status prior to making decisions as to whether or not a face-to-face consultation is necessary. In this pilot study we will compare the accuracy of surgeons' decisions during follow-up visits via video-teleconference (V-Visit) to surgeons' decisions during traditional face-to-face follow-up visits (FTF-Visits). Both the V-Visit and the FTF-Visit will take place at the Houston Michael E DeBakey VA Medical Center on the same day. We will also ask both patients and providers to complete short questionnaires after each V-Visit regarding their acceptability of using telemedicine for these post-operative follow-up visits. Information collected as part of this pilot study will be used to design a future full randomized controlled trial (RCT) on the use of telemedicine in evaluating post-operative cardiac surgical patients.

Stem Cell Migratory Activity: Prognostic Marker in Myocardial Ischemia
Myocardial InfarctionThe present project aims to determine whether a deficit in migration of stem cells could be implicated in the failure to mount an adequate collateralization after Myocardial Infarction (MI) and thereby facilitate the development of post-ischemic heart failure (HF) and to dissect underlying molecular mechanisms. Furthermore, the investigators wish to determine the predictive value of stem cell migration assay in patients with MI.

Statin and Post-interventional Coronary Microcirculation Dysfunction
Coronary Artery DiseaseThe purpose of this study is to evaluate the effect of statin on the coronary microcirculation dysfunction measured after percutaneous coronary intervention.

BuMA OCT Study(A Comparative Evaluation of the Extent of Neointima Formation at 3 Months After Implantation...
Coronary Heart DiseaseStable Angina Pectoris2 moreThe objective of this study is a comparative evaluation of BuMA stent and of EXCEL stent in terms of the extent of neointima formation at 3 months after implantation using OCT. This is a prospective, single center, randomized, open-label, non-inferiority study, which will enroll a total of 70 patients in Fuwai Hospital.All patients will be randomly assigned undergoing implantation of BuMA stent or EXCEL stent (in a 1:1 ratio). If non-inferiority was met, superiority test will be planned.

Comparison of Efficacy of Ivabradine Versus Metoprolol
Coronary Artery DiseaseIvabradine may be better than Metoprolol for controlling heart rate before Coronary CTA.

Pathophysiology and Prevention of Perioperative Myocardial Injury: A Prospective Randomized Controlled...
Coronary Artery Disease,Working hypothesis and aims: 1) To explore the pathophysiology of postoperative troponin elevations and 2) whether ranolazine, a new anti-ischemic drug that has no effect on blood pressure or heart rate, prevents postoperative myocardial injury.

Post-Market CorPath Registry on the CorPath 200 System in Percutaneous Coronary Interventions
Coronary Artery DiseaseCoronary Disease6 moreTo collect data on the routine patterns of use, safety and effectiveness, including the clinical and technical performance of the CorPath 200 System, in the delivery and manipulation of coronary guidewires and stent/balloon catheters during PCI procedures.

Outcomes, Patient Health Status, and Efficiency in Chronic Total Occlusion
Coronary Artery DiseaseThis is an observational registry, sponsored by Saint Luke's Hospital. This study is to be conducted according to DHHS Guidelines, applicable state regulations, and local IRB policies and procedures. The overall objective is to address current gaps in knowledge regarding CTO-PCI, as a prospective, multi-center, single-arm study of 1,000 participants.