Positional vertebral artery recanalization during neck flexion causing recurrent ischemic stroke.

Takahiro Kitahara, Shimpei Aoyama, Makoto Hayase, Sadaharu Torikoshi, Masaki Nishimura

Abstract readCase Reports

In one paragraph

Article in Radiology case reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 authors.

Takahiro KitaharaDepartment of Neurosurgery, Japanese Red Cross Fukui Hospital, Tsukimi 2-4-1, Fukui 918-8501, Japan.

Shimpei AoyamaDepartment of Neurosurgery, Japanese Red Cross Fukui Hospital, Tsukimi 2-4-1, Fukui 918-8501, Japan.

Makoto HayaseDepartment of Neurosurgery, Japanese Red Cross Fukui Hospital, Tsukimi 2-4-1, Fukui 918-8501, Japan.

Sadaharu TorikoshiDepartment of Neurosurgery, Japanese Red Cross Fukui Hospital, Tsukimi 2-4-1, Fukui 918-8501, Japan.

Masaki NishimuraDepartment of Neurosurgery, Japanese Red Cross Fukui Hospital, Tsukimi 2-4-1, Fukui 918-8501, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Positional vertebral artery (VA) occlusion is an uncommon etiology of ischemic stroke in the posterior circulation, in which the VA is reversibly occluded due to the neck posture. We present a unique case of positional VA recanalization in which the VA was occluded in the neutral neck position and recanalized by neck flexion. A 70-year-old male presented with repeated cerebral infarction in the posterior circulation. In the neutral position, the patient's left VA was occluded due to the compression by an osteophyte of the C5 vertebral body. However, dynamic cerebral angiography revealed the recanalization of the left VA in the neck flexed posture. The patient remains free from ischemic events 2 years after the initiation of warfarin administration. Positional VA recanalization in which the affected VA is occluded in the neutral position is rare. Dynamic evaluation is important for recurrent ischemic stroke in the posterior circulation, even when VA is occluded in the neutral position.

Indexed as

Dynamic angiographyIschemic strokeOsteophyteVertebral arteryWarfarin

Identifiers

PMID40528914

DOI10.1016/j.radcr.2025.05.031

PMCPMC12171744

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