Protocolo de evaluación de la extensión y la actividad en las vasculitis de mediano y gran calibre

This protocol addresses the assessment of the extent and monitoring of the activity of major medium- and large-caliber vasculitides, such as polyarteritis nodosa, giant cell arteritis, and Takayasu's arteritis. These autoimmune diseases affect multiple organs and require differentiation between inflammatory activity and irreversible damage in order to guide treatment. Monitoring is performed by combining clinical, analytical, and imaging parameters. Regular follow-up is essential to detect relapses or disease progression as well as to assess long-term vascular damage. The imaging techniques of choice for each type of vasculitis and the most current recommendations on when and how often to use them are described.