Author

Hitoshi Yamahata

3 papers indexed here

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Case report Open access Sep 2026

Staged Endovascular Treatment With Stent-Assisted Coiling Followed by Flow Diversion for Ruptured Intracranial Dissecting Aneurysms: A Report of Two Cases

Ruptured intracranial dissecting aneurysms are challenging to treat when parent artery sacrifice is unsuitable or technically difficult. Although flow diverters (FDs) enable definitive arterial reconstruction, their use during acute subarachnoid hemorrhage is complicated by the need for dual antiplatelet therapy. We re...

Yushi Nagano, Jun Sugata, Takuichiro Higashi et al. · Cureus · 0 citations

Open access Oct 2026

Intraventricular black fungal hyphal masses caused by Cladophialophora bantiana: illustrative case

BACKGROUND CNS fungal infections are rare, life-threatening conditions primarily affecting immunocompromised hosts. While they typically present as brain abscesses, intraventricular proliferation of fungal hyphae is exceedingly rare, and its neuroendoscopic findings have seldom been reported. OBSERVATIONS A man in his...

Hironori Saito, Ryutaro Makino, Hajime Yonezawa et al. · Journal of Neurosurgery: Cas... · 0 citations

Review Open access Sep 2026

Clinical characteristics of postoperative anterior arch fracture of the atlas following C1 laminectomy: 14-year experience of a single neurosurgical center

ABSTRACT Objective: Postoperative anterior arch fracture of the atlas (PAFA) is a rare but increasingly recognized complication of C1 laminectomy. However, the pathophysiology remains poorly understood. We retrospectively investigated the incidence of PAFA and associated risk factors. Methods: We retrospectively review...

Yushi Nagano, Hitoshi Yamahata, Masanori Yonenaga et al. · Journal of Craniovertebral J... · 0 citations