Determinants of Patient Delay in Transient Ischemic Attack

Early diagnosis and stroke preventive treatment in patients with transient ischemic attack (TIA) are crucial, but hampered by delayed reporting of symptoms. Previous studies on causes of patient delay provided inconsistent results. We aimed to assess determinants of patient delay among patients with symptoms suggestive of TIA.

We interviewed participants referred by their general practitioner to an outpatient TIA clinic within 72 h from symptom onset. We determined (i) the exact time from symptom onset to the first contact with a medical service (patient delay); (ii) demographic and clinical characteristics; (iii) patient's initial perception, and reaction to symptoms; and (iv) patient's knowledge about TIA. We used multivariable linear regression to identify determinants of patient delay.

We interviewed 202 suspected TIA patients (mean age 67.7 (SD 13.7) years, 111 (55.0%) male), of whom 123 (60.9%) received a definite diagnosis of TIA or minor stroke. Median patient delay was 1.5 (interquartile range 0.4-14.6) hours. Of all patients, 119 (58.9%) considered a TIA (or stroke) as the cause of their symptoms. Among them, 30 (25.2%) thought it was a medical emergency, while of the 83 not considering TIA as the cause of symptoms 38 (45.8%) thought of a medical emergency. Independently related to increased delay were (i) symptom onset out of hours, (ii) absence of dysarthria, (iii) being unaware that TIA requires urgent treatment, (iv) not considering the event an emergency, and (v) knowledge of TIA symptoms. Results for patients with a definite diagnosis of TIA/minor stroke were similar to those with alternative diagnoses.

Patients still tend to wait till office hours to report TIA symptoms. Speech difficulties, and specifically dysarthria, are related to shorter delay. To reduce patient delay, awareness of TIA symptoms should increase and more importantly lay people should be educated to consider a TIA an emergency.