In-Stent Restenosis of Carotid and Vertebral Arteries Treated by Angioplasty Using a Cutting Balloon: A Case Report.

Objective: We treated a patient with internal carotid artery and vertebral artery ostium in-stent restenosis (ISR) treated by cutting balloon (CB) angioplasty.

Case Presentation: A 79-year-old man developed dizziness and right homonymous upper quadrantanopia. On arrival, magnetic resonance imaging (MRI) revealed acute-stage brain infarction.

Treatment Strategies for Basilar Top Syndrome Caused by Acute Vertebral Artery Occlusion.

Objective: We report a patient with basilar artery embolism caused by vertebral artery stenosis who was successfully treated using simultaneous percutaneous transluminal angioplasty (PTA) and mechanical thrombectomy.

Case Presentation: A 64-year-old male, who had undergone medical treatment for cerebellum infarction at another hospital, was referred to our hospital due to disturbance of consciousness. Angiography revealed acute occlusion of the first part of the right vertebral artery and an embolism of the top of basilar artery.

[Internal Carotid Artery-Cavernous Sinus Fistula in a Patient with Masked Hypertension Caused by Bilateral Subclavian Artery Stenosis:A Case Report].

We herein report a case of direct carotid-cavernous fistula(direct CCF)in a patient with masked hypertension caused by bilateral subclavian artery stenosis. A 74-year-old woman presented with headache, right-sided proptosis, double vision, and pulsatile tinnitus since past 10 days. The patient was diagnosed with direct CCF.

Recurrent Embolic Stroke Caused by Large Cavernous Carotid Aneurysm: Stroke Recurrence Prevention with High-Flow Bypass Followed by Proximal Occlusion.

Intracranial aneurysms may cause embolic stroke. Medical or surgical management is selected on an individual basis, as the optimal treatment strategy has not been established. A 79-year-old woman with a large cavernous carotid aneurysm suffered repeated embolic stroke after enlargement and partial thrombosis of the aneurysm, in spite of antiplatelet therapy.

Swine model of in-stent stenosis in the iliac artery evaluating the serial time course.

The aim of this study was to propose a new animal model evaluating the serial time course of in-stent stenosis by repeated carotid artery catheterization in the same animal. 16 bare-metal stents were implanted in the normal external and internal iliac artery of 8 miniature pigs. Repeated measurements were performed in the same animal every 2 weeks for 12 weeks through carotid artery catheterization.

Stent-assisted Coiling for Ruptured Basilar Artery Dissecting Aneurysms: An Initial Experience of Four Cases.

No treatment strategy has been established for subarachnoid hemorrhages due to basilar artery (BA) trunk dissecting aneurysms. Our aim was to report our initial experience performing stent-assisted coiling (SAC) for ruptured BA dissecting aneurysms to validate the effectiveness of this treatment. We experienced four consecutive cases of ruptured dissecting BA trunk aneurysm treated with SAC between 2008 and 2014 at three institutions.

Clot-clearance rate in the sylvian cistern is associated with the severity of cerebral vasospasm after subarachnoid hemorrhage.

Rapid clot removal and clearance has been proposed as an effective tool for preventing cerebral vasospasm after subarachnoid hemorrhage (SAH). We examined the relationship between clot-clearance rate and the severity of cerebral vasospasm in 110 consecutive patients with aneurysmal SAH. We measured clot-clearance rates per day in the basal and Sylvian cisterns, and evaluated the presence of symptomatic vasospasm based on changes in clinical symptoms and the appearance of a new low-density area on a computed tomography (CT) scan.

Staged surgical treatment for symptomatic vertebrobasilar artery stenosis: combined treatment with endovascular angioplasty and bypass surgery.

Objective: Because the early risk of stroke recurrence in patients with posterior circulation infarctions is high, patients with vertebrobasilar events require active preventive treatment. Previous reports have described the use of balloon angioplasty and stenting or surgical revascularization to the vertebrobasilar artery area. To compensate for the disadvantages of these techniques, we combined endovascular and surgical treatments in a patient with symptomatic vertebrobasilar artery stenosis.

Successful treatment of cerebral hemorrhage using computed tomography angiography in a patient with left-ventricular-assist device.

Cerebral hemorrhage is one of the common complications associated with left-ventricular-assist device (LVAD) treatment and leads to a high mortality rate because of excessive bleeding due to frequently unknown causes. Cerebral angiography is used to diagnose cerebrovascular events and is well recognized as being very useful for this purpose. We performed a cerebral angiography for a patient with an LVAD who developed cerebral hemorrhage, and the hemorrhagic source was clearly identified.

The use of 3D computer graphics in the diagnosis and treatment of spinal vascular malformations.

Object: Digital subtraction (DS) angiography is the gold standard for diagnosing spinal vascular malformations. Recently, multidetectorrow spiral CT and contrast-enhanced MR angiography have been introduced as screening examinations before DS angiography. These methods, however, do not always determine the accurate location of an arteriovenous shunt because the resulting images lack information about the spinal cord or the dura mater.

Treatment of a cervical carotid pseudoaneurysm that occurred years after laryngectomy and irradiation of a neck tumor.

A 62-year-old man presented with rupture of a pseudoaneurysm of the left common carotid artery (CCA) that was induced after radiation therapy and neck surgery. The initial treatment was an endovascular procedure to obliterate the aneurysm with coils, and a covered stent was placed in the parent artery. However, the patient presented with subsequent coil migration, wound infection, and left CCA stenosis.

Diagnosis of Eagle syndrome with 3-dimensional angiography and near-infrared spectroscopy: case report.

Background And Importance: Elongated styloid processes sometimes compress the cervical carotid artery, causing transient ischemic attacks. Most patients with Eagle syndrome who experience transient ischemic attacks have bilateral elongated styloid processes; therefore, it is necessary to determine which side is causing the Eagle syndrome to treat it. This is the first report of the usefulness of 3-dimensional angiography and near-infrared spectroscopy (NIRS) for the diagnosis of Eagle syndrome.

Vegetative propagation and its possible role as a genetic bottleneck in the shaping of the apple fruit crinkle viroid populations in apple and hop plants.

Apple fruit crinkle viroid (AFCVd) infects apples and hops. To analyze the genetic diversity of AFCVd, nine apple and six hop isolates were collected from several locations in Japan. In total, 76 independent cDNA clones were used for sequencing and phylogenetic analyses.

Lymphoplasmacyte-rich meningioma with atypical invasive nature.

A 12-year-old boy presented with a lymphoplasmacyte-rich (LPR) meningioma in the posterior fossa. The tumor was subtotally removed. Histological examination showed the tumor had invaded the normal brain tissue despite its benign grade in the World Health Organization classification.

Urgent treatment of severe subarachnoid hemorrhage caused by ruptured traumatic aneurysm of the cavernous internal carotid artery using coil embolization followed by superficial temporal artery-middle cerebral artery anastomosis: a case report.

Background: Traumatic aneurysm of the cavernous internal carotid artery (ICA) with extension into the subarachnoid space is associated with increased risk of fatality especially when it is accompanied by severe subarachnoid hemorrhage (SAH). Only cases of patients who survived the acute stage and who were treated in a delayed setting have been reported. There has been no successfully treated case immediately after an injury.

Endovascular treatment with coils of 149 middle cerebral artery berry aneurysms.

Purpose: To retrospectively evaluate the immediate and long-term clinical results, as well as the angiographic results, of occlusion of middle cerebral artery (MCA) berry aneurysms with coils.

Materials And Methods: This retrospective study had institutional review board approval, and informed consent was obtained. One hundred fifty-four MCA aneurysms in 142 patients were intended to be treated.

Increasing the packing of small aneurysms with complex-shaped coils: an in vitro study.

Nine embolization experiments of a silicone aneurysm model were conducted by using helical and complex-shaped coils. Coils were introduced up to the point when the adjunct of a supplementary coil caused protrusion into the parent vessel. Packing ratios (volume of coils-aneurysm volume) ranged between 31% and 38%.