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JOURNAL ARTICLE
Gahn Duangprasert, Dilok Tantongtip
BACKGROUND: Transvenous embolization of high-grade dural arteriovenous fistulas (dAVFs) is challenging particularly when the direct sinus access is favorable due to the complex venous anatomy which prohibits endovascular access via the transfemoral approach. METHOD: The procedure was conducted in the hybrid operating suite, where a burr hole was performed, followed by direct catheterization of the superior sagittal sinus. Coil embolization was then executed to achieve complete obliteration of the fistula...
March 12, 2024: Acta Neurochirurgica
#22
Junya Tatezuki, Sujong Pak, Fukutaro Ohgaki, Yasunori Takemoto, Yasuhiko Mochimatsu
Hemorrhagic changes in a dural arteriovenous fistula are typically associated with cortical venous reflux and occur as intracerebral or subarachnoid hemorrhages. A convexity dural arteriovenous fistula (DAVF) usually flows directly into the cortical veins and exhibits cortical venous reflux. Herein, we report a rare case of a convexity DAVF without cortical venous reflux presenting with a pure acute subdural hematoma. A 19-year-old man complaining of headache without any history of head injury was diagnosed with a left acute subdural hematoma on magnetic resonance imaging (MRI) and referred to our hospital...
2024: NMC Case Report Journal
#23
JOURNAL ARTICLE
Arevik Abramyan, Mena Samaan, Arno Fried, Sudipta Roychowdhury, Gaurav Gupta
Dural arteriovenous fistulas (DAVFs) are intracranial vascular lesions with abnormal communication between the dural arteries and dural and/or cortical venous systems. While benign DAVFs, like Cognard I and IIa/Borden I, can be observed, higher-grade DAVFs, such as Cognard IIb-V/Borden II and III, should be treated.1,2 This video article depicts the microsurgical management after embolization of a middle cranial fossa Cognard IV DAVF with venous varices causing mass effect in the right thalamus, basal ganglia, and posterior limb of the right internal capsule...
March 7, 2024: Operative Neurosurgery (Hagerstown, Md.)
#24
REVIEW
Prasert Iampreechakul, Korrapakc Wangtanaphat, Songpol Chuntaroj, Sirirat Khunvutthidee, Yodkhwan Wattanasen, Sunisa Hangsapruek, Punjama Lertbutsayanukul, Somkiet Siriwimonmas
BACKGROUND: Dural arteriovenous fistulas (DAVFs) involving superior petrosal sinus (SPS) and superior petrosal vein (SPV) are extremely rare. The pathogenesis of these fistulas remains unclear. We are illustrating 2 cases of DAVFs involving the superior petrosal sinus and veins associated with venous sinus thrombosis with a literature review. METHODS: We reviewed the literature using the PRISMA (preferred reporting items for systematic reviews and meta-analyses) guidelines focusing on DAVFs involving the SPS and/or SPV...
April 2024: World neurosurgery: X
#25
JOURNAL ARTICLE
Erin Walker, Anja Srienc, Daphne Lew, Ridhima Guniganti, Giuseppe Lanzino, Waleed Brinjikji, Minako Hayakawa, Edgar A Samaniego, Colin P Derdeyn, Rose Du, Rosalind Lai, Jason P Sheehan, Robert M Starke, Adib Abla, Ahmed Abdelsalam, Bradley Gross, Felipe Albuquerque, Michael T Lawton, Louis J Kim, Michael Levitt, Sepideh Amin-Hanjani, Ali Alaraj, Ethan Winkler, W Christopher Fox, Adam Polifka, Samuel Hall, Diederik Bulters, Andrew Durnford, Junichiro Satomi, Yoshiteru Tada, J Marc C van Dijk, Adriaan R E Potgieser, Ching-Jen Chen, Andrea Becerril-Gaitan, Joshua W Osbun, Gregory J Zipfel
OBJECTIVE: Borden-Shucart type I dural arteriovenous fistulas (dAVFs) lack cortical venous drainage and occasionally necessitate intervention depending on patient symptoms. Conversion is the rare transformation of a low-grade dAVF to a higher grade. Factors associated with increased risk of dAVF conversion to a higher grade are poorly understood. The authors hypothesized that partial treatment of type I dAVFs is an independent risk factor for conversion. METHODS: The multicenter Consortium for Dural Arteriovenous Fistula Outcomes Research database was used to perform a retrospective analysis of all patients with type I dAVFs...
March 2024: Neurosurgical Focus
#26
JOURNAL ARTICLE
Chandler N Berke, Anant Naik, Neil Majmundar, Sean Munier, Raphia Rahman, Ahsan Sattar, Priyank Khandelwal, James K Liu
OBJECTIVE: Ethmoidal dural arteriovenous fistulas (DAVFs) are often associated with cortical venous drainage (CVD) and a higher incidence of hemorrhage compared with DAVFs in other locations. They may be treated with open surgical disconnection or with endovascular treatment (EVT). In this systematic review and meta-analysis, the authors compare the outcomes of ethmoidal DAVFs treated with open microsurgery versus EVT and report four additional cases of ethmoidal DAVFs treated with open microsurgery in their institution...
March 2024: Neurosurgical Focus
#27
JOURNAL ARTICLE
Shane Shahrestani, Michelot Michel, Maria Paula Aguilera-Pena, Miguel D Quintero-Consuegra, Nestor R Gonzalez
OBJECTIVE: Intracranial dural arteriovenous fistulas (dAVFs) are rare vascular lesions that can be asymptomatic or can lead to devastating hemorrhage based on the dAVF's aggressiveness. Several approaches can be taken to treat dAVFs, such as endovascular embolization and surgical ligation. However, very few studies have evaluated the influence of surgery compared to endovascular approaches on patient outcomes. This study was performed to analyze the clinical characteristics and outcomes of patients who underwent treatment for intracranial dAVF in which either endovascular embolization or microsurgical ligation was used...
March 2024: Neurosurgical Focus
#28
JOURNAL ARTICLE
Tobias Rossmann, Michael Veldeman, Elias Oulasvirta, Ville Nurminen, Philip-Rudolf Rauch, Andreas Gruber, Martin Lehecka, Mika Niemelä, Jussi Numminen, Rahul Raj
OBJECTIVE: In contrast to high-grade dural arteriovenous fistula (dAVF), low-grade dAVF is mainly associated with tinnitus and carries a low risk of morbidity and mortality. It remains unclear whether the benefits of active interventions outweigh the associated risk of complications in low-grade dAVF. METHODS: The authors conducted a retrospective single-center study that included all consecutive patients diagnosed with an intracranial low-grade dAVF (Cognard type I and IIa) during 2012-2022 with DSA...
March 2024: Neurosurgical Focus
#29
REVIEW
Clara Cohen, Stéphanie Lenck, Atika Talbi, Héloïse Ifergan, Kévin Premat, Grégoire Boulouis, Kévin Janot, Anne-Laure Boch, Christophe Magni, Denis Herbreteau, Nader Sourour, Eimad Shotar, Valère Barrot, Frédéric Clarençon
OBJECTIVE: The pathogenesis of intracranial dural arteriovenous fistulas (icDAVFs) is controversial. Cerebral vein thrombosis (CVT) and venous hypertension are recognized predisposing factors. This study aimed to evaluate the incidence of association between icDAVF and CVT and describe baseline aggressiveness and clinical outcomes for icDAVFs associated with CVT. The authors also performed a literature review of studies reporting icDAVF associated with CVT. METHODS: Two hundred sixty-three consecutive patients in two university hospitals with confirmed icDAVFs were included...
March 2024: Neurosurgical Focus
#30
JOURNAL ARTICLE
Benjamin Beyersdorf, Stefanos Voglis, Guoming Zhao, Johannes Sarnthein, Luca Regli, Menno R Germans
OBJECTIVE: Endovascular and microsurgical treatment are viable options for the majority of Borden type III dural arteriovenous fistulas (dAVFs). The aim of this study was to examine treatment outcomes in a comparative analysis of endovascular and surgical treatment modalities for Borden type III fistulas and explore clinical implications of the DES scheme in selecting ideal candidates for surgical therapy. METHODS: Patients diagnosed with dAVFs with leptomeningeal venous drainage admitted to the Departments of Neurosurgery or Neuroradiology of the University Hospital Zurich between January 2014 and October 2021 were included in this study...
March 2024: Neurosurgical Focus
#31
JOURNAL ARTICLE
Anna Maria Auricchio, Francesco Calvanese, Ville Vasankari, Rahul Raj, Camille Louise Claudine Gallé, Mika Niemelä, Martin Lehecka
OBJECTIVE: Surgical treatment of spinal dural arteriovenous fistulas (DAVFs) has been reported to be superior to endovascular treatment in terms of occlusion of the fistula. Despite the increased availability of digital 3D exoscopes, the potential benefits of using an exoscope in spinal DAVF surgery have not been studied. The purpose of this study was to report and compare the results of exoscope- and microscope-assisted surgery for spinal DAVFs. METHODS: All consecutive adult patients (≥ 18 years of age) treated surgically for spinal DAVFs from January 2016 to January 2023 in a tertiary neurosurgical referral center were included...
March 2024: Neurosurgical Focus
#32
JOURNAL ARTICLE
Allison S Liang, Michael T Bounajem, Aaron Shoskes, Ramesh Grandhi
OBJECTIVE: The aim of this study was to examine the presence of concurrent venous thrombosis and COVID-19 infections in patients with dural arteriovenous fistulas (dAVFs). METHODS: An analysis of all patients diagnosed with dAVF via cerebral angiography by the senior author was conducted, with special attention given to the presence of cerebral venous sinus thrombosis (CVST) and COVID-19 infection. General demographics, clinical presentation, presence of CVST, and COVID-19 infection status were reported...
March 2024: Neurosurgical Focus
#33
JOURNAL ARTICLE
Motoyuki Umekawa, Yuki Shinya, Hirotaka Hasegawa, Satoshi Koizumi, Atsuto Katano, Nobuhito Saito
OBJECTIVE: This study aimed to assess the efficacy and safety of stereotactic radiosurgery (SRS) in treating transverse-sigmoid sinus dural arteriovenous fistulas (TSS DAVFs), and to investigate post-SRS sinus patency, focusing on the risk factors associated with treated sinus occlusion. METHODS: Data from 34 patients treated with SRS between January 2006 and April 2023 were analyzed. Detailed angioarchitecture was confirmed using digital subtraction angiography before SRS...
March 2024: Neurosurgical Focus
#34
JOURNAL ARTICLE
Kareem El Naamani, Anand Kaul, Nikolaos Mouchtouris, Adam Hunt, Meah T Ahmed, Saman Sizdahkhani, Shyam Majmundar, Marc Ghanem, M Reid Gooch, Nabeel A Herial, Pascal Jabbour, Robert H Rosenwasser, Stavropoula I Tjoumakaris
OBJECTIVE: With recent advancements in minimally invasive techniques, endovascular embolization has gained popularity as a first-line treatment option for spinal dural arteriovenous fistulas (sDAVFs). The authors present their institution's case series of sDAVFs treated endovascularly and surgically, and they performed a systemic review to assess the outcomes of both modalities of treatment. METHODS: The authors conducted a retrospective observational study of 24 consecutive patients with sDAVFs treated between 2013 and 2023...
March 2024: Neurosurgical Focus
#35
JOURNAL ARTICLE
Seyed Farzad Maroufi, Mohammad Sadegh Fallahi, Moein Ghasemi, Jason P Sheehan
OBJECTIVE: Stereotactic radiosurgery (SRS) has been established as a safe and alternative treatment for dural arteriovenous fistulas (dAVFs). While embolization alone is the most commonly used modality for the treatment of dAVFs, the adjunctive use of embolization with SRS, with the growing use of SRS, has gained increasing interest in the past few years. However, the relative efficacy and safety of SRS combined with embolization versus SRS alone for dAVFs remains uncertain. Hence, this systematic review aimed to evaluate the efficacy of SRS with adjunctive embolization for intracranial dAVFs...
March 2024: Neurosurgical Focus
#36
JOURNAL ARTICLE
A Yohan Alexander, Nitesh P Patel, Harry J Cloft, Giuseppe Lanzino, Waleed Brinjikji
OBJECTIVE: Dural arteriovenous fistulas (dAVFs) of the superior sagittal sinus (SSS) are uncommon and represent 5%-12% of all intracranial dAVFs. SSS dAVFs can be divided into two main subtypes. The first type involves direct arterialization of the SSS, whereas the second type consists of a parasagittal arteriovenous shunt draining into a cortical vein directly lateral to the SSS and has retrograde cortical venous drainage with only secondary involvement of the SSS. Descriptions of the latter type of SSS dAVF are limited...
March 2024: Neurosurgical Focus
#37
JOURNAL ARTICLE
Anna Gerasimenko, Cyril Mignot, Olivier Naggara, Florence Coulet, Samar Ekram, Solveig Heide, Clarisse Sorato, Maxime Mazowiecki, Laurence Perrin, Chrystelle Colas, Veronica Cusin, Frédéric Caux, Antoine Dardenne, Salima El Chehadeh, Alain Verloes, Hélène Maurey, Alexandra Afenjar, Florence Petit, Stéphane Barete, Odile Boespflug-Tanguy, Emmanuelle Bourrat, Yline Capri, Viorica Ciorna, Wallid Deb, Diane Doummar, Alexandre Perrier, Alexis Guédon, Emmanuel Houdart, Bertrand Isidor, Marie-Line Jacquemont, Camille Buffet, Sandra Mercier, Sandrine Passemard, Audrey Riquet, Lyse Ruaud, Elise Schaefer, Delphine Heron, Annouk Bisdorff, Patrick R Benusiglio
Central nervous system (CNS) dural arteriovenous fistulas (DAVF) have been reported in PTEN-related hamartoma tumor syndrome (PHTS). However, PHTS-associated DAVF remain an underexplored field of the PHTS clinical landscape. Here, we studied cases with a PTEN pathogenic variant identified between 2007 and 2020 in our laboratory (n = 58), and for whom brain imaging was available. Two patients had DAVF (2/58, 3.4%), both presenting at advanced stages: a 34-year-old man with a left lateral sinus DAVF at immediate risk of hemorrhage, and a 21-year-old woman with acute intracranial hypertension due to a torcular DAVF...
February 29, 2024: Clinical Genetics
#38
Eri Shiozaki, Yoichi Morofuji, Tsuyoshi Izumo, Takayuki Matsuo
Arterial spin labeling (ASL) and three-dimensional (3D) time-of-flight (TOF) magnetic resonance angiography (MRA) are sensitive tools to detect dural arteriovenous fistula (DAVF), but hyperintensity in these images is also caused by jugular venous reflux. We present a case of a patient with renal failure on hemodialysis with retrograde flow into the internal jugular vein (IJV) mimicking DAVF. A 74-year-old man with a radial arteriovenous fistula for hemodialysis experienced transient dizziness. The TOF MRA and ASL revealed high signal intensity, suggesting the presence of a DAVF in the left transverse and sigmoid sinuses and the IJV...
January 2024: Curēus
#39
REVIEW
Jaims Lim, Brianna M Donnelly, Vinay Jaikumar, Marissa D Kruk, Cathleen C Kuo, Andre Monteiro, Manhal Siddiqi, Ammad A Baig, Devan Patel, Kunal P Raygor, Kenneth V Snyder, Jason M Davies, Elad I Levy, Adnan H Siddiqui
BACKGROUND: Intracranial dural arteriovenous fistulas (dAVFs) are abnormal connections between arteries and veins within the dura mater. Various treatment modalities, such as surgical ligation, endovascular intervention, and radiosurgery, aim to close the fistulous connection. Although transvenous embolization (TVE) is the preferred method for carotid-cavernous fistulas, its description and outcomes for noncavernous dAVFs vary. This has prompted a systematic review and meta-analysis to comprehensively assess the effectiveness of TVE in treating noncavernous dAVFs, addressing variations in outcomes and techniques...
February 28, 2024: Interventional Neuroradiology
#40
JOURNAL ARTICLE
Xin Su, Zihao Song, Tianqi Tu, Ming Ye, Hongqi Zhang, Yongjie Ma, Peng Zhang
BACKGROUND: Isolated sinus dural arteriovenous fistulas (DAVFs) constitute a rare and distinctive subtype of DAVF, typically found in small case numbers or case reports. The optimal treatment for this DAVF type remains unclear. OBJECTIVE: This study aims to further detail the treatment outcomes of isolated sinus DAVFs in a sizable cohort from a single center. METHODS: A retrospective study was undertaken on a consecutive series of patients with isolated sinus DAVFs treated at a single institution from 2002 to 2022...
February 21, 2024: Acta Neurochirurgica
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