Ocular Circulation and Chronic Ocular Ischemic Syndrome before and after Carotid Artery Revascularization Surgery.

Background. We evaluated the effect of carotid revascularization surgery on ocular circulation and chronic ocular ischemic syndrome (OIS). Methods.

[Surgical treatment of intrarcranial dural arteriovenous fistulas].

Surgical treatment is indicated in patients who present clinical symptoms for intracranial dural arteriovenous fistula and retrograde cortical venous filling on cerebral angiography. Further, surgery is indicated in those patients that cannot be cured by endovascular procedures. For dural arteriovenous fistulas in the anterior fossa, tentorium, craniovertebral junction or convex, surgery was considered as the first option.

Acute gastric dilatation causing bacterial cerebral aneurysm--case report.

Objective: Acute gastric dilatation (AGD) is a very rare entity which can sometimes be life-threatening. We report a case of a patient presenting with a rupture of a BCA during the treatment of AGD.

Method: A 24-year-old woman, who had a history of bulimia and vomiting episodes, was transferred in shock with marked abdominal distension.

Cerebral venous ischemia by dural arteriovenous fistulas.

Intracranial dural arteriovenous fistulas (AVFs) are potentially at risk for hemorrhage, and their symptoms and prognosis are highly variable. We present 7 surgical cases with the initial symptoms of venous ischemia by dural AVF. The series comprises 3 male and 4 female, ranging in age from 37 to 76 years (mean age, 61.

Effect of carotid artery stenting on ocular circulation and chronic ocular ischemic syndrome.

Background: The authors evaluated the effect of carotid artery stenting (CAS) on ocular circulation and chronic ocular ischemic syndrome.

Methods: We examined 38 patients with carotid artery stenosis (>80%) at its origin treated with CAS. Ocular circulation and symptoms were examined before, within 24 h, and 1 week, 1 month, and 3 months after CAS based on ophthalmic artery color Doppler flow imaging and ophthalmological examinations.

Predictors of outcome of surgery for cervical compressive myelopathy: retrospective analysis and prospective study.

The outcomes of surgical treatment in 80 patients with cervical compressive myelopathy were retrospectively reviewed to examined the correlations between surgical outcomes and the following seven predictive factors: age at surgery, duration of symptoms, severity of myelopathy, number of compressed segments, intramedullary high intensity segments on T(2)-weighted magnetic resonance (MR) imaging, surgical method, and the type of disease. The recovery rates were evaluated at 3 months after the surgery. Significant correlations were observed between recovery rate and duration of symptoms, severity of myelopathy, and high intensity segments on T(2)-weighted MR imaging.

Transplantation of embryonic stem cell-derived neural stem cells for spinal cord injury in adult mice.

Aims: To investigate the efficacy of embryonic stem cell-derived neural stem cells (NSCs) for spinal cord injury (SCI) in mice and whether a combination treatment with thyroid hormone provides a more effective ES cell-based therapy.

Methods: Nestin-positive NSCs were induced from undifferentiated mouse ES cells by a step-by-step culture and used as grafts. Thirty-six mice were subjected to an SCI at Th10 and divided into three groups of 12.

Postoperative hyperperfusion associated with steal phenomenon caused by a small arteriovenous malformation.

A 41-year-old woman presented with a small occipital arteriovenous malformation (AVM) manifesting as headache. Cerebral angiography showed an AVM in the right occipital lobe fed by the right temporooccipital artery and draining into the superior sagittal sinus and right transverse sinus. Single photon emission computed tomography showed the steal phenomenon in the ipsilateral temporal cortex fed by the main feeding artery preoperatively, and hyperperfusion in the same cortex after removal of the AVM.

[Extracranial vertebral artery dissection repeating distal embolism: case report].

We report a case of vertebral artery (VA) dissection presenting with repeated distal embolism. A 48-year-old man was admitted to our institution with neck pain and vertigo of two day duration. MRI on arrival showed infarction of the left cerebellar hemisphere and the right occipital lobe.

De novo basilar top aneurysm in an elderly patient treated with Guglielmi detachable coils.

Ruptured de novo aneurysms, compared with the usual subarachnoid hemorrhage, commonly occur in younger patients and are extremely rare in elderly patients. We discuss their etiology and report the case of a ruptured de novo aneurysm in a 77-year-old woman.

[Subclavian steal phenomenon complicating an upper extremity arteriovenous fistula for hemodialysis].

We report a case of 47-year-old man with subclavian steal phenomenon (SSP). He affected chronic renal failure and received an upper extremity arteriovenous fistula creation for hemodialysis. Angiography showed SSP from right vertebral artery to left subclavian artery (SA), and mild stenosis of left SA.

[A case of arteriovenous malformation associated with moyamoya phenomenon].

A case with arteriovenous malformation (AVM) associated with moyamoya phenomenon is reported. The 44 year-old female patient was presented with headache and vomiting. Computed tomography (CT) scan showed intraventricular hemorrhage.

Color Doppler flow imaging of the superior ophthalmic vein in dural arteriovenous fistulas.

Background And Purpose: This article evaluates the intracranial venous hemodynamics of dural arteriovenous fistula (DAVF) on the basis of data from color Doppler flow imaging (CDFI) findings of the superior ophthalmic vein (SOV) and discusses the clinical application of the SOV CDFI to the DAVFs.

Methods: We examined the diameter, flow direction, flow waveform, and flow velocity of the SOV using CDFI in 20 patients with intracranial DAVF. Six patients were asymptomatic; the other 14 patients were symptomatic.

Giant frontal mucocele extending into the anterior cranial fossa.

The authors report a patient with a huge frontal mucocele presenting with transient left hemiparesis. Magnetic resonance imaging and computed tomography showed the huge frontal mucocele arising from the frontal sinus extending to the anterior cranial fo ssa. Right middle cerebral artery stenosis was seen on the carotid angiography.