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Browse 5,960 clinical trials for multiple sclerosis. Find studies that match your criteria and connect with research centers.
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NCT06336499
Orbital tumors can be categorized into benign and malignant tumors, and there are significant variations in their biological behavior, treatment, and prognosis. This study aims to enhance the accurate diagnosis and risk stratification of orbital tumors using artificial intelligence (AI) technology and multiparameter magnetic resonance imaging (MRI) data. It further explores the intrinsic relationship between MRI and the differential diagnosis of benign and malignant orbital tumors, as well as the pathological subtypes of malignant tumors and Ki-67 expression levels. This research aims to aid in guiding personalized diagnosis and treatment decision-making for patients with orbital tumors while promoting the practical application and incorporation of AI technology.
NCT06338332
Rationale: Approximately 13% (range 10-28%) of all colorectal cancer patients (CRC) present with an acute obstruction. Postoperative mortality after an emergency resection is known for its high risk of morbidity and mortality. Different options can be considered in the management of obstructing right sided CRC: 1) primary resection, simultaneous treatment of obstruction and tumour resection, or 2) staged treatment of the obstruction with secondary resection of the tumour. Currently, in the Netherlands, an emergency resection has been judged to be inferior to postponing surgery. Patients who present with right sided obstructive colon cancer at one of the participating hospitals are subjected to a bridge to surgery (BTS) protocol. Objective: The primary objective of this study is to determine the feasibility of BTS protocols in right sided obstructive colon cancer and reduce mortality- and morbidity (stoma rates, major- and minor complications) rates in potentially curable patients presenting with acute obstructing colon cancer. Study design: This is a multicentre, prospective registration study Study population: All patients presenting with high clinical suspicion or histologically proven right sided colon cancer and signs of obstruction of the large bowel. Intervention: Prospective registration of the implementation of bridge to surgery protocols in patients with (acute) malignant right sided obstruction of the colon, without suspicion of perforation (tumour perforation or blow out) in order to optimize patients preoperatively. The BTS approach encompasses the utilization of either ileostomy creation, stent placement or nasogastric tube for decompression, which is subsequently followed by definitive surgical treatment at a later stage. BTS also involves pre-optimization, prior to the surgical procedure, with the following approach: optimizing the nutritional health status improving the physical health status of the patient. Main study parameters/endpoints: The primary endpoint is complication-free survival (CFS) at 90 days after hospitalization. Complication is defined here as mortality and/or development of a major complication (Clavien-Dindo classification ≥3). With a total follow up of three years. Secondary endpoints: overall mortality, morbidity (stoma rates, minor complications), in hospital stay, oncologic quality of resection and other occurring adverse events.