The event itself is over within minutes or hours and does not deteriorate. What can worsen is the risk it was signalling, and that risk is highest in the first days afterwards. So the question that matters is not whether the TIA progresses but whether the underlying mechanism is being treated.
The event itself is over within minutes or hours and does not deteriorate. What can worsen is the risk it was signalling, and that risk is highest in the first days afterwards. So the question that matters is not whether the TIA progresses but whether the underlying mechanism is being treated.
Stroke risk after a transient ischemic attack is front-loaded. It is concentrated in the first days and remains elevated for weeks before settling towards a lower long-term level. That shape is the entire argument for urgent rather than routine assessment, and it is the opposite of how most people intuitively treat an episode that has already resolved. Clinical risk-stratification tools exist and are used to prioritise, but the practical rule does not need one: a transient ischemic attack is assessed now, not next month.
Several features raise it materially. Significant narrowing of a carotid artery on the side matching the symptoms. Atrial fibrillation, which is often intermittent and easily missed on a single tracing. More than one event, particularly several within a short period, which is a genuinely urgent situation. Longer-lasting or motor and speech symptoms rather than brief sensory ones. Poorly controlled blood pressure, diabetes and smoking. These are what the assessment is looking for, because each has a different treatment.
Recurrent transient ischemic attacks, especially several in days, indicate an active and untreated mechanism and should be treated as an emergency rather than as a pattern to monitor. The commonest explanations are a tight carotid stenosis throwing repeated emboli and an arrhythmia that has not been captured. Symptoms that are stereotyped, meaning identical each time, point towards a fixed arterial cause. This is the situation in which waiting for a scheduled appointment does real harm.
Treated appropriately, long-term risk falls substantially, and the reduction comes from unglamorous measures applied consistently: blood pressure control, which does more at population level than anything else; the right antithrombotic for the mechanism, which differs between atrial fibrillation and arterial disease; lipid lowering; glucose control; stopping smoking; treating sleep apnoea. Carotid ultrasound, MRI and CT are arranged at an imaging centre or hospital. Transcranial Doppler is performed in the office.
Clinical Neurology Specialists has been physician-owned since 1998, when Leo Germin, M.D., FAANEM founded it. Five board-certified neurologists and four advanced practice providers see patients at the Las Vegas and Henderson offices, each with its own AANEM-accredited electrodiagnostic laboratory.
Clinical Neurology Specialists is an adult outpatient neurology practice for patients 18 and older. The practice performs no surgery and operates no imaging suite, infusion suite or interventional pain programme, and provides no emergency or inpatient care.
Physician-reviewed. Reviewed by the physicians of Clinical Neurology Specialists — board-certified neurologists, AANEM-accredited electrodiagnostic laboratories, physician-owned since 1998. Reviewed 1 August 2026. This article is general education for adults 18 and older and is not a substitute for a consultation.
Sources and further reading: MedlinePlus: carotid artery disease; National Institute of Neurological Disorders and Stroke; American Academy of Neurology.
Adults 18 and older, at the Las Vegas and Henderson offices. Call 702-804-1212 or request an appointment online.