When has service provision for transient ischaemic attack improved enough? A discrete event simulation economic modelling study.

Objectives: The aim of this study was to examine the impact of transient ischaemic attack (TIA) service modification in two hospitals on costs and clinical outcomes.

Design: Discrete event simulation model using data from routine electronic health records from 2011.

Participants: Patients with suspected TIA were followed from symptom onset to presentation, referral to specialist clinics, treatment and subsequent stroke.