Monocentric Retrospective Cohort Study of the Impact of Advanced Nursing Practice on the Follow-up of the End Stage Chronic Renal Disease Patient

To this end, a study of the practices and social representations of healthcare professionals involved in the management of Chronic Kidney Disease (CKD) patients can allow us to - To explore current practices under the focus of follow-up by a nephrologist and an advanced nurse on access to renal transplantation and on the implementation of arteriovenous fistula (AVF) versus follow-up by a nephrologist only. * To perceive the "reading grids" that health professionals in transplant centers assign to the management of this type of patient by an Advanced Practice Nurse (APN). * To question the identity issues associated with the actors by taking into account their status and roles in the institution and in interdisciplinaritý. This study should produce initial results on the changes induced by advanced nursing practice on access to care and on the improvement of complex care pathways and more particularly for the Chronic Kidney Disease (CKD) patient.