7,673 results match your criteria Brain Imaging in Arteriovenous Malformation


De novo arteriovenous shunts after endovascular cure of cerebrospinal macro arteriovenous fistulas. A role for the vasa vasorum?

J Neuroradiol 2020 Jun 27. Epub 2020 Jun 27.

Dept of Diagnostic and Interventional Neuroradiology, Hôpital Foch, Suresnes, France. Electronic address:

Background And Purpose: Macro-arteriovenous fistulas (MAVFs) are arteriovenous shunts draining into a giant venous ectasia. They can be treated by surgery or embolization. Angiographic controls are usually performed rapidly after treatment in order to prove the cure of the lesion but no long term angiographies are generally scheduled. Read More

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http://dx.doi.org/10.1016/j.neurad.2020.06.004DOI Listing

Medical management with interventional therapy versus medical management alone for unruptured brain arteriovenous malformations (ARUBA): final follow-up of a multicentre, non-blinded, randomised controlled trial.

Lancet Neurol 2020 Jul;19(7):573-581

International Center for Health Outcomes and Innovation Research, Department of Population Health Science and Policy, Icahn School of Medicine at Mount Sinai, New York, NY, USA.

Background: In A Randomized trial of Unruptured Brain Arteriovenous malformations (ARUBA), randomisation was halted at a mean follow-up of 33·3 months after a prespecified interim analysis showed that medical management alone was superior to the combination of medical management and interventional therapy in preventing symptomatic stroke or death. We aimed to study whether these differences persisted through 5-years' follow-up.

Methods: ARUBA was a non-blinded, randomised trial done at 39 clinical centres in nine countries. Read More

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http://dx.doi.org/10.1016/S1474-4422(20)30181-2DOI Listing
July 2020
21.896 Impact Factor

Germline Mutation Enrichment in Pathways Controlling Endothelial Cell Homeostasis in Patients with Brain Arteriovenous Malformation: Implication for Molecular Diagnosis.

Int J Mol Sci 2020 Jun 17;21(12). Epub 2020 Jun 17.

Department of Biomedical, Dental, Morphological and Functional Imaging Sciences, University of Messina, Via Consolare Valeria 1, 98125 Messina, Italy.

Brain arteriovenous malformation (bAVM) is a congenital defect affecting brain microvasculature, characterized by a direct shunt from arterioles to venules. Germline mutations in several genes related to transforming growth factor beta (TGF-β)/BMP signaling are linked to both sporadic and hereditary phenotypes. However, the low incidence of inherited cases makes the genetic bases of the disease unclear. Read More

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http://dx.doi.org/10.3390/ijms21124321DOI Listing

Pre-Surgical Endovascular Proximal Feeder Artery Devascularization Technique for the Treatment of Cranial Arteriovenous Malformations.

Vasc Health Risk Manag 2020 19;16:181-191. Epub 2020 May 19.

King Abdullah University Hospital, Jordan University of Science and Technology, Irbid, Jordan.

Objective: Treatment of brain arteriovenous malformations (AVMs) aims to abolish any risk for intracranial hemorrhage with the preservation of the patient's functional status. We present the technique of pre-surgical endovascular devascularization through proximal feeder artery occlusion for the treatment of cranial AVMs rather than nidus occlusion. Also, we highlight the advantages and the possible clinical indications. Read More

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http://dx.doi.org/10.2147/VHRM.S244514DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7245473PMC

Klippel-Trenaunay-Weber syndrome associated with multiple cerebral arteriovenous malformations. Usefulness of Gamma-Knife Stereotactic Radiosurgery in this syndrome.

World Neurosurg 2020 Jun 10. Epub 2020 Jun 10.

Gamma-Knife Radiosurgery Unit. Hospital Ruber Internacional. Calle la Maso, 38-28034. Madrid.

Background: Klippel-Trenaunay-Weber syndrome (KTWS) is characterized by the presence of a combined vascular malformation of capillaries, veins, and lymphatic vessels, congenital venous abnormalities, and limb hypertrophy. Its association with neurovascular abnormalities is infrequent, and the presence of intracranial arteriovenous malformations (AVMs) is extremely rare.

Case Description: We report a case of a 48-year-old male diagnosed with KTWS who spontaneously presented with a cerebral hemorrhage. Read More

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http://dx.doi.org/10.1016/j.wneu.2020.06.012DOI Listing

Diagnosis of foetal vein of galen aneurysmal malformation by ultrasound combined with magnetic resonance imaging: a case series.

BMC Med Imaging 2020 Jun 12;20(1):63. Epub 2020 Jun 12.

Department of Ultrasound Diagnosis, Gansu Provincial Maternity and Child-care Hospital, Lanzhou, 730050, Gansu Province, P. R. China.

Background: Foetal vein of Galen aneurysmal malformation (VGAM) is a very rare congenital malformation of the cerebral blood vessels. We sought to evaluate the diagnostic value of ultrasound in combination with magnetic resonance imaging (MRI) in foetal VGAM.

Case Presentation: Prenatal ultrasound combined with MRI diagnosed five cases of VGAM. Read More

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http://dx.doi.org/10.1186/s12880-020-00463-6DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7291422PMC

Visualization of Quantitative Flow Reduction with 4D-flow Magnetic Resonance Imaging in a Patient with Pelvic Arteriovenous Malformation After Transcatheter Arterial Embolization.

Cardiovasc Intervent Radiol 2020 Jun 11. Epub 2020 Jun 11.

Department of Diagnostic Imaging, Hokkaido University Graduate School of Medicine, Kita14, Nishi7, Kita-ku, Sapporo, Hokkaido, 060-8638, Japan.

A 54-year-old man was admitted to our hospital with dyspnea and heart failure. Contrast-enhanced computed tomography showed a giant pelvic arteriovenous malformation (AVM) fed by the left internal iliac artery (IIA), right IIA, and inferior mesenteric artery. (IMA). Read More

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http://dx.doi.org/10.1007/s00270-020-02545-yDOI Listing

Filar arteriovenous fistula associated with anomalous common posterior intercostal arterial trunk - A case report and review of literature.

Interv Neuroradiol 2020 Jun 11:1591019920931650. Epub 2020 Jun 11.

Department of Neurosurgery, All India Institute of Medical Sciences, New Delhi, India.

An anomalous common trunk giving rise to bilateral intercostal arteries at multiple levels is exceedingly rare and its association with spinal filar AVF and low-lying cord has not been reported so far. Here, we report this uncommon anatomical variation in a 60-year-old male who presented with paraplegia and on imaging found to have low-lying spinal cord with filar AVF and venous congestive myelopathy and discuss its embryological basis and associated malformations. Although rare, interventional radiologists should be aware of this entity, as these trunks may be a major source of bleeding in patients with hemoptysis, and also may be involved in vital spinal cord supply. Read More

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http://dx.doi.org/10.1177/1591019920931650DOI Listing

Treatment Strategies and Related Outcomes for Brain Arteriovenous Malformations in Children: A Systematic Review and Meta-Analysis.

AJR Am J Roentgenol 2020 Jun 6:1-16. Epub 2020 Jun 6.

Department of Diagnostic Imaging, The Hospital for Sick Children, University of Toronto, 555 University Ave, Toronto, ON M5G 1X8, Canada.

The objective of this study was to assess the available evidence in the literature regarding treatment outcomes for pediatric patients with brain arteriovenous malformation (bAVM) with the aim of providing practice guidelines for treatment decisions and highlighting research areas that need attention. Keyword searches for studies published from January 1, 1981, to April 16, 2018, were performed in MEDLINE, Embase, and Web of Science. Predefined inclusion criteria were used to identify studies. Read More

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http://dx.doi.org/10.2214/AJR.19.22443DOI Listing

Precision diagnosis and therapy of a case of brain abscesses associated with asymptomatic pulmonary arteriovenous fistulas.

BMC Infect Dis 2020 May 24;20(1):370. Epub 2020 May 24.

Department of Neurology, Qilu Hospital of Shandong University, Jinan, 250012, Shandong Province, China.

Background: Brain abscesses, a severe infectious disease of the CNS, are usually caused by a variety of different pathogens, which include Streptococcus intermedius (S. intermedius). Pulmonary arteriovenous fistulas (PAVFs), characterized by abnormal direct communication between pulmonary artery and vein, are a rare underlying cause of brain abscesses. Read More

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http://dx.doi.org/10.1186/s12879-020-05092-6DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7247166PMC

Hydrocephalus in children with ruptured cerebral arteriovenous malformation.

J Neurosurg Pediatr 2020 May 22:1-5. Epub 2020 May 22.

1APHP, Necker Hospital, Université de Paris.

Objective: Hydrocephalus is a strong determinant of poor neurological outcome after intracerebral hemorrhage (ICH). In children, ruptured brain arteriovenous malformations (bAVMs) are the dominant cause of ICH. In a large prospective cohort of pediatric patients with ruptured bAVMs, the authors analyzed the rates and predictive factors of hydrocephalus requiring acute external ventricular drainage (EVD) or ventriculoperitoneal shunt (VPS). Read More

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http://dx.doi.org/10.3171/2020.3.PEDS19680DOI Listing

Risk Assessment by Presurgical Tractography Using Navigated TMS Maps in Patients with Highly Motor- or Language-Eloquent Brain Tumors.

Cancers (Basel) 2020 May 17;12(5). Epub 2020 May 17.

Department of Neurosurgery, Klinikum rechts der Isar, Technische Universität München, Ismaninger Str. 22, 81675 Munich, Germany.

Patients with functionally eloquent brain lesions are at risk of functional decline in the course of resection. Given tumor-related plastic reshaping and reallocation of function, individual data are needed for patient counseling and risk assessment prior to surgery. This study evaluates the utility of mapping by navigated transcranial magnetic stimulation (nTMS) and nTMS-based diffusion tensor imaging fiber tracking (DTI FT) for individual risk evaluation of surgery-related decline of motor or language function in the clinical setting. Read More

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http://dx.doi.org/10.3390/cancers12051264DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7281396PMC

Comparison of MRI, MRA, and DSA for Detection of Cerebral Arteriovenous Malformations in Hereditary Hemorrhagic Telangiectasia.

AJNR Am J Neuroradiol 2020 Jun 7;41(6):969-975. Epub 2020 May 7.

Division of Neurointerventional Radiology (D.L.C., M.R.A., D.E.L., S.W.H.)

Background And Purpose: Patients with hereditary hemorrhagic telangiectasia (HHT) have a high prevalence of brain vascular malformations, putting them at risk for brain hemorrhage and other complications. Our aim was to evaluate the relative utility of MR imaging and MRA compared with DSA in detecting cerebral AVMs in the HHT population.

Materials And Methods: Of 343 consecutive patients evaluated at the University of California, San Francisco HTT Center of Excellence, 63 met the study inclusion criteria: definite or probable hereditary hemorrhagic telangiectasia defined by meeting at least 2 Curacao criteria or positive genetic testing, as well as having at least 1 brain MR imaging and 1 DSA. Read More

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http://dx.doi.org/10.3174/ajnr.A6549DOI Listing

Interhemispheric Surgical Approaches for Ruptured Intraventricular Arteriovenous Malformation-Associated Aneurysms: Technical Report and Case Series.

World Neurosurg 2020 Apr 25. Epub 2020 Apr 25.

Department of Neurological Surgery, University of California, San Francisco, California, USA. Electronic address:

Background: Aneurysms associated with brain arteriovenous malformations (AVMs) represent a hemorrhage risk in addition to that of the AVM nidus. In high-risk or unresectable cases, targeted treatment of an aneurysm causing hemorrhage may effectively decrease future hemorrhage risk. The objective of this report is to describe our series of patients with intraventricular AVM-associated aneurysms treated surgically. Read More

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http://dx.doi.org/10.1016/j.wneu.2020.04.066DOI Listing
April 2020
2.417 Impact Factor

Cerebral vascular malformations and their imaging modalities.

Neurol Sci 2020 Apr 25. Epub 2020 Apr 25.

Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, 02114, USA.

Cerebrovascular malformations are uncommon diverse group of dysmorphic vascular communications that may occur sporadically or as part of genetic syndromes. These include non-neoplastic lesions such as arteriovenous malformations (AVM), cavernous malformations (CM), developmental venous anomalies (DVA), and telangiectasias as well as others like arteriovenous fistulas (AVF), vein of Galen malformations (VOGM), and mixed or unclassified angiomas. These lesions often carry a high degree of morbidity and mortality often requiring surgical or endovascular interventions. Read More

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http://dx.doi.org/10.1007/s10072-020-04415-4DOI Listing

Microsurgical versus endovascular treatment of spinal epidural arteriovenous fistulas with intradural venous drainage: a multicenter study of 81 patients.

J Neurosurg Spine 2020 Apr 24:1-11. Epub 2020 Apr 24.

8Department of Neurosurgery, Tokyo Metropolitan Neurological Hospital, Tokyo.

Objective: Spinal arteriovenous shunts are rare vascular lesions and are classified into 4 types (types I-IV). Due to rapid advances in neuroimaging, spinal epidural AVFs (edAVFs), which are similar to type I spinal dural AVFs (dAVFs), have recently been increasingly reported. These 2 entities have several important differences that influence the treatment strategy selected. Read More

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http://dx.doi.org/10.3171/2020.2.SPINE191432DOI Listing

Sinus Pericranii Complicated by Hydrocephalus: Case Report and Literature Review.

World Neurosurg 2020 Apr 21;139:238-241. Epub 2020 Apr 21.

Department of Neurosurgery, College of Medicine, King Saud University Medical City, Riyadh, Saudi Arabia; Neurosurgery Department, Stanford University, Stanford, California, USA.

Background: Sinus pericranii (SP) is a rare vascular condition that results when abnormal communication between the intracranial and extracranial venous systems is present. Here we report a rare case of hydrocephalus revealed through a SP scalp mass with a review of literature.

Case Description: A 13-year-old girl presented with a history of bulging left eye, bilateral gradual deterioration of vision, nausea, and progressive headaches. Read More

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http://dx.doi.org/10.1016/j.wneu.2020.04.081DOI Listing

Bringing high-grade arteriovenous malformations under control: clinical outcomes following multimodality treatment in children.

J Neurosurg Pediatr 2020 Apr 10:1-10. Epub 2020 Apr 10.

Departments of1Neurological Surgery.

Objective: Brain arteriovenous malformations (AVMs) consist of dysplastic blood vessels with direct arteriovenous shunts that can hemorrhage spontaneously. In children, a higher lifetime hemorrhage risk must be balanced with treatment-related morbidity. The authors describe a collaborative, multimodal strategy resulting in effective and safe treatment of pediatric AVMs. Read More

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http://dx.doi.org/10.3171/2020.1.PEDS19487DOI Listing
April 2020
1.370 Impact Factor

Arteriovenous malformation presenting with epilepsy: a multimodal approach to diagnosis and treatment.

Neurosurg Focus 2020 04;48(4):E17

Arteriovenous malformation (AVM) presenting with epilepsy significantly impacts patient quality of life, and it should be considered very much a seizure disorder. Although hemorrhage prevention is the primary treatment aim of AVM surgery, seizure control should also be at the forefront of therapeutic management. Several hemodynamic and morphological characteristics of AVM have been identified to be associated with seizure presentation. Read More

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http://dx.doi.org/10.3171/2020.1.FOCUS19899DOI Listing

Management of Unruptured Cerebral Aneurysms and Arteriovenous Malformations.

Authors:
Ynte M Ruigrok

Continuum (Minneap Minn) 2020 Apr;26(2):478-498

Purpose Of Review: Unruptured intracranial aneurysms and brain arteriovenous malformations (AVMs) may be detected as incidental findings on cranial imaging. This article provides a practical approach to the management of unruptured intracranial aneurysms and unruptured brain AVMs and reviews the risk of rupture, risk factors for rupture, preventive treatment options with their associated risks, and the approach of treatment versus observation for both types of vascular malformations.

Recent Findings: For unruptured intracranial aneurysms, scoring systems on the risk of rupture can help with choosing preventive treatment or observation with follow-up imaging. Read More

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http://dx.doi.org/10.1212/CON.0000000000000835DOI Listing

A comparison of arterial spin labelling with catheter angiography in evaluating arteriovenous malformations: a systematic review.

Br J Radiol 2020 Jun 25;93(1110):20190830. Epub 2020 Mar 25.

University Hospitals of Leicester NHS Trust, Leicester, United Kingdom.

Objectives: To compare the performance of arterial spin labelling (ASL) in evaluating arteriovenous malformations (AVMs) against the current gold standard of catheter angiography.

Methods: We systematically reviewed the published literature using EMBASE and Medline. We included studies that compared ASL to catheter angiography in the assessment of AVMs in three outcome domains: detection, angioarchitectural and haemodynamic features. Read More

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http://dx.doi.org/10.1259/bjr.20190830DOI Listing
June 2020
1.533 Impact Factor

Plasticity in language cortex and white matter tracts after resection of dominant inferior parietal lobule arteriovenous malformations: a combined fMRI and DTI study.

J Neurosurg 2020 Mar 20:1-8. Epub 2020 Mar 20.

1Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing.

Objective: The dominant inferior parietal lobe (IPL) contains cortical and subcortical structures that serve language processing. A high incidence of postoperative short-term aphasia and good potential for language reorganization have been observed. The authors' goal was to study the plasticity of the language cortex and language-related fibers in patients with brain arteriovenous malformations (BAVMs) located in the IPL. Read More

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http://dx.doi.org/10.3171/2019.12.JNS191987DOI Listing

Tortuosity of superior cerebral veins: Comparative magnetic resonance imaging morphometrics in normal subjects and arteriovenous malformation patients.

Clin Anat 2020 Mar 20. Epub 2020 Mar 20.

Division of Neuroimaging and Neurointervention, Stanford Initiative for Multimodality neuro-Imaging in Translational Anatomy Research (SIMITAR), Department of Radiology, Stanford University School of Medicine, Stanford, California, USA.

Blood vessel tortuosity results from increased diameter and length in response to higher hemodynamic loads. Tortuosity metrics have not been determined for abnormal superior cerebral veins (SCVs) draining cerebral arteriovenous malformations (AVMs). Draining vein (DV) tortuosity may influence safety and efficacy of retrograde microcatheter navigation during transvenous treatment of pial AVMs. Read More

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http://dx.doi.org/10.1002/ca.23589DOI Listing
March 2020
1.159 Impact Factor

Association of intracranial arteriovenous malformation embolization with more rapid rate of perfusion in the peri-nidal region on color-coded quantitative digital subtraction angiography.

J Neurointerv Surg 2020 Mar 18. Epub 2020 Mar 18.

Radiology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA.

Background: Hemodynamic alterations post-embolization of intracranial arteriovenous malformations (AVMs) may cause delayed edema/hemorrhage in brain parenchyma adjacent to the lesion.

Objective: To quantify and compare cerebral perfusion changes in the peri-AVM territory pre- and post-embolization using color-coded quantitative digital subtraction angiography (q-DSA).

Methods: Pediatric intracranial AVM embolization procedures performed over a 5 year period were included. Read More

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http://dx.doi.org/10.1136/neurintsurg-2019-015776DOI Listing

Isolated hemorrhagic arterialized DVAs: revisiting symptomatic DVAs.

Neurol Sci 2020 Mar 4. Epub 2020 Mar 4.

Department of Neurosurgery, Lady Reading Hospital, Peshawar, Pakistan.

We aim to present here a small case series of symptomatic isolated hemorrhagic arterialized developmental venous anomalies (sDVAs) with a larger goal of revisiting the classification based on patho-mechanisms plus emphasizing angiographic features coupled with CT and MRI. Typically, DVA is an incidental and silent abnormality on neuroimaging. Understanding its morphology in terms of arterialization and relationship with other entities is crucial for management. Read More

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http://dx.doi.org/10.1007/s10072-020-04294-9DOI Listing

MRI-Guided Laser Interstitial Thermal Therapy for Radiation Necrosis in Previously Irradiated Brain Arteriovenous Malformations.

Pract Radiat Oncol 2020 Feb 14. Epub 2020 Feb 14.

Departments of Neurosurgery, Yale School of Medicine, New Haven, Connecticut; Departments of Radiology & Biomedical Imaging, Yale School of Medicine, New Haven, Connecticut.

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http://dx.doi.org/10.1016/j.prro.2020.02.003DOI Listing
February 2020

Too Much on Your "Plate"? Spectrum of Pathologies Involving the Tectal Plate.

Can Assoc Radiol J 2020 May 27;71(2):186-194. Epub 2020 Jan 27.

Department of Radiology, The Ottawa Hospital, University of Ottawa, Ottawa, Ontario, Canada.

The tectal plate comprises the posterior portion of the midbrain, borders the quadrigeminal cistern, and includes the superior and inferior colliculi. Benign and malignant pathologies occurring in this location may lead to aqueductal stenosis, obstructive hydrocephalus, and Parinaud syndrome. Both computed tomography and magnetic resonance imaging can be used to further characterize lesions involving the tectal plate. Read More

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http://dx.doi.org/10.1177/0846537119888410DOI Listing

Prevalence, risk factors and pregnancy outcomes of women with vascular brain lesions in pregnancy.

Arch Gynecol Obstet 2020 03 14;301(3):665-670. Epub 2020 Feb 14.

Department of Obstetrics and Gynecology, Royal Victoria Hospital, McGill University, Montreal, QC, Canada.

Background: Vascular brain lesions (VBL) occur in up to 4.0% of the general population. With the increasing availability and use of sophisticated imaging techniques, there are more patients being diagnosed with asymptomatic intracranial AVMs and cavernous hemangiomas. Read More

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http://dx.doi.org/10.1007/s00404-020-05451-3DOI Listing

Full recovery after non-target cerebral embolization of n-butyl-cyanoacrylate occurred during emergency treatment of a facial arteriovenous malformation.

CVIR Endovasc 2019 Jun 29;2(1):20. Epub 2019 Jun 29.

Department of Radiology, Humanitas Research Hospital, Via R.L. Montalcini 4, 20090, Pieve Emanuele, MI, Italy.

Background: Non-target embolization is a well-known complication of endovascular procedures for arteriovenous malformation. However, few reports have described non target encephalic embolization, detailing its temporal evolution.

Case Presentation: A 41-year-old man presented with a massive hemorrhage in the oral cavity due to an arteriovenous malformation involving the left hemiface and tongue. Read More

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http://dx.doi.org/10.1186/s42155-019-0063-3DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6966355PMC

Trigeminal neuralgia associated with cerebellar pial arteriovenous fistula: A case report.

Medicine (Baltimore) 2020 Jan;99(3):e18873

Department of Neurosurgery, Fourth Affiliated Hospital, School of Medicine, Zhejiang University, Yiwu, Zhejiang, China.

Rationale: Trigeminal neuralgia (TN) is frequently associated with compression at the root entry zone of the trigeminal nerve by an aberrant loop of an artery, tributaries of the petrosal vein, tumors, aneurysm, and vascular malformation. TN associated with a cerebellar pial arteriovenous fistula (PAVF) has not been described previously.

Patient Concerns: A 65-year-old man presented with right-sided TN. Read More

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http://dx.doi.org/10.1097/MD.0000000000018873DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7220074PMC
January 2020

High Resistance Index in the Feeding Arteries of Indirect Carotidcavernous Fistulae: A Diagnostic Pitfall.

Acta Neurol Taiwan 2019 Sep;28(3):75-77

Department of Neurology, Mackay Memorial Hospital, Taipei, Taiwan.

Carotid-cavernous fistulae (CCFs) are classified into the direct and indirect types, which can be attributed to trauma, atherosclerosis, hypertension, diabetes mellitus, pregnant or postmenopausal status(1). Cerebral angiography is the gold standard for the diagnosis of CCFs. Doppler ultrasound, which typically reveals increased blood flow velocity and decreased resistance index (RI) in the feeding arteries, can assist in the diagnosis(2-3). Read More

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September 2019

Thoracic Dural Arteriovenous Fistula Presenting with Isolated Pseudobulbar Palsy Mimicking Brainstem Lesion.

World Neurosurg 2020 Apr 16;136:157-160. Epub 2020 Jan 16.

Department of Neurosurgery, Tohoku University, Graduate School of Medicine, Aoba-ku, Sendai, Miyagi, Japan.

Background: Spinal dural arteriovenous fistulas (DAVFs) are usually associated with neurologic dysfunction adjacent to the shunt point; however, the symptoms are uncommon far from the site of the fistula. To our knowledge, this is the first report of a patient with rapidly progressive isolated pseudobulbar palsy because of thoracic DAVF.

Case Description: We report a patient with thoracic DAVF presenting with remote symptoms of brainstem congestion. Read More

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http://dx.doi.org/10.1016/j.wneu.2020.01.074DOI Listing

Dural arteriovenous fistulas and headache features: an observational study.

J Headache Pain 2020 Jan 16;21(1). Epub 2020 Jan 16.

Clinica Neurologica, Dipartimento di Neuroscienze, Policlinico Gemelli, Università Cattolica, Rome, Italy.

Background: Dural arteriovenous fistulas are intracranial vascular malformations, fed by dural arteries and draining venous sinuses or meningeal veins. Clinical course varies widely and ranges from benign with spontaneous remission to fatal, due to cerebral hemorrhage. In a 10-year single institution experience, clinical presentation of dural arteriovenous fistulas, and in particular headache and angiographic features, as well as long-term outcome were analyzed. Read More

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http://dx.doi.org/10.1186/s10194-020-1073-1DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6966899PMC
January 2020

Interhemispheric Transcallosal Approach for Resection of Choroidal Arteriovenous Malformation: Operative Video.

World Neurosurg 2020 Apr 30;136:73. Epub 2019 Dec 30.

Department of Neurological Surgery, Mayo Clinic, Jacksonville, Florida, USA. Electronic address:

Choroidal arteriovenous malformations (AVMs) are rare vascular entities located deep within the brain and in close relationship with vital paraventricular structures. Recruitment of feeders from the anterior and posterior choroidal arteries is typical in these lesions. We present the case of a 38-year-old woman who presented initially to an outside hospital with an intracranial hemorrhage 17 months prior. Read More

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http://dx.doi.org/10.1016/j.wneu.2019.12.126DOI Listing

Spontaneous Subarachnoid Hemorrhage From a Pure Pial Arterial Malformation in the Lateral Cerebellomedullary Junction: Clinical Images with a Surgical Video.

World Neurosurg 2020 Mar 24;135:214-216. Epub 2019 Dec 24.

Department of Neurological Surgery, School of Medicine and Public Health, University of Wisconsin, Madison, Wisconsin, USA. Electronic address:

Pure pial arterial malformations (PAMs) are poorly understood owing to the limited number of reported cases. Because PAMs have been thought to have a benign natural history, they have generally been managed conservatively, unlike arteriovenous malformations or arteriovenous fistulas. In the present report, we have described a spontaneous subarachnoid hemorrhage from the rupture of a PAM at the cerebellomedullary junction. Read More

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http://dx.doi.org/10.1016/j.wneu.2019.12.093DOI Listing
March 2020
2.417 Impact Factor

Regression of a symptomatic varix after transarterial embolization of a brain arteriovenous malformation: A case report and literature review.

Medicine (Baltimore) 2019 Dec;98(52):e18418

Department of Neurosurgery.

Rationale: Brain arteriovenous malformation (BAVM)-associated varix is always asymptomatic, and no special treatment is needed. However, there is no consensus regarding how to address a varix that has led to clinical manifestation.

Patient Concerns: An 11-year-old girl was admitted complaining of left hemiparesis for 4 days. Read More

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http://dx.doi.org/10.1097/MD.0000000000018418DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6946530PMC
December 2019
5.723 Impact Factor

[Tentorial Dural Arteriovenous Fistula with Bithalamic Lesions and Bilateral Basal Ganglia Hemorrhage:A Case Report].

No Shinkei Geka 2019 Dec;47(12):1247-1254

Department of Neurosurgery & Neuroendovascular Therapy, Osaka Medical College.

Objective: We report an unusual case of tentorial dural arteriovenous fistula(DAVF)with bithalamic lesions and bilateral intracranial hemorrhage.

Case Presentation: A 73-year-old man presented with lethargy and progressive cognitive decline. Imaging demonstrated bithalamic edematous lesions and bilateral basal ganglia hemorrhage in the right putamen and left internal capsule. Read More

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http://dx.doi.org/10.11477/mf.1436204111DOI Listing
December 2019

Cardiopulmonary arrest induced by atlantoaxial dislocation with subarachnoid hemorrhage: a case report and review of the literature.

Spinal Cord Ser Cases 2019 12;5:100. Epub 2019 Dec 12.

3Department of Neurosurgery, Juntendo University, Tokyo, Japan.

Introduction: Spinal cord injury (SCI) with atlantoaxial dislocation (AAD) is often fatal. We present the case of a resuscitated patient with AAD and traumatic subarachnoid hemorrhage (SAH) at the craniovertebral junction (CVJ).

Case Presentation: We present the case of an 84-year-old man who suffered an observed cardiopulmonary arrest. Read More

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http://dx.doi.org/10.1038/s41394-019-0247-zDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6908628PMC
December 2019

Management and Outcomes of Neonatal Arteriovenous Brain Malformations with Cardiac Failure: A 17 Years' Experience in a Tertiary Referral Center.

J Pediatr 2020 Mar 20;218:85-91.e2. Epub 2019 Dec 20.

Department of Interventional Neuroradiology Neuro Brain vascular center, Paris-Saclay University Hospitals, Bicêtre medical center, Assistance publique-hôpitaux de Paris, France.

Objectives: To assess the management and outcomes of neonatal arteriovenous brain malformations (mostly vein of Galen malformations) complicated by cardiac failure in the era of prenatal diagnosis and endovascular treatment in a tertiary referral center.

Study Design: This observational study included 77 living newborn infants with arteriovenous brain malformations with cardiac failure, admitted to our referral center from 2001 to 2017. All infants underwent cardiovascular evaluation including echocardiogram and brain magnetic resonance imaging. Read More

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http://dx.doi.org/10.1016/j.jpeds.2019.10.090DOI Listing

Proptosis as a Primary Symptom of Brain Arteriovenous Malformation.

Ophthalmic Plast Reconstr Surg 2020 Mar/Apr;36(2):e53-e54

Department of Neurosurgery and Radiology, Severance Stroke Center, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.

Proptosis is a common yet cardinal symptom that may indicate the development of a wide range of diseases. Causes of proptosis are usually classified into vascular, inflammatory, endocrine, and neoplastic. Herein, the authors describe a case where proptosis manifested as the primary and only symptom of a massive brain arteriovenous malformation. Read More

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http://dx.doi.org/10.1097/IOP.0000000000001570DOI Listing
December 2019

Cerebral Abscess After Onyx Embolization of an Arteriovenous Malformation.

World Neurosurg 2020 Mar 11;135:96-99. Epub 2019 Dec 11.

Department of Neurosurgery, North Shore University Hospital, Manhasset, New York, USA.

Background: Endovascular embolization is being increasingly used to treat cerebral arteriovenous malformations. Common complications associated with embolization include intracranial hemorrhage and ischemic stroke; intracranial infections seldomly occur and are even less frequently reported. Although abscess formation after embolization is exceedingly rare, it is a serious condition that warrants immediate attention. Read More

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http://dx.doi.org/10.1016/j.wneu.2019.12.009DOI Listing
March 2020
2.417 Impact Factor

Impact of AVM location on language cortex right-hemisphere reorganization: A voxel-based lesion-symptom mapping study.

Clin Neurol Neurosurg 2020 02 28;189:105628. Epub 2019 Nov 28.

Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, China National Clinical Research Center for Neurological Diseases, Beijing, China. Electronic address:

Objectives: Cerebral arteriovenous malformations (AVMs) are congenital malformations, and right-sided dominance of the language cortex is not a rare phenomenon for patients with AVM involving language area. We tried to use voxel-based lesion-symptom mapping (VLSM) method to depict the location of AVM nidus and to demonstrate the relationship between AVM location and the pattern of language cortex reorganization.

Patients And Methods: The authors retrospectively reviewed clinical and imaging data of 70 adult patients with unruptured cerebral AVMs who underwent blood oxygen level-dependent (BOLD) functional magnetic resonance imaging (fMRI) of language task. Read More

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http://dx.doi.org/10.1016/j.clineuro.2019.105628DOI Listing
February 2020

82Rubidium chloride PET discrimination of recurrent intracranial malignancy from radiation necrosis.

Q J Nucl Med Mol Imaging 2019 Dec 9. Epub 2019 Dec 9.

Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, GA, USA.

Background: Accurate identification and discrimination of post treatment changes from recurrent disease remains a challenge for patients with intracranial malignancies despite advances in molecular and magnetic resonance imaging. We have explored the ability of readily available Rubidium-82 chloride (82RbCl) PET to identify and distinguish progressive intracranial disease from radiation necrosis in patients previously treated with radiation therapy.

Methods: Six patients with a total of 9 lesions of either primary (n=3) or metastatic (n=6) intracranial malignancies previously treated with stereotactic radiation surgery (SRS) and persistent contrast enhancement on MRI underwent brain 82RbCl PET imaging. Read More

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http://dx.doi.org/10.23736/S1824-4785.19.03173-XDOI Listing
December 2019

First Line Onyx Embolization in Ruptured Pediatric Arteriovenous Malformations : Safety and Efficacy.

Clin Neuroradiol 2019 Dec 4. Epub 2019 Dec 4.

Pediatric Radiology, Necker Children Hospital, Paris, France.

Purpose: Brain arteriovenous malformations (bAVM) are the main cause of pediatric intracerebral hemorrhage (pICH). Embolization with Onyx (ev3, Irvine, CA, USA) in children with ruptured bAVM has been infrequently reported. The aim of this study was to assess the safety and efficacy profile of Onyx embolization as first line endovascular treatment of ruptured pediatric bAVMs. Read More

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http://dx.doi.org/10.1007/s00062-019-00861-6DOI Listing
December 2019

Evaluation of a new software prototype for frameless radiosurgery of arteriovenous malformations.

Radiat Oncol 2019 Dec 2;14(1):217. Epub 2019 Dec 2.

Division of Medical Radiation Physics and Department of Radiation Oncology, Inselspital, Bern University Hospital, and University of Bern, Berne, Switzerland.

Background: In order to locate an arteriovenous malformation, typically, a digital subtraction angiography (DSA) is carried out. To use the DSA for target definition an accurate image registration between CT and DSA is required. Carrying out a non-invasive, frameless procedure, registration of the 2D-DSA images with the CT is critical. Read More

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http://dx.doi.org/10.1186/s13014-019-1422-xDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6889560PMC
December 2019

Bilateral Fornical Columns Infarction Secondary to an Arteriovenous Malformation Embolization.

World Neurosurg 2020 Mar 29;135:113-117. Epub 2019 Nov 29.

Department of Neurosurgery, Cliniques Universitaires Saint-Luc, Université Catholique de Louvain, Brussels, Belgium. Electronic address:

Background: Three group of perforation branches are described coming out from the anterior communicating artery (AcoA): the hypothalamic branches, chiasmatic branches, and subcallosal artery (ScA). Bilateral anterior fornix infarction with sudden anterograde amnesia after ScA ischemic stroke has been previously described. Although only a few cases are reported in the literature, ScA occlusion has been well described for both noniatrogenic and iatrogenic causes. Read More

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http://dx.doi.org/10.1016/j.wneu.2019.11.141DOI Listing

The role of contrast-enhanced ultrasound in neurosurgical disease.

Neurosurg Focus 2019 12;47(6):E8

1Department of Neurological Surgery, University of Virginia Health System, Charlottesville, Virginia; and.

Contrast-enhanced ultrasound (CEUS) is a relatively new imaging modality in the realm of neurosurgical disease. CEUS permits the examination of blood flow through arteries, veins, and capillaries via intravascular contrast agents and allows vascular architectural mapping with extreme sensitivity and specificity. While it has established utility in other organ systems such as the liver and kidneys, CEUS has not been studied extensively in the brain. Read More

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http://dx.doi.org/10.3171/2019.9.FOCUS19624DOI Listing
December 2019

Neuroendovascular surgery.

Authors:
Howard A Riina

J Neurosurg 2019 12;131(6):1690-1701

Neuroendovascular surgery and interventional neuroradiology both describe the catheter-based (most often) endovascular diagnosis and treatment of vascular lesions affecting the brain and spinal cord. This article traces the evolution of these techniques and their current role as the dominant and frequently standard approach for many of these conditions. The article also discusses the important changes that have been brought to bear on open cerebrovascular neurosurgery by neuroendovascular surgery and their effects on resident and fellow training and describes new concepts for clinical care. Read More

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http://dx.doi.org/10.3171/2019.8.JNS182678DOI Listing
December 2019

Spontaneous brain arteriovenous malformation rupture with atrioventricular block in a pediatric patient.

Authors:
Matthew Cully

Am J Emerg Med 2020 02 16;38(2):409.e1-409.e3. Epub 2019 Nov 16.

Division of Emergency Medicine, Department of Pediatrics, Nemours Alfred I. duPont Hospital for Children. Wilmington, DE, USA. Electronic address:

This case reports 9 year-old-female with atrioventricular block and seizure. Careful evaluation, including electrocardiogram (ECG) and computerized tomography (CT) revealed a high-grade atrioventricular block and spontaneous brain arteriovenous malformation (AVM) rupture. The patient had complete resolution of her bradycardia and AV block following atropine. Read More

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http://dx.doi.org/10.1016/j.ajem.2019.10.005DOI Listing
February 2020