Article

Carotid intraplaque hemorrhage predicts recurrent symptoms in patients with high-grade carotid stenosis.

Department of Academic Radiology, University of Nottingham, Queen's Medical Centre, Nottingham, UK.
Stroke (Impact Factor: 6.02). 06/2007; 38(5):1633-5. DOI: 10.1161/STROKEAHA.106.473066
Source: PubMed

ABSTRACT Carotid intraplaque hemorrhage (IPH), known to be associated with plaque instability, may convey a higher stroke risk. The aim of this study was to assess whether the identification of IPH by MRI predicts recurrent clinical cerebrovascular events.
Sixty-six patients with high-grade symptomatic carotid stenosis underwent MRI of the carotid arteries and were followed until carotid endarterectomy or 30 days.
Of the 66 patients with a median follow up of 33.5 days, 44 (66.7%) were found on MRI to have ipsilateral carotid IPH. Fifteen recurrent events were associated with ipsilateral carotid IPH. Only 2 recurrent events occurred in the absence of IPH. IPH increased the risk of recurrent ischemia (hazard ratio=4.8; 95% CI=1.1 to 20.9, P<0.05).
IPH as detected by MRI predicts recurrent cerebrovascular events in patients with symptomatic high-grade carotid stenosis.

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