Dura AV

Vascular malformations in the dura of the spinal root sleeve in the thoracic or lumbar region can cause venous hypertension with resultant spinal cord edema and neurologic deterioration. However, occasionally an intracranial vascular malformation can have venous drainage into the spinal canal causing symptoms, signs, and radiographic appearance that can mimic spinal lesions. Herein, we present the case of a 73-year-old man who developed lower extremity weakness and loss of sensation. The patient initially underwent L4-L5 diskectomy elsewhere, but the symptoms progressed...

OBJECTIVE: Spinal dural arteriovenous fistulas (SDAVFs) typically represent abnormal shunts between a radiculomeningeal artery and radicular vein, with the point of fistulization classically directly underneath the pedicle of the vertebral body, at the dural sleeve of the nerve root. However, SDAVFs can also develop in atypical locations or have more than one arterial feeder, which is a variant of SDAVF. The aim of this study was to describe the incidence and multidisciplinary treatment of variant SDAVFs in a single-center case series...

OBJECTIVE: To compare the clinical effect of microsurgery and endovascular embolization in the treatment of spinal dural arteriovenous fistula (SDAVF) by meta-analysis. METHODS: A systematic review was performed to retrieve all relevant literature about surgical treatment or endovascular embolization of SDAVF up to December 2019 through PubMed, Embase, Web of Science, Cochrane Central Register of Controlled Trials Results, CNKI, Wanfang Data, and SinoMed. The Chinese and English key words included: "SDAVF", "spinal dural arteriovenous fistula", "spinal AVM", "spinal vascular malformation and treatment"...

Dural arteriovenous fistula (DAVF) is an acquired lesion. The dural arteries connect with the dural veins within the dura mater in the histopathological study. Sinus type involves the cavernous sinus, transverse-sigmoid sinus, superior sagittal sinus, and anterior condylar confluence (or condylar canal). Non-sinus type involves the anterior cranial base, falcotentorial region, craniocervical junction, convexity, and spinal dura mater.Radical treatment is to obliterate the draining veins in any treatment modalities including endovascular treatment or surgical treatment...

Dural Arteriovenous Malformations (DAVFs) are rare vascular malformations involving the dura and cerebral veins. They occur in a variety of locations but in general the cavernous sinus lesion is more frequent among Asian patients while the transverse sinus is more usual among western patients. Treatments include microsurgery, endovascular embolization and GKNS. The dangerous concomitant of DAVFs is retrograde flow into the cerebral veins (CVR). Patients with CVR are at risk for bleeding, neurological deficit and in some cases death...

BACKGROUND: Spinal dural arteriovenous fistula (SDAVF) usually occurs during the 4th to 6th decades of life, and adolescent SDAVF is rarely reported. SDAVF arising around a tumor is also rare, and reported tumors are mostly schwannoma and lipoma. CASE PRESENTATION: We reported a 16-year-old male presented with progressive weakness and numbness of lower limbs for 3 months. A SDAVF was found, which was fed by right radicular arteries from segmental artery at L2 level and drained retrogradely into perimedullary veins...

Background and Introduction: Dural arteriovenous fistulas (dAVFs) are a rare pathology with a clinical presentation related to their anatomical location. Craniocervical junction (CCJ) dAVFs are challenging to treat given the delicate structures that surround the CCJ. Endovascular treatment has evolved significantly in the past decade, but open microsurgery remains an invaluable tool for this pathology. Objective: To demonstrate the step-by-step elements of the far lateral approach for microsurgical ligation of CCJ dAVF...

BACKGROUND: Recently, bone fixation materials have been developed as surgical materials. Bioabsorbable materials offer several advantages over other materials and are widely used. We report a rare case of the fracture of bioresorbable plates caused by head injury and describe some considerations. CASE DESCRIPTION: A 6-year-old boy suffered from consciousness disturbance. He was admitted to our hospital and diagnosed with left frontal subcortical hemorrhage due to ruptured arteriovenous malformation (AVM)...

Dural arteriovenous fistulas (dAVF) are rare, acquired intracranial arteriovenous malformations consisting of a pathological shunt located within the intracranial dura matter. The etiology of dAVFs remains unclear, but current thought suggests that these lesions are associated with thrombosis of the dural sinuses and other intracranial veins. dAVF's with severe symptomatology or high-risk angioarchitecture should be treated without delay, and endovascular repair is generally accepted as the first-line treatment...

INTRODUCTION: The purpose of this report is to present a rare case of Hirayama disease (HD) in a patient with a history of late-onset symptomatic vein of Galen aneurysmal malformation (VGAM). This report may provide new insights into the pathophysiology of HD, a rare disorder consisting of insidious onset of unilateral weakness and atrophy of the forearm and intrinsic hand muscles. These symptoms are believed to result from cervical myelopathy affecting the anterior horn cells due to abnormal compressive forces on the spinal cord from adjacent anatomical structures (i...

Sonographic findings of cerebral arteriovenous malformations in the fetus are uncommon and usually regard aneurysm of the Galen vein. Outcome of arteriovenous malformations is usually severe. We report a case of a fetus at 21 weeks' gestation with a rarer arteriovenous malformation, referred to us for echocardiography on account of a suspicious cardiomegaly at obstetrical scan. Upon examination, we found cardiomegaly, together with an associated moderate tricuspid regurgitation, however, there were no clear features of tricuspid dysplasia...

Dural arteriovenous fistulas (DAVF) are rare acquired lesions resulting from abnormal shunting between intracranial dural arteries and venous system. Typically arising from structural weakness of the dura and a coinciding trigger factor, DAVFs can present with similar clinical and imaging characteristics to sinus thrombosis. A 61-year-old male with a history of meningioma previously managed with subtotal resection and stereotactic radiosurgery presented with progressive right-sided vision loss and bilateral papilledema...

Dural arteriovenous fistulas (DAVFs) are benign but may present with life-threatening hemorrhage or symptoms of venous hypertension (eg, progressive myelopathy).1-3 DAVFs follow well-described anatomic patterns.4 The marginal sinus is located between the layers of the dura, circumferentially around the foramen magnum. It communicates with the basal venous plexus of the clivus anteriorly and the occipital sinus posteriorly.5,6 Arterial supply to the dura in this region that fistulizes into the sinus arises from meningeal branches from the V3 or V4 segments...

In this case report, we describe a rare case of anterior cranial fossa dural arteriovenous fistula(ACF-dAVF)that had drained into the fronto-basal vein and refluxed to the superficial middle cerebral vein(SMCV). A 45-year-old man presented with aphasia and swelling of the left eye after head trauma. MRI detected a flow void in the left frontal basal area, and digital subtraction angiography revealed ACF-dAVF, which was fed from the ophthalmic arteries on both sides and had a shunt point within the left front basal dura...

BACKGROUND: Spinal arteriovenous malformations in children are extremely rare and pose great risk for intraoperative hemorrhage. Congenital syphilis sometimes presents with vascular symptoms, however, there is little published on patients with a history of congenital syphilis presenting with spinal arteriovenous malformations. CASE PRESENTATION: A 15-month-old female with a history of congenital syphilis presented with urinary retention, fever, and subacute onset of paraplegia...

Objectives  Dural arteriovenous fistulas (DAVFs) at the cervicomedullary junction are uncommon and often accompanied by subarachnoid hemorrhage (SAH). We aim to illustrate in detail the microsurgical procedure for treating a DAVF located at the cervicomedullary junction. Design  We present a two-dimensional operative video that includes clinical history, preoperative imaging, surgical strategy, still images with labels, clinical course, and postoperative imaging. Setting  The microsurgery was performed at an academic medical center...

BACKGROUND: Stabbing headache (SH) is considered as a pure primary headache, but according to a few clinical observations it could also be secondary. Over the past decades, we have been observing the complaint of SH in patients with intracranial vascular and neoplastic lesions. OBJECTIVE: To describe a series of patients with intracranial lesions who experienced SH. METHODS: This is a cross-sectional, retrospective study of 34 patients with intracranial lesions associated with SH, admitted at Hospital das Clínicas, Federal University of Pernambuco, Brazil...

OBJECTIVE: The purpose of the present study was to compare the treatment success rates of primary neurosurgical and endovascular treatments in patients with spinal dural arteriovenous fistulas (dAVFs). METHODS: Data from 199 consecutive patients with thoracic and lumbosacral spinal dAVFs were collected from 18 centers. Angiographic and clinical findings, the rate of initial treatment failure or recurrence by procedures, risk factors for treatment failure, complications, and neurological outcomes were statistically analyzed...

Dural arterio-venous fistulas of the middle cranial fossa may occur within the dura of lesser or greater sphenoid wings. Lesser sphenoid wing fistulas rarely recruit cortical venous drainage and mostly drain in the cavernous sinus. On the other hand, greater sphenoid wing dural fistulas, also known as paracavernous fistulas or sphenobasilar and sphenopetrosal sinus fistulas, are much more notorious as they almost always connect with the superficial middle cerebral vein resulting in secondary cortical venous reflux and varix formation...

A 75-year-old woman developed low back pain, weakness of the lower extremities, and urinary retention. On day 7 after the onset of symptoms, she was brought to the emergency department of our hospital by an ambulance because of progressive weakness of both lower extremities. Spine MRI showed longitudinally extensive spinal cord lesion (LESCL) at the Th8-Th11 spinal cord level and flow voids around the lesions. Lumbar puncture revealed a normal opening pressure, yellowish appearance, pleocytosis with polymorphonuclear predominance, and decreased cerebrospinal fluid (CSF) glucose levels...