Assessment of disease activity and progression in Takayasu's arteritis with Disease Extent Index-Takayasu

Abstract

Objective. Disease Extent Index-Takayasu (DEI.Tak) is a new index developed for the follow-up of Takayasu's arteritis ( TA), assessing only clinical findings without the requirement of imaging. We investigated the effectiveness of DEI.Tak in assessing disease activity and progression by comparing with physician's global assessment ( PGA) and active disease criteria defined by Kerr et al.