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.
The purpose of this study is to see if the nicotine patch reduces post operative nausea and/or vomiting (PONV) among non-smoking patients who are at high risk of PONV.
Will use visual analog scales to compare effectiveness of traditional hematoma block vs ultrasound guided hematoma block with regards to pain. This will be done for closed forearm fractures.
This study will compare the physiologic responses between exercise stress echocardiography and pharmacologic stress echocardiography on left ventricular volume and wall stress.
This preliminary study will compare the effectiveness of two-dimensional and three-dimensional echocardiographic measurements of wall thickness and left ventricular mass in patients with Aortic Stenosis
In this study we hope to establish the prevalence of urinary urge symptoms (with or without incontinence) in a multicultural, underserved, hospital clinic population in women between the ages of 20 and 45. Quality of life (QOL) in these individuals will be examined. The goal is to show a 15% reduction in number of voids in a 24 hour period in our study population after 12 weeks of treatment with solifenacin succinate. Hypothesis: We believe that urinary urge symptoms are under-reported in young women and believe they pose a significant strain on quality of life on otherwise young, healthy individuals. Treatment with solifenacin succinate will improve symptoms, in turn improving QOL for these individuals.
This study is being conducted to compare the effects that 2 different combinations of heart failure medications have on the levels of certain blood markers which cause and/or worsen heart failure. Additionally, the investigators will investigate any differences that may exist between Hispanics and Non-Hispanics. The investigators hope to find that Hispanic Americans will have a greater response to this new regimen compared to non-Hispanic Americans.
Phenoxybenzamine, an irreversible alpha-adrenergic blocker, may prove beneficial to infants and children with congenital heart disease undergoing open cardiac repair, due to a theoretic benefits of a uniform and smooth reduction in systemic vascular resistance in the perioperative period. Vasodilation allows for low pressure, high flow systemic perfusion while on cardiopulmonary bypass. Support for the use of phenoxybenzamine in humans has been documented in several studies involving the perioperative management of both adults and children requiring cardiopulmonary bypass, and in management of patients with pheochromocytoma. 1-7 Phenoxybenzamine has been associated with more uniform body cooling and rewarming, and improved tissue perfusion during bypass.8 It is also known to increase cardiac output, stroke volume, and renal blood flow when given intravenously. 9 Specifically in pediatric open heart surgery, the combined use of phenoxybenzamine and dopamine provided a stable hemodynamic condition without a high total peripheral vascular resistance and stimulated postoperative diuresis. 9 Afterload reduction with parenteral phenoxybenzamine in neonates undergoing the Norwood procedure for hypoplastic left heart syndrome is associated with improved systemic oxygen delivery and stabilization of systemic vascular resistance.10 Furthermore, a strategy of reducing afterload with phenoxybenzamine and stabilizing the pulmonary to systemic flow ratio in this select population of patients has also been shown to improve operative survival. 11 We hypothesize that phenoxybenzamine will reduce afterload on the systemic ventricle in our selected patient population, thereby improving ventricular performance and decreasing the risks of pulmonary to systemic flow imbalance associated with current short-acting vasodilator therapy. We will plan to evaluate both physiologic variables as well as surgical outcomes in the selected study population.
This study will compare the effectiveness of delivering cognitive behavioral therapy for children with anxiety disorders through in-person contact versus through workbooks and telephone communication.
Papilledema is defined as swelling of the optic nerves often due to increased intracranial pressure. When present, it often indicates life-threatening lesions of the brain such as tumors, abscesses, meningitis, encephalitis, venous sinus obstruction or intracranial hemorrhage. A similar clinical picture can also be caused by other conditions such as malignant hypertension, diabetic papillopathy and uremia. When the intracranial pressure is elevated in the absence of any known cause then it is called Idiopathic Intracranial Hypertension (IIH). Untreated papilledema can cause progressive optic nerve damage and blindness. Patients with chronic kidney disease have a number of co-morbidities and thus are at an increased risk for developing papilledema. Although clinicians have observed that patients with kidney diseases have increased incidence of papilledema (unpublished data by Corbett et al), there have been no studies on this subject to date. We believe that a higher incidence of papilledema is found in patients with kidney diseases and this study could provide evidence to suggest routine ophthalmic screening in this patient group. Hypothesis: The prevalence of optic disc swelling is increased in patients with chronic kidney disease. Purpose: To establish the prevalence of disc edema in patients with chronic kidney disease.
The purpose of this study is to determine if EGFR status (positive or negative) by FISH can predict response to cetuximab therapy in NSCLC patients treated with carboplatin and paclitaxel