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Clinical Trials About "Effect of Mental Stress on Myocardial Perfusion in Women" RSS

00:34 EDT 19th July 2019 | BioPortfolio

We list hundreds of Clinical Trials about "Effect of Mental Stress on Myocardial Perfusion in Women" on BioPortfolio. We draw our references from global clinical trials data listed on ClinicalTrials.gov and refresh our database daily.

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Showing "Effect Mental Stress Myocardial Perfusion Women" Clinical Trials 1–25 of 33,000+

Extremely Relevant

Effect of Mental Stress on Myocardial Perfusion in Women

Mental stress-induced myocardial ischemia(MSIMI) has been recognized a significant clinical problem. Evidence has shown that individuals with MSIMI have 2 to 2.5 times higher risk to develop a major averse cardiovascular events over 3-5 years, compared to their counterparts who have no MSIMI. Nevertheless, investigations into the study of MSIMI among women who have chest pain but artery stenosis < 50% have been lacking. In this project, the investigators used positron emission ...


The Effect of Exercise Training on Mental Stress-Induced Silent Ischemia

Coronary artery disease (CAD) remains the leading cause of death in the elderly. Silent myocardial ischemia (SI) is a manifestation of CAD in which there is a transient alteration in myocardial perfusion, function, and/or electrical activity not accompanied by chest pain. Mental and emotional stress, in particular hostility and anger are potent inducers of SI, Individuals with SI are at a 3-5 fold higher risk for the development of angina, myocardial infarction and death than s...

Effectiveness Study of Single Photon Emission Computed Tomography (SPECT) Versus Positron Emission Tomography (PET) Myocardial Perfusion Imaging

The purpose of this study is to compare pharmacologic stress myocardial perfusion PET with pharmacologic stress myocardial perfusion SPECT in a near-simultaneous, head-to-head comparison in the same patient. The investigators hypothesize that pharmacologic stress myocardial perfusion PET will prove superior to pharmacologic stress myocardial perfusion SPECT as a first-line diagnostic test for higher-risk patients with known coronary artery disease (CAD) who present with sympto...


Both Exercise and Adenosine Stress Testing

The purpose of this study is to compare the 2-year cardiac outcomes for women with limited exercise capability based on the resuls of either pharmacological stress myocardial perfusion imaging or a combined protocol that incorporates both exercise and pharmacological stress. The goal of the study is to compare these two methods for patient tolerability, safety and prognostic value

Lexiscan(TM) Rb-82 Myocardial Perfusion PET: A Comparison With Dipyridamole Stress

Lexiscan(TM) has ideal properties for Rb-82 PET imaging and the stress response it invokes may offer multiple advantages for the diagnosis of coronary disease and functional abnormalities. The goal of this investigation is to establish quantitative equivalence of Lexiscan(TM) rest/stress Rb-82 PET images to dipyridamole rest/stress images.

ADVANCE MPI 2: Study of Regadenoson Versus Adenoscan® in Patients Undergoing Myocardial Perfusion Imaging (MPI)

Adenoscan® (adenosine) is an approved pharmacological stress agent indicated as an adjunct to thallium-201 myocardial perfusion scintigraphy in patients unable to exercise adequately. The investigational drug, regadenoson (CVT-3146) is a selective A2A adenosine receptor agonist, the receptor responsible for coronary vasodilation, and is being studied for potential use as a pharmacologic stress agent in myocardial perfusion imaging (MPI) studies. This study will compare the s...

Myocardial Perfusion and Fibrosis in Cancer Survivors

This is a cross-sectional pilot study. The investigators seek to obtain early information pertaining to the relationship between measurements of myocardial perfusion reserve and myocardial fibrosis after receipt of Anthracycline-based chemotherapy (≥2 years prior).

Impact of Stress CT Myocardial Perfusion on Downstream Resources and Prognosis

CT myocardial perfusion imaging (CTP) represents one of the newly developed CT-based techniques but its cost-effectiveness in the clinical pathway is undefined. The aim of the study is to evaluate the usefulness of combined evaluation of coronary anatomy and myocardial perfusion in intermediate to high-risk patients for suspected CAD or with known disease in terms of clinical decision-making, resource utilization and outcomes in a broad variety of geographic areas and patient s...

Anti-gravity Treadmill Exercise in Stress Myocardial Perfusion Imaging

This study will test the hypothesis that the anti-gravity treadmill can be safely used in stress nuclear myocardial perfusion imaging in patients unable to perform conventional treadmill exercise. This will be foundational evidence on which to consider a larger clinical trial to show that the anti-gravity treadmill improves diagnostic specificity across all cardiovascular stress testing modalities including treadmill-alone, exercise stress echocardiogram, exercise SPECT ...

Perfusion Imaging With Myocardial Contrast Echocardiography in HCM

The objective of this study is to determine whether myocardial contrast echocardiography in patients with cardiomyopathy (HCM) can detect resting hypo-perfusion due to fibrosis or stress induced perfusion defects due to associated abnormalities in intramyocardial arteries and the microcirculation. A secondary aim will be to determine whether abnormalities in perfusion are associated with either severity of symptoms (chest pain and dyspnea), presence of arrhythmias, and regional...

Maximal Bruce Protocol With the Use of Regadenoson For Myocardial Perfusion Stress Testing

It is been known for at least 20 years that the hemodynamic data, the amount of exercise performed as well as symptoms on the treadmill, has significant value to the perfusion stress testing. When a pharmacologic stress test is performed (and adenosine stress test over 4-6 minutes), this hemodynamic data is lost. Because of this loss of valuable data, it is felt that there is also a loss of significant prognostic data as well. With the advent and FDA release of Regadenoson in a...

Real Time Myocardial Contrast Echocardiography and Dobutamine Stress Perfusion Magnetic Resonance Imaging

The present study is designed to: 1. investigate the safety and efficacy of Real time myocardial echocardiography (RT-MCE) in adolescents and adults ages 13-40 with congenital and acquired congenital heart disease 2. compare RT-MCE with dobutamine stress perfusion MR for determination of coronary flow reserve and ventricular wall motion 3. assess regional myocardial mechanics using myocardial speckle tracking and MR tagging.

Study of the Safety and Efficacy of Apadenoson for Detection of Myocardial Perfusion Defects Using Single-Photon Emission Computed Tomography (SPECT) Myocardial Perfusion Imaging (MPI)

The purpose of this study is to see whether apadenoson is as effective as adenosine when used as a pharmacological stress agent in myocardial SPECT-Imaging to detect defects in the supply of blood to the heart muscle (myocardial perfusion defects). The study will also look at whether apadenoson is better tolerated than adenosine when used in SPECT-MPI.

Combined Supine/Prone Acquisitions in Stress-First/Stress-Only Myocardial Perfusion Imaging to Reduce Equivocal Results

You are being asked to participate in this research study because your doctor has ordered a myocardial perfusion SPECT (Single-Photon Emission Computed Tomography) scan to look at the blood flow in your heart. Myocardial perfusion imaging is a proven test that looks at the blood flow to your heart after the injection of a radioactive tracer. The standard test requires two injections of the radioactive tracer and takes images of your heart at rest and after a stress test. It ...

Effect of Ranolazine on Myocardial Perfusion Assessed by Serial Quantitative Exercise SPECT Imaging

This study enrolled participants with documented exercise-induced myocardial ischemia in order to evaluate whether ranolazine, when taken prior to exercise, can improve blood flow to the heart (myocardial perfusion), as assessed by exercise-induced myocardial perfusion defect size (PDS) and total perfusion deficit (TPD), using gated single photon emission computed tomography (SPECT) myocardial perfusion imaging (MPI). This was a 2-period crossover study. The last dose of each ...

Utility of Regadenoson Low-dose Dynamic Computed Tomography for Myocardial Perfusion Assesment (ULYSSES Study).

The ULYSSES study is a single-center, prospective study aimed at evaluation of myocardial ischemia using regadenoson low-dose dynamic computed tomography myocardial perfusion imaging (CTP) in patients diagnosed with intermediate coronary artery stenoses in referrence to the magnetic resonance myocardial perfusion imaging (MR MPI).

Responses of Myocardial Ischemia to Escitalopram Treatment

Depression is commonly seen in patients with cardiovascular disorders. In recent studies it has been shown that mild to moderate depression symptoms were associated with increased likelihood of mental stress-induced myocardial ischemia (MSIMI), which is a risk factor of poor cardiac outcome. In this project, the investigators aim to assess the treatment of mental stress-induced myocardial ischemia in ischemic heart disease patients with mild to moderate depressive symptoms. T...

Dynamic CT Myocardial Perfusion Imaging

This study aims at evaluating the feasibility of CT myocardial perfusion imaging in daily clinical practice and compare it to SPECT perfusion imaging in order to assess sensitivity and specifity of CT myocardial perfusion imaging compared to SPECT.

Relevant

Effect of Mental Stress on Platelet Function

The aim of the project is to study the acute and chronic effect of mental stress on platelet adhesion and aggregation in two population composed of normal subjects at different ages

Determination of Coronary Flow Reserve by Dynamic Myocardial Perfusion Scintigraphy

Because of its availability, non-invasiveness, and high diagnostic performance, myocardial perfusion tomoscintigraphy has become a standard tool for the detection, characterization and monitoring of coronary artery disease. Standard analysis, based on the reversibility of regional myocardial hypoperfusion between stress (physiological or pharmacological) and rest, has good sensitivity and negative predictive value in the search for myocardial ischemia. However, two major obstac...

Dotarem Evaluation for Myocardial Perfusion CMR

The overall goal of this study is to investigate the signal intensity and relaxation rate characteristics of gadoterate meglumine (Dotarem, Guerbet, USA) enhanced myocardium during rest and stress perfusion cardiovascular magnetic resonance (CMR) compared to gadobutrol (Gadavist) to prove that Dotarem provides constantly high myocardial relaxation necessary for accurate quantitative perfusion evaluation. The purpose of this study is to compare two types of contrast that patien...

Dipyridamole Induced Ischemia and Biomarkers

Analysis of certain biomarkers and transient myocardial perfusion deficit revealed by myocardial perfusion scintigraphy.

Myocardial Perfusion Imaging in Liver Transplantation Candidates

The optimal screening strategy for assessment of coronary artery disease in patients with end-stage liver disease (ESLD) is unclear. Although consensus based guidelines support noninvasive stress testing prior to orthotopic liver transplantation (OLT), no prospective studies are available to inform the clinician on perioperative risk stratification. This observational cohort study was designed to determine the prognostic utility of single photon emission computed tomography (SP...

Absolute Quantification of Coronary Flow Reserve by Stress Perfusion MRI

Coronary artery disease (CAD, coronary heart disease) is the leading cause of death in the U.S., causing 1 in 5 deaths in 2005. The current method for diagnosing coronary artery disease that is considered most accurate is coronary angiography however it involves risk and radiation. Alternatively nuclear imaging test and MRI stress test only permits the semi qualitative analysis of the myocardial perfusion images. In this proposal the investigators will develop a means to calcu...

Stress and Rest Myocardial Tomoscintigraphies Using Mono- or Double-isotope Protocol With a Semiconductor Camera

The purpose is to demonstrate the concordance of diagnostic information obtained with: 1. a conventional examination with 2 distinct recordings on D.SPECT camera after 99mTc-sestamibi injections, the first post-stress and the second at rest, 2 to 3 hours later, and 2. a double isotope examination with a supplementary recording after injection of a little activity of thallium-201 at rest after the first recording and before the second ...


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