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Browse 47,334 clinical trials for rheumatoid arthritis. Find studies that match your criteria and connect with research centers.
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Showing 28841-28860 of 47,334 trials
NCT03790007
Since 1987, laparoscopic cholecystectomy has become the standard procedure for gallbladder stones and lesions. Complications due to improvements in laparoscopy and increased surgical experience have decreased day by day, but there is still a problem in terms of postoperative pain management. Several pain management procedures have been tried to combat pain after laparoscopic cholecystectomy. The aim of this study is to decrease the length of hospital stay, to increase the comfort of the patient and to reduce the cost of treatment. Local anesthetic injection to port locations, intraperitoneal periportal local anesthetic injection ,Transversus Abdominis Plane Blok and without any local anesthetic application to the control group compared to the group's analgesic efficiency and to reduce the amount of analgesics needed, shorten the length of hospital stay and improve patient comfort.
NCT04476680
This study is intended to address the association between vitamin D status and seroconversion to SARS-CoV-2 in healthy young adults. The primary aim of the study is to determine the rates of 'silent' seroconversion rates, consistent with asymptomatic transmission of SARS-CoV-2, in a young healthy adult population with a wide spread of vitamin D concentrations. The secondary aims of this study are to explore: 1. Any effect of vitamin D status on symptomatic illness. 2. The background 'point' prevalence and subsequent rate of increase in seropositivity for SARS-CoV-2 in healthy young adults. 3. The individual reductions in seropositivity to SARS-CoV-2 over time, and changes in seropositivity in a defined young adult population over time. 4. Where salivary Immunoglobulin A (IgA) may be used to provide an alternative/ complementary serological method 5. The effect (if any) of vitamin D supplementation on seroconversion rates stratified by: i) level of baseline vitamin D 'deficiency/ insufficiency/ sufficiency' status; ii) extent of BMI-defined normal/overweight/obesity cut-offs and iii) gender.