Publications by authors named "Atsumu Hashimoto"
Article Synopsis
- The occipital artery (OA) is crucial for posterior fossa procedures but is challenging to harvest due to its location between suboccipital muscles.
- A study analyzed the OA's running patterns in 162 patients, revealing two main anatomical variations: medial and lateral patterns.
- Preoperative CT scans are effective for identifying OA pathways, which is essential for safe harvesting, especially since the lateral pattern poses a higher risk of injury to the artery.
Intraorbital dural arteriovenous fistula(dAVF)is a very rare disease; therefore, an optimal treatment strategy has not yet been established. Here, we describe a case of successful dAVF treatment by performing transarterial embolization(TAE)with n-butyl-2-cyanoacrylate(NBCA). A 66-year-old male presented with right conjunctival injection, with no history of trauma.
View Article and Find Full Text PDFBackground: Contrary to expectations, some patients with poor-grade subarachnoid hemorrhage (SAH) show favorable outcomes. However, the factors predictive of good prognosis are unclear. The purposes of this study were to identify factors related to poor-grade SAH and to analyze preoperative prognostic factors.
View Article and Find Full Text PDFObjective: Surgical or endovascular treatment for giant or complex aneurysms is challenging. The aims of this study were to evaluate clinical outcomes and factors affecting the prognosis of giant or complex aneurysms and to better establish the role of microsurgery in the management strategy.
Methods: One hundred fifty-nine patients with surgically treated complex aneurysms were included.
Background: A subarachnoid clot is the strongest predictor of cerebral vasospasm. Our purpose was to analyze the relationship between the number of postoperative cisternal clots and cerebral vasospasm and to assess the efficacy of surgical clot removal.
Methods: The subjects were 158 patients with aneurysmal subarachnoid hemorrhage.
A nearly 80-year-old man with a history of radiotherapy (RT) and total laryngectomy for laryngeal cancer 25 years previously presented with a rapidly growing mass on the right side of his neck. A huge pseudoaneurysm (pseudoAN) was detected at the right carotid bifurcation, though angiography performed four years previously had shown total occlusion of the internal carotid artery. Stent-assisted coil embolization enabled aneurysm sac shrinkage.
View Article and Find Full Text PDFObjectives: The acetazolamide challenge test in conjunction with I-IMP single-photon emission computed tomography (SPECT) is a known method of assessing cerebrovascular reserve capacity. In this study, we investigated whether CT perfusion in combination with resting state I-IMP SPECT could be used instead of the acetazolamide challenge test to evaluate hemodynamic compromise in patients with atherosclerotic occlusive disease.
Methods: Twenty consecutive patients with unilateral internal carotid artery or middle cerebral artery steno-occlusive disease were enrolled.