Atrial Fibrillation in Transient Ischaemic Attack Versus Ischaemic Stroke
Compared with ischaemic stroke (IS), the association of atrial fibrillation (AF) with transient ischaemic attack (TIA) is less well established. The authors of this study (Stroke,December 2016) aimed to assess the proportion of AF in patients with TIA, and these patients’ characteristics and secondary preventive treatment in comparison to patients with IS.
Hospital-based data on TIA and IS events, registered from July 2011 to June 2013, were obtained from the Swedish Stroke Register (Riksstroke). A time-based TIA definition (duration of symptoms <24 hours) was applied. AF was registered as present when previously known or diagnosed at the time of assessment.
The study concluded that AF is highly prevalent not only in IS but also in TIA patients, with proportions steeply increasing with age. In both TIA and IS, a substantial proportion of patients with AF were discharged without anticoagulant therapy.