Abstract
We report on an 80-year-old hypertensive patient with a left-sided high-grade carotid stenosis who developed transient monoparesis of the right arm after stenting of the carotid artery. Computed tomography (CT) of the brain (cranial CT) performed immediately after the symptomatic had begun showed a linear hyperdensity in the ipsilateral, precentral sulcus with a moderate, local brain swelling and edema. Transcranial doppler sonography revealed an accelerated post-interventional systolic blood flow velocity and in the ipsilateral medial cerebral artery compared to the preoperative value and an increased cerebral blood flow, so that the diagnosis of hyperperfusion syndrome with a subpial hematoma was confirmed. After strict blood pressure control and -reduction the neurological deficit regressed gradually and the hyperdensity had completely disappeared in control CCT after 15 h.
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