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Active clinical trials for "Coronary Disease"

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Association Study of Gene Polymorphisms With Cardiac Performance

Genetic PolymorphismCoronary Artery Disease1 more

The purpose of this study is to determine whether polymorphisms in G protein subunits, namely Galphas and Galphaq, are associated with altered cardiac performance in heart failure patients.

Unknown status4 enrollment criteria

The Correlation of Heart Hemodynamic Status Between 320 Multidetector Computed Tomography, Echocardiography...

Coronary Artery Disease

With the advances in multidetector computed tomography (MDCT) technology, CT angiography (CTA) of the coronary arteries using 64-slice or dual-source CT systems has evolved into a robust, alternative, noninvasive imaging technique to rule out coronary artery disease (CAD). Reported sensitivities and specificities of coronary CTA can compete with those of catheter angiography. Because CT is the major source of ionizing radiation in medicine, dual isotope myocardial perfusion scintigraphy and coronary CTA 16-, 64-slice MDCT and DSCT scanners are associated with the highest amount of radiation dose. Recently, a new generation of MDCT machines with even more detector row (320) has become clinically available. The maximum detector width of 16 cm enables the entire heart to be examined in a single rotation and within a single heartbeat and is expected to substantially reduce artifacts from breathing and body motion. Due to high volume coverage, 320-slice CT machines are able to perform a nonspiral, ECG-gated examination of the heart within a single breath-hold. The purpose of this study was to investigate the correlation of hemodynamic status of 320 MDCT, echocardiography, and coronary catheterization in patients who suspected coronary artery disease.

Unknown status8 enrollment criteria

Chest Pain, Illness Perception Compliance and Psychosocial Outcome After Coronary Arteriography...

Coronary Disease

Chest pain, illness perception compliance and psychosocial outcome after coronary arteriography. A comparison between patients which were diagnosed with slow coronary flow and patients who have been diagnosed with coronary artery occlusion. We hope to prove that the more knowledge and awareness the patient has about his disease the better his compliance and rehabilitation.

Unknown status2 enrollment criteria

Role of Endothelial Function, Muscular Fitness and Metabolism in Functional Activity in Patients...

Chronic Heart FailureCoronary Disease1 more

Shortness of breath, fatigue, and exercise intolerance are clinical symptoms of chronic heart failure (CHF). Recent studies suggested that peripheral impairment was the major cause of clinical symptoms, and mechanism may be related to neuroendocrine impairment and vascular smooth muscle dysfunction. It results in increased peripheral resistance that may influence limb blood flow, muscle fitness and activities of daily.The purposes of this study are to compare muscular strength, endurance, and perfusion of quadriceps between CHF patients and healthy controls by isokinetic test and near-infrared spectroscopy (NIRS) and difference in activities of daily living to compare endothelium function between CHF patients and healthy control subjects the relationship between endothelium function, muscular strength, endurance, perfusion, and metabolism of quadriceps.

Unknown status5 enrollment criteria

Investigation of Genetic Risk of Cardiovascular Disease in Prospective Cohort Study

HealthyCoronary Disease2 more

Cardiovascular disease is a complex multifactorial and polygenic disorder that is thought to result from an interaction between a person's genetic make up and various environmental factors. Although many studies have revealed that several genetic variants increase the risk of cardiovascular disease, the results of these studies remain controversial. The purpose of this study is to identify polymorphisms that confer susceptibility to cardiovascular disease and to clarify the adequacy of reported susceptibility gene polymorphisms. To complete this purpose, we will prospectively study over 5,000 local residents in whom relationship between these polymorphisms and occurrence of cardiovascular disease over 5 years.

Unknown status1 enrollment criteria
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