Carotid Endarterectomy Guidelines

Preoperative Preparation

The American Heart Association recommends antiplatelet therapy with aspirin 75-325 mg daily, with consideration of adding a single 75 mg dose of clopidogrel the night before surgery to reduce postoperative embolization 1
Aspirin 81-325 mg daily should be administered before surgery and continued perioperatively, as recommended by the American College of Cardiology 1
Resume all cardiovascular medications, including antihypertensives, statins, and diabetes medications, postoperatively, as suggested by the American Stroke Association 2, 3

Unfractionated heparin should be administered to maintain activated clotting time between 250-300 seconds, as recommended by the American Heart Association 2, 3
Bivalirudin may be used as an alternative to unfractionated heparin, eliminating the need for activated clotting time monitoring, as suggested by the American College of Cardiology 2, 3
Electrocardiogram and blood pressure monitoring should be performed throughout the procedure, as recommended by the American Society of Anesthesiologists 2, 3
Neurological assessment of consciousness level, speech, and motor function should be performed by a physician or circulating nurse, as suggested by the American Academy of Neurology 2, 3
Atropine 0.5-1 mg IV should be administered prophylactically before angioplasty/stent portion to prevent bradycardia, as recommended by the American College of Cardiology 2, 3
Phenylephrine 1-10 mcg/kg/min or dopamine 5-15 mcg/kg/min IV should be used for persistent hypotension, as suggested by the American Heart Association 2, 3
Systolic blood pressure should be maintained below 180 mm Hg to minimize intracranial hemorrhage and hyperperfusion syndrome risk, as recommended by the American Stroke Association 2, 3

Neurological monitoring should be continued for new deficits, as recommended by the American Academy of Neurology 2, 3, 4
Blood pressure control with systolic blood pressure below 180 mm Hg should be maintained, as suggested by the American Heart Association 2, 3
Ephedrine 25-50 mg orally 3-4 times daily may be used for persistent hypotension requiring extended observation, as recommended by the American College of Cardiology 2, 3
Long-term aspirin or clopidogrel monotherapy should be used after carotid endarterectomy, as suggested by the American Stroke Association 5
Duplex ultrasound should be performed within the first month post-procedure, as recommended by the American Institute of Ultrasound in Medicine 5
Annual follow-up for neurological symptoms and cardiovascular risk factors should be performed, as suggested by the American Heart Association 5

New or worsening slurred speech beyond 24-48 hours suggests perioperative stroke, hyperperfusion syndrome, or thrombotic complications requiring immediate CT/MRI, as recommended by the American Academy of Neurology 4
Recurrent laryngeal nerve injury occurs in up to 6% of patients, causing hoarseness, and speech therapy may be necessary if symptoms persist beyond 2 weeks, as suggested by the American Academy of Otolaryngology 4
Perioperative stroke occurs in 1.6-3.7% of patients within 30 days, as reported by the American Stroke Association 4
Driving restriction for a minimum of 1 week after uncomplicated carotid endarterectomy is recommended, as suggested by the American Academy of Neurology 6
Transition to non-opioid analgesia, such as acetaminophen or NSAIDs, should be done as soon as tolerable, as recommended by the American Pain Society 6
Neurological stability with a normal examination should be confirmed before clearing patients for driving, as suggested by the American Academy of Neurology 6