Ipsilateral hypoperfusion caused by intracerebral steal phenomenon after carotid artery stenting: a case report

Author:

Yan Zhizhong,Shi Zhonghua,Wang Yuhai,Zhang Chunlei,Liu Huize,Cai Jin,Zhang Xin

Abstract

Abstract Background Abnormal hypoperfusion on the surgical side after carotid artery stenting is rare. Neurological deterioration caused by it is deceptive, which can easily lead to misdiagnosis. The mechanism of hypoperfusion has rarely been demonstrated. We present here a fully studied case with a high probability of intracerebral steal phenomenon. Case presentation A 68-year-old male with severe right internal carotid artery stenosis and left internal carotid artery occlusion underwent right stenosis stent implantation. Restlessness and left limb hemiplegia occurred within 24 h after the procedure, which was similar to hyperperfusion syndrome. However, postoperative computerized tomography perfusion (CTP) revealed abnormal hypoperfusion in the right hemisphere. Transcranial Doppler (TCD) also showed decreased flow velocity in the right middle cerebral artery, and increased flow velocity in the right anterior cerebral artery. We considered that intracerebral steal phenomenon might be the cause, then hypervolemic therapy was accepted and the symptoms completely resolved after 3 days. Conclusions Ipsilateral hypoperfusion is rarely seen after carotid artery stenting. Intracerebral steal phenomenon may be the underlying mechanism. CTP or TCD is helpful for the early detection of this adverse event.

Funder

Young Scientists Fund

Publisher

Springer Science and Business Media LLC

Subject

Neurology (clinical),General Medicine

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