There are about 173942 clinical studies being (or have been) conducted in United States. The country of the clinical trial is determined by the location of where the clinical research is being studied. Most studies are often held in multiple locations & countries.
To detect coronary artery disease by both coronary and carotid artery imaging and myocardial perfusion imaging using a new low mechanical index real time system.
People who aspirate after neurologic insults such as stroke often develop fatal pneumonia. This study examines the effects of dynamic vocal cord closure on swallowing. Implants placed over the chest wall are connected to electrodes placed around the nerve that closes the vocal cords. The patient triggers closure by flipping the switch of a coil taped over the skin covering the internal stimulator. Vocal cord motion is verified by videotaping through an endoscope, and the status of swallowing is documented radiologically by a modified barium swallow.
It is hypothesized that elevated BNP level correlate with an elevated thoracic impedance/fluid index as measured separately by CRT-D devices and external impedance cardiography. Ultimately, it is also hypothesized that both BNP and thoracic impedance/fluid index measurements are predictive of atrial and ventricular arrhythmias.
This study is attempting to understand whether or not splinting after a fingertip injury improves recovery.
Briefly our study is looking at the effects of 4 weeks of assisted exercise on the body composition and neurological/behavioral development of healthy growing premature infants enrolled between the ages of 30-33 weeks. It is a blinded study where the active group gets the exercise intervention and the control group is cuddled for the same amount of time -approximately 20 minutes. We get baseline data using muscle ultrasound, bone speed of sound and DEXA. We also get baseline blood samples to look at inflammatory mediators and growth hormone. Video of each subject is recorded an hour at two time points during the study to assess the babies for spontaneous activity. Nutritional intake information is collected daily and in the 4th week of the study assessments made for total energy expenditure using doubly labeled water. At this point in the study we repeat the ultrasounds and DEXA for comparison. Finally in the period just before discharge we do a complex neurological exam using the Brazelton NBAS assessment.
Compare the clinical characteristics and post-surgical outcomes (overall survival)of pancreatic cancer patients of Ashkenazi descent with or without germline founder mutations in BRCA1 or BRCA2 . Compare the clinical characteristics and outcomes (time to progression) of breast cancer patients of Ashkenazi descent with or without germline founder mutations in BRCA1 or BRCA2 receiving paclitaxel chemotherapy for metastatic disease.
This is an analysis of the outcomes of patients having undergone surgical intervention for infective endocarditis.
Congenital heart disease is one of the most common malformations in newborns. About 1% of newborns have cardiac malformations. Many need open heart surgery, which contributes substantially to pediatric mortality and morbidity. Recent advances in genetics suggest that many congenital heart defects are caused by mutation of genes. So far, half a dozen genes are found to be associated with congenital heart diseases, such as TBX5, NKX2.5, and GATA4, to name a few. In the near future, more genes will be identified. This study will evaluate the role of mutation of genes in congenital heart diseases and study the genotype-phenotype correlation. The central hypothesis is that a significant percentage of congenital heart disease is caused by mutation of genes involved in heart development, and the phenotype with missensed mutations is milder than nonsense mutation. Another hypothesis is that a significant proportion of patients with cardiac malformations will have mutations in their genes. The specific aim is to test the mutations of these genes in patients with congenital heart diseases. The study will provide substantial information to understand how the human heart develops. In the future, prenatal diagnosis could be developed based on this study.
To Determine whether transcranial ultrasound can detect the presence of intravenously injected microbubbles used routinely for dobutamine stress echocardiography.
This study is being conducted in patients who have been diagnosed with ulcerative colitis (UC), a form of inflammatory bowel disease (IBD) - a disease of the intestine. The purpose of this study is to test the therapeutic (medical treatment) effects of daily consumption of Kyo-Dophilus (a commercially available dietary supplement often used by individuals with inflammatory bowel disease) on their UC. Kyo-Dophilus consists of three probiotic bacteria (beneficial bacteria to help maintain the balance of good bacteria in the intestine) to help treat inflammatory bowel disease caused by bad bacteria. Patients will still be maintained on their clinical standard of care for their UC as part of their participation in this study.