Treatment Recommendations to Reduce Stroke Risk After TIA

Antiplatelet Therapy for Noncardioembolic TIA

The American Heart Association recommends daily long-term antiplatelet therapy to be prescribed immediately for secondary prevention of stroke in patients with noncardioembolic TIA 1
The American College of Cardiology suggests that the combination of aspirin (50mg) and sustained-release dipyridamole (200mg twice daily) is a reasonable first choice to reduce stroke risk 1, 2
The American Stroke Association recommends clopidogrel (75mg daily) as an appropriate alternative to aspirin alone in preventing further vascular events 1, 2
Aspirin (50 to 325 mg/day) is an acceptable initial therapy option, particularly when cost or tolerance is a concern, according to the American Heart Association 2

The American College of Cardiology recommends long-term oral anticoagulation with a target INR of 2.5 (range 2.0-3.0) for patients with persistent or paroxysmal atrial fibrillation who have had a cardioembolic TIA 1
The American Heart Association suggests aspirin (325mg/day) or clopidogrel (75mg) if aspirin intolerant, for patients with nonvalvular atrial fibrillation only if oral anticoagulation cannot be administered 1
The American Stroke Association recommends oral anticoagulants with an INR target of 3.0 (range 2.5-3.5) for patients with mechanical prosthetic heart valves who have had a TIA 3

The American Heart Association recommends blood pressure-lowering medication to be started after TIA unless the patient has symptomatic hypotension, with a target blood pressure of <140/90 mmHg or <130/80 mmHg for diabetics 4
The American College of Cardiology suggests an angiotensin-converting enzyme (ACE) inhibitor alone or in combination with a diuretic, or an angiotensin receptor blocker for blood pressure control 4

The American Heart Association strongly encourages smoking cessation for all smokers 4
The American College of Cardiology recommends weight reduction for patients with BMI >25 (especially >30) 4
Regular physical activity (at least 10 minutes of exercise 3-4 times/week) is generally recommended by the American Heart Association 4
Reduction of salt intake is generally recommended by the American College of Cardiology 4

The choice between antiplatelet options should consider comorbidities, side effects, and cost, according to the American Stroke Association 2
Aspirin is less expensive, which may affect long-term adherence, as noted by the American Heart Association 2
The American College of Cardiology recommends initiating antiplatelet therapy immediately after TIA diagnosis 1
For blood pressure medications, it is usually advisable to wait 7-14 days before starting treatment, according to the American Heart Association 4

The American Stroke Association notes that oral anticoagulation is not recommended for noncardioembolic TIA as there is no documented evidence of higher benefit compared to antiplatelet therapy, while the risk for cerebral hemorrhagic complications is higher 1
The American College of Cardiology warns that the combination of aspirin and clopidogrel increases bleeding risk and is not routinely recommended for long-term therapy 2
The American Heart Association notes that for patients who have a TIA while taking aspirin, there is no evidence that increasing the aspirin dose provides additional benefit 5
Hormone replacement therapy may be harmful for secondary stroke prevention in postmenopausal women, according to the American College of Cardiology 4