Spontaneous Carotid Dissection

Rob Orman, MD and Alan Sielaff, MD

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The summary below is from an episode of ERcast: Clinical Perspectives

Spontaneous carotid and vertebral artery dissection can present as isolated facial pain, headache, or neck pain with a completely normal neurologic exam. In younger patients, cervical artery dissection accounts for up to 25% of strokes, and the miss often starts with false reassurance from reproducible tenderness or a familiar migraine story.

Spontaneous Cervical Artery Dissection

Normal exam false reassurance: Cervical artery dissection may look benign at first: normal vitals, normal neuro exam, and even focal TMJ or trapezius tenderness do not exclude a dangerous carotid or vertebral lesion.
Pain-only presentation pattern: Unilateral headache, facial pain, or neck pain are common presenting symptoms, and embolic complications may be delayed rather than obvious on the first ED visit.
High-yield associated clues: Partial Horner syndrome, pulsatile tinnitus, cranial or cervical neuropathy, and posterior-circulation findings like Wallenberg syndrome should sharply raise suspicion.
Younger stroke epidemiology: Up to 25% of strokes in younger patients are linked to cervical artery dissection, with higher prevalence in connective-tissue disease, pregnancy or postpartum state, smoking, and even minor neck torque. We get into the easy-to-overlook triggers in the episode.
Imaging test selection: CTA and MRA are both used for diagnosis; some radiologists favor CTA for vertebral artery evaluation, while carotid imaging is often reasonable with either modality.
Initial antithrombotic approach: Aspirin is standard treatment for most uncomplicated cases, while dual antiplatelet therapy adds bleeding risk without clear routine benefit in the usual presentation.

Subscribe to ERcast: Clinical Perspectives to listen to the episode.

References:

Robertson JJ, Koyfman A. Extracranial Cervical Artery Dissections. Emerg Med Clin North Am. 2017 Nov;35(4):727-741. PMID: 28987426.
Caplan, A., and A. Sharma. "Stop Yelling: A Rare Cause of Internal Carotid Artery Dissection (ICAD) in a Young Professional." Ann Stroke Vasc Neurol 1.1 (2020): 1002.
Hakimi, Ryan, and Sanjeev Sivakumar. "Imaging of carotid dissection." Current pain and headache reports 23.1 (2019): 2.
Popp, Daniel, et al. "Modified Split-Scan Computed Tomography (CT) Diagnostics of Severely Injured Patients: First Results from a Level I Trauma Center Using a Dedicated Head-and-Neck CT-Angiogram for the Detection of Cervical Artery Dissections." Journal of Clinical Medicine 9.8 (2020): 2568.
Nebelsieck J, Sengelhoff C, Nassenstein I, et al. Sensitivity of neurovascular ultrasound for the detection of spontaneous cervical artery dissection. J Clin Neurosci. 2009;16(1):79-82. doi:10.1016/j.jocn.2008.04.005
Benninger, D. H., and Ralf W. Baumgartner. "Ultrasound diagnosis of cervical artery dissection." Handbook on Neurovascular Ultrasound 21 (2006): 70-84.
Dittrich, R., et al. "Negative ultrasound findings in patients with cervical artery dissection." Journal of neurology 253.4 (2006): 424-433.

Faculty

Rob Orman, MD
Dr. Rob Orman is an emergency physician, educator, and executive coach specializing in physician performance and professional fulfillment. After more than 20 years in community emergency medicine, he now works with clinicians across specialties to address burnout, inefficiency, and career challenges. He earned his medical degree from Emory University School of Medicine and completed his residency at Denver Health Medical Center, where he served as chief resident. Dr. Orman is the founder of the Stimulus podcast and Orman Physician Coaching. He previously served as chief editor of ERcast and hosted Essentials of Emergency Medicine for nearly a decade.
Alan Sielaff, MD