Mechanical Thrombectomy for Acute Ischemic Stroke Caused by Prosthetic Aortic Valve Endocarditis Due to Infection: A Case Report.

Prosthetic valve endocarditis (PVE) can cause large cerebral vessel occlusion. Many reports suggested that mechanical thrombectomy (MT) is effective and useful for early diagnosis from the histopathological findings of thrombus. We present the case of a 62-year-old man, with a history of prosthetic aortic valve replacement and pulmonary vein isolation for his atrial fibrillation, who developed a high fever and an acute neurological deficit, with left hemiplegia and speech disorder.

Endovascular Treatment of Cerebral Venous Circulation Dysfunction Caused by Hemodialysis Shunt: A Case Report.

Objective: Central venous disease, defined as ≥50% stenosis or obstruction of central veins, is one of many life-threatening complications faced by patients on hemodialysis. It often presents as upper limb edema to the arteriovenous (AV) shunt for hemodialysis, although neurological symptoms are rare. We report a case of central venous disease with neurological symptoms associated with endovascular therapy.

[Paroxysmal Atrial Fibrillation after Percutaneous Thrombectomy on Day 5 of Onset of Cerebral Embolism:A Case Report].

Introduction: We report a case of embolic stroke with an atypical course after endovascular therapy performed during the subacute stage of progressive stroke, where symptom relapse could not be controlled despite medical treatment.

Case Presentation: An 81-year-old woman developed slight weakness in her left leg and was hospitalized three days after the onset of symptoms. On admission, her consciousness was almost clear and she exhibited left hemiparesis.

[Neuro-Endoscopic Surgery for Multi-Lobular Chronic Subdural Hematoma].

Background: Chronic subdural hematoma(CSDH)generally occurs in the elderly, and is usually treated by burr-hole craniotomy with closed-system drainage. Treatment of recurrent CSDH is more challenging, especially when the hematoma is multi-lobular. A variety of approaches to the management of multi-lobular CSDH have been described, including evacuation through a wide craniotomy, placement of an Ommaya reservoir, subdural peritoneal shunting, and embolization of the middle meningeal artery.

[Development of a New Neuro-Endoscope Cylinder for Safer Neuro-Endoscopic Surgery].

:Successful endoscopic surgery for intracerebral hemorrhage has previously been hampered by impaired visualization during the operation to remove the clot, leading to a relatively low removal efficiency for hematomas. However, in multiple case series, intracerebral hematomas have been reported to be removed using endoscopic visualization. Although using tubular retractors in cranial surgery is one technique to gain access to deep-seated lesions, it is difficult to confirm the depth of the retractor's sheath in the surgical field using only the outer sheath.

Histologic study of arteriovenous shunts in the normal dura mater adjacent to the transverse sinus.

Background: Although AV shunts are known to exist in the normal dura mater, their histologic appearance has not been examined in detail. Arteriovenous shunts in the normal dura mater adjacent to the transverse sinus, the most frequent site of DAVFs, were studied histologically.

Methods: Normal dura mater adjacent to the transverse sinus was obtained from 8 cadavers.

Perinidal dilated capillary networks in cerebral arteriovenous malformations.

Objective: The perinidal vascular structures of cerebral arteriovenous malformations were examined, to clarify their pathomorphological features.

Methods: Twenty-two resected specimens of human brain structures adjacent to the nidus were examined. The vessels surrounding the nidus were three-dimensionally reconstructed with a computer graphics system.

[Dramatic but temporary improvements in a case of CNS intravascular malignant lymphomatosis].

A 54-year-old man with a past history of gastric malignant lymphoma treated by the total gastrectomy and the chemotherapy, developed bilateral sudden deafness one year later. Two years after the gastrectomy he became abruptly paraplegic with sensory impairments of the lower extremities and neurogenic bladder. Serum LDH and soluble IL-2 receptor were high in titers (552 U/l and 1,090 U/l, normal range 145-519).