Transumbilical arterial embolization of a large dural arteriovenous fistula in a low-birth-weight neonate with congestive heart failure.

Purpose: The purpose of this study was to report transumbilical arterial embolization of a large dural arteriovenous fistula (AVF) in a low-birth-weight neonate with congestive heart failure (CHF).

Case Presentation: A female neonate was delivered by cesarean section at 31 weeks of gestation. Her birth weight was 1538 g and Apgar scores were 6 at both 1 and 5 min.

[Preoperative analysis of platelet aggregability in carotid surgery].

To evaluate the relationship between preoperative analysis of platelet aggregability and perioperative complications, we analyzed 42 patients who underwent carotid endarterectomy or carotid artery stenting. The effect of antiplatelet drugs was tested by whole blood aggregometry. ADP (adenosine-diphosphoric acid) and collagen were used as agonists.

Long-term follow-up of endovascular coil embolization for cerebral aneurysms using three-dimensional time-of-flight magnetic resonance angiography.

Objectives: As endovascular treatment becomes more prevalent, aneurysm recurrence from neck remnants, recanalization, incomplete obliteration and bleeding remain major concerns. In the current analysis, we attempted to identify factors related to disease progression and clinical outcome in patients treated with coil embolization.

Methods: This study included 58 patients who underwent endovascular coil embolization for treatment of intracranial aneurysm.

Recurrence of the cavernous sinus dural arteriovenous fistula at adjacent sinuses following repeated transvenous embolizations: case report and literature review.

We present a unique case of a cavernous sinus (CS) dural arteriovenous fistula (DAVF), which recurred at adjacent sinuses following repeated transvenous embolizations (TVEs). A 68-year-old woman presented with progressive left conjunctival chemosis and diplopia. Cerebral angiography revealed a left CS DAVF, which was completely obliterated by TVE via the left inferior petrosal sinus (IPS).

Tissue plasminogen activator enhances the hypoxia/reoxygenation-induced impairment of the blood-brain barrier in a primary culture of rat brain endothelial cells.

Hemorrhagic transformation is a major complication associated with tissue plasminogen activator (tPA) therapy for ischemic stroke. We studied the effect of tPA on the blood-brain barrier (BBB) function with our in vitro monolayer model generated using rat brain microvascular endothelial cells subjected either to normoxia or to hypoxia/reoxygenation (H/R) with or without the administration of tPA. The barrier function was evaluated by the transendothelial electrical resistance (TEER), the permeability of sodium fluorescein and Evans' blue-albumin (EBA), and the uptake of lucifer yellow (LY).

[Carotid artery stenting using the transbrachial approach: technical case report].

We described a case of endoluminal stent placement for cervical internal carotid artery stenosis in which access was obtained via the proximal portion of the right radial artery. A 70-year-old man with a history of arteriosclerosis obliterans presented for endoluminal revascularization of a stenosed left internal carotid artery. The transfemoral approach was not possible because of severe atherosclerosis of the bilateral common iliac arteries.

Giant thrombosed fusiform aneurysm at the basilar trunk successfully treated with endovascular coil occlusion following bypass surgery: a case report and review of the literature.

Objective: Giant fusiform aneurysms at the basilar trunk tend to have a poor natural history, and the surgical management for these aneurysms remains controversial. For these aneurysms, basilar trunk occlusion may offer a potentially long-lasting cure. However, the strategy for these aneurysms is difficult when the collateral supply from the carotid circulation is poor.

[A case of carotid occlusive disease treated with stenting for recurrence of stenosis: strategy on intolerance to temporary occlusion].

Carotid artery stenting has emerged as an acceptable treatment alternative in patient with occlusive carotid bifurcation disease. High-risk surgical candidates have a lower rate of morbidity after carotid artery stenting with distal embolic protection. Among distal protection devices, a Guardwire balloon occlusion is the most frequently employed in Japan.

[A case of a vertebral artery fusiform aneurysm treated with stent assisted coil embolization: technique to prevent coil migration].

Placement of a stent over the aneurysm neck and secondary coil embolization prevents coil migration and allows attenuated packing of the coils. However, during the course of the embolization, coils project over and obscure the parent vessel. Here we report a novel technique for endovascular parent vessel reconstruction with aneurysm embolization.