Identification of Epigenetic Risk Factors for Ischemic Complication During the TAVR Procedure in the Elderly

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This is a french multicenter prospective cohort study. Patients with severe symptomatic aortic stenosis referred for a TAVI procedure to the cardiology departments of the university hospitals of Lille, Caen, Amiens and the Pitié-Salpêtrière hospital (APHP) are analyzed for inclusion in this prospect...

This is a french multicenter prospective cohort study. Patients with severe symptomatic aortic stenosis referred for a TAVI procedure to the cardiology departments of the university hospitals of Lille, Caen, Amiens and the Pitié-Salpêtrière hospital (APHP) are analyzed for inclusion in this prospective study. The cases are selected after a discussion between the members of the local TAVI "Heart Team" (cardiologists, cardiac surgeons, anesthetists), as recommended by the guidelines of the European Society of Cardiology. Written consent is obtained in accordance with international recommendations for clinical research (Helsinki Declaration). Participation in the study is proposed to patients during preoperative consultation. The collection of clinical data, including postoperative cerebral MRI, is collected prospectively during hospitalization and during the clinical visit to each institution at one year. An evaluation of cognitive function is performed by a mini-mental state (MMS) the day before the TAVI intervention and then at 1 year. The study ends after the last evaluation. A cerebral MRI is performed within 1-3 days after the TAVI procedure to detect new cerebral ischemic lesions (emboli). Blood samples will be taken during the patient's stay: the day before TAVI, during the procedure and after the TAVI procedure at day 1 and day 4. The follow-up visit to 1 year will be conducted by cardiologists or cardiac surgeons with an evaluation of the cognitive function by the mini-mental state (MMS).

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