Treatment of MRI negative transient neurological events. Question Title * 1. Where in the world do you practice? Europe North America Asia Australasia South America Question Title * 2. How many years have you been in clinical practice? Still in training 0-1 years 2-5 years 5-9 years 10+ years Question Title * 3. In an average work week how often do you see patients who have had a TIA presentation (transient symptoms with resolution within 24-hours)? Several patients per week At least one patient per week One patient every second week One patient every month Rarely Question Title * 4. How often would you order a brain MRI for them? All or nearly all patients Half the patients depending upon clinical presentation Uncommonly Never Question Title * 5. At your centre, can you routinely obtain MR with DWI within 1 week of their event? Yes No Sometimes Question Title * 6. At your centre, can you routinely obtain MR with DWI within 2 weeks of their event? Yes No Sometimes Question Title * 7. If they have a DWI-negative MR scan AND based upon your clinical evaluation, you thought the most probable diagnosis was true ischemia (ie. a true TIA), with no other indication for antithrombotics, would you treat long term (ie after the first few weeks) with antiplatelet agents? DAPT for 3-4 weeks followed by single antiplatelet agent Single antiplatelet agent I would not treat with antiplatelets with a DWI-negative scan I am uncertain Question Title * 8. If they have a DWI-negative MR scan AND based upon your clinical evaluation, you thought that there was at least a 50% chance that the diagnosis was a mimic (ie. there is diagnostic uncertainty), with no other indication for antithrombotics, would you treat long term (ie after the first few weeks) with antiplatelet agents? DAPT for 3-4 weeks followed by single antiplatelet agent Single antiplatelet agent I would not treat with antiplatelets with a DWI-negative scan I am uncertain Question Title * 9. Would you be willing to randomize a patient with a DWI negative MRI and transient neurological symptoms with no other indication for antithrombotics to long term single-antiplatelet agents vs. no antithrombotic agent? Yes No Sometimes Done