There are about 28871 clinical studies being (or have been) conducted in Canada. 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.
There are no published clinical consensus guidelines on the treatment of cardiac sarcoidosis. Corticosteroid therapy is advocated by some experts, but is based on small observational studies, with varied clinical response. Objectives of this trial: - to systemically assess the response of patients with cardiac sarcoidosis, to treatment with corticosteroids - to identify the clinical predictors of response to treatment with corticosteroids - to assess the utility of imaging with PET and MRI to predict response to treatment with corticosteroids - to determine the prevalence of cardiac sarcoidosis in young patients with unexplained heart block and in patients with unexplained dilated cardiomyopathy associated with ventricular tachycardia - to use the data from this pilot study to assess the need, feasibility, and sample size for a larger multicentre trial
The objective of this study is to determine if the glottic view obtained with the air-Q Intubating Laryngeal Airway (air-Q ILA, Cookgas LLC®, Mercury Medical®, Clearwater, FL, USA) is better than that obtained with the traditionally used intubating laryngeal mask airway (LMA FastrachTM or ILMA, LMA North America Inc., San Diego, CA). The study will also compare effectiveness of ventilation.
The purpose of this study is to assess the value in terms of sensitivity, specificity and likelihood ratio of the stress echocardiography in the screening of pulmonary arterial hypertension in patients with systemic sclerosis and indirect signs of pulmonary arterial hypertension.
Dysphagia is a common reason for referal to the investigators Gastoenterology service. As many as 14% of patients undergoing radiological studies for dysphagia are found to have schatzki rings. Current recommendations for treatment of patients with symptomatic Schatzki rings are based on ancedotal experience and uncontrolled studies. The only randomized study on comparison of techniques the investigators were able to locate was published in 2000 and included only 26 patients. This study demonstrated that the biopsy techinque was as effective as and better tolerated than the standard dilation technique. Considering that the cost and time required for dilatation is greater than the basic biopsy technique, significant cost savings could be achieved using the biopsy technique. As well, patient satisfaction is an important factor considering that Schatzki rings can recur and repeated endoscopy is often required. Therefore, a study that shows a technique to be as or better than the current standard in effectiveness, cost, time, and patient comfort could lead to shift in current practice.
Weight loss resulting from poor food intake is common in head and neck cancer patients. Currently, feeding tubes are placed before starting treatment to provide nutrition and prevent weight loss. However, studies have not always shown that feeding tubes prevent weight loss. Also, limiting food intake by mouth may lead to swallowing problems. The aim of this study is to compare the effect of diet and swallowing therapy with feeding tube placement. In this study, your weight, food intake, swallowing ability, and side-effects of treatment will be monitored before, during, and 3 and 6 months after treatment to see if there is any difference between the therapy groups. The investigators hope that with the addition of diet and swallowing therapy during treatment that we can improve food intake and swallowing ability while still maintaining weight.
This study will assess the efficacy of BGG492 as adjunctive treatment in patients with refractory partial onset seizures
The purpose of this study is to evaluate the safety and efficacy of the ATS 3f® Aortic Bioprosthesis, Model 1000 (Equine Pericardial Bioprothesis) size 19mm in a patient population undergoing isolated aortic valve replacement of his/her native aortic valve, or replacement of a failed prosthesis.
The purpose of the project is: 1. to determine the incidence of complex sleep apnea 2. to determine what percentage of cases will resolve over time with therapy with Continuous Positive Airway Pressure 3. Determine whether there is any difference in outcome, in those with persistent complex sleep apnea on CPAP, between those treated with CPAP or adaptive servo-ventilation.
Hepatitis B is a vaccine preventable infection which can be transmitted through occupational exposure. Approximately 15% of patients will not respond to an initial series of vaccination. Of those re-vaccinated approximately fifty percent will respond. On the basis of poor response to a third series, repeat vaccination is not recommended and non-responders are considered vulnerable to infection. Cardell studied the use of double dose combination hepatitis A and B vaccine (Twinrix) in non responders who had received four or more doses previously and found a high response rate suggesting this vaccine and dose could be effective. The investigators study seeks to duplicate the findings of Cardell, using a more strict definition of non-responder (6 or more previous doses).
Observing the effects of an Olympus cap on the visibility and in adenoma detection during colonoscopy.