Clinical trials

Abdominal aortic aneurysm, a condition characterised by an increase in the diameter of the aorta, can be treated either surgically or endovascularly. In the latter, an endoprosthesis consisting of a metal spring covered with an impermeable fabric is inserted through an artery and deployed inside the aorta. This new method appears to be less invasive than surgery, but its long-term results are not yet fully understood. As a result, patients who have undergone this treatment are monitored by their surgeon to ensure that there is no endoleak. Several research teams have proposed analysing medical images to predict this risk of endoleak. Doctors are now trying to use artificial intelligence to automate the analysis of these images.

Giant cell arteritis is a vasculitis, i.e. inflammation of the artery walls, which generally affects people over the age of 50. Diagnosis can be long and difficult, as the clinical signs are not specific (headache, pain in the jaw, scalp, shoulders and/or pelvis, abdominal pain, weight loss, etc.), but it must be made quickly, given the risk of complications. The reference method for diagnosis was initially based on clinical suspicion and analysis of a "piece of temporal artery" (biopsy) performed in the operating theatre under local anaesthetic. Since the mid-1990s, improvements in ultrasound techniques have made it possible to identify a sign, known as a halo, on the temporal arteries that is typical of patients with Giant Cell Arteritis. A prospective multicenter study published in 2024 demonstrated that, in patients with a clinical suspicion of Giant Cell Arteritis, if a halo was found on both temporal arteries by ultrasound, there was no need for a biopsy. This study is at the origin of a change in practices in the diagnosis and care of patients suffering from this disabling disease. To facilitate early diagnosis, a fast-track pathway has been set up. The aim is to make a rapid diagnosis, thereby reducing the risk of after-effects, shortening the length of hospital stays, considering outpatient treatment and limiting the number of biopsies. The investigators propose to evaluate the performance of this fast-track pathway.

Age is a major risk factor for the development of cognitive disorders and neurodegenerative pathologies. Cognitive disorders during the phases of bipolar disease are known to exist, and alterations increase significantly after the age of 65. Drug treatments seem to have only a limited effect. A cognitive stimulation program has proven his benefit to patients over 65 with neurodegenerative diseases (Israel, 2004). We propose to evaluate this cognitive stimulation program that we have adapted to bipolar disease.