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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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NCT00697411
Based on our current understanding of Aicardi syndrome, the condition is hypothesized to occur due to a genetic change on the X-chromosome. The research team is investigating Aicardi syndrome to identify the specific gene location associated with the disorder. The investigators are collecting blood and skin biopsy samples from patients and their parents. A permanent cell line is prepared and DNA from the blood and skin samples and cell lines is isolated and then used for genetic testing. The current research includes microarray analysis which which is used to look for duplications or deletions of genetic material, mutation analysis of candidate genes by sequencing, genome-wide sequencing, review of medical records to identify trends suggesting possible candidate genes of interest, and X chromosome inactivation studies.
NCT05249036
A drop in blood pressure during anaesthesia for a surgical procedure has been associated with worse patient outcomes, including complications such as damage to the heart, brain and kidneys. Continuous blood pressure monitoring prior to the start of anaesthesia alerts the anaesthetist to drops in blood pressure and allows this to be treated promptly. This may help to avoid the complications described above. Continuous blood pressure monitoring is carried out by inserting a small plastic tube (cannula) into an artery. In this study, the investigators propose inserting a cannula into the radial artery in the wrist before a patient is anaesthetised for surgery. The usual technique for insertion of this cannula is for the anaesthetist to identify the site of the radial artery by feeling for an arterial pulse with the fingertips (palpation). An alternative technique for identification is to use ultrasound. Ultrasound creates a two-dimensional image of the area under the skin on a screen, enabling the operator to visualise the artery being targeted. This may reduce the number of cannulation attempts required, reducing patient discomfort.