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Discover 15,299 clinical trials near Boston, Massachusetts. Find research studies in your area.
Showing 11381-11400 of 15,299 trials
NCT01786161
Vancomycin is an essential antimicrobial which is frequently used in the ICU for suspected methicillin-resistant Staphylococcus aureus (MRSA) infection. Therefore, it is vital to optimize the dosing of vancomycin for this critically ill population. The most efficacious method of administering vancomycin is debated in the literature. Since vancomycin is associated with slow bactericidal activity, it is important to closely monitor serum concentrations so as to achieve early target serum concentration, particularly when treating aggressive S. aureus infections. One study has shown that vancomycin infused continuously may enable faster and more consistent achievement of a therapeutic serum concentration when compared to intermittent infusion. A faster achievement in the goal serum vancomycin concentration would be a protective factor for intensive care unit mortality in patients with MRSA infection. Currently in the surgical ICU (SICU) of our institute, vancomycin is administered based on a vancomycin dosing nomogram. Less than fifty percent of the ICU patients following this nomogram achieved target vancomycin concentration of 15 after 24 hours. To better achieve target vancomycin concentration in 24 hours, we developed a new vancomycin dosing nomogram with a continuous infusion. The aim is to determine which of the two dosing nomogram is more efficient and safer for SICU patients.
NCT01927887
The purpose of this research study is to see if a specific kind of MRI can identify small and otherwise undetected abnormal lymph nodes in patients with thyroid cancer who are undergoing surgery. The MRI is called Ultra-Small Superparamagnetic Iron Oxide Magnetic Resonance Imaging (USPIO MRI), and uses an experimental contrast agent (ferumoxytol), to try to identify these lymph nodes. The MRI uses magnetic waves to take images (pictures) of the body and is commonly used in medical testing. Ferumoxytol is FDA approved as an iron replacement product for the treatment of iron deficiency anemia in adult patients with chronic kidney disease. In this research study, the investigators want to see if Ferumoxytol will help to identify very small metastases that are not usually seen on standard MRI scans. If the use of USPIO MRI with the experimental agent ferumoxytol identifies very small metastases in lymph nodes, your surgeon may decide to remove them. After the surgery, the nodes will be stored and then analyzed to assess the ability of USPIO MRI and ferumoxytol to detect cancer in very small metastases in the lymph nodes.