Intracranial dural arteriovenous fistulas: association with cerebral venous thrombosis, baseline aggressiveness, and clinical outcomes. A retrospective multicenter study on 263 consecutive patients and literature review
CONCLUSIONS: This was one of the largest studies focused on the incidence of CVT associated with icDAVF. For 6.8% of the patients, a natural history of CVT leading to icDAVF was proven, corresponding to 78.3% of patients with previous imaging available. This work offers further insights into icDAVF pathophysiology, aiding in identifying high-risk CVT patients for long-term follow-up imaging. Annual imaging follow-up using noninvasive vascular imaging (CT or MR angiography) for a minimum of 3 years after the diagnosis of CVT should be considered in high-risk patients, i.e., smokers and those with prothrombogenic status.PMID...
Source: Neurosurgical Focus - March 1, 2024 Category: Neurosurgery Authors: Clara Cohen St éphanie Lenck Atika Talbi H éloïse Ifergan K évin Premat Gr égoire Boulouis K évin Janot Anne-Laure Boch Christophe Magni Denis Herbreteau Nader Sourour Eimad Shotar Val ère Barrot Fr édéric Clarençon Source Type: research

Long-term treatment outcomes and natural course of low-grade intracranial dural arteriovenous fistulas
CONCLUSIONS: Treatment of low-grade dAVF provides a high rate of symptom relief with small risks for complications with neurological sequela. The risks of ICH and mortality in patients with untreated low-grade dAVF are minimal. Symptoms may not reveal high-grade recurrence, and radiological follow-up may be warranted in selected patients with treated low-grade dAVF. An optimal radiographic follow-up regimen should be developed by a future prospective multicenter registry.PMID:38428004 | DOI:10.3171/2024.1.FOCUS23767 (Source: Neurosurgical Focus)
Source: Neurosurgical Focus - March 1, 2024 Category: Neurosurgery Authors: Tobias Rossmann Michael Veldeman Elias Oulasvirta Ville Nurminen Philip-Rudolf Rauch Andreas Gruber Martin Lehecka Mika Niemel ä Jussi Numminen Rahul Raj Source Type: research

Letter to the Editor. Surgical strategies for basilar invagination with or without atlantoaxial instability
Neurosurg Focus. 2024 Mar;56(3):E19. doi: 10.3171/2023.11.FOCUS23789.NO ABSTRACTPMID:38428006 | DOI:10.3171/2023.11.FOCUS23789 (Source: Neurosurgical Focus)
Source: Neurosurgical Focus - March 1, 2024 Category: Neurosurgery Authors: Qiang Jian Tao Fan Source Type: research

A contemporary analysis of surgical ligation versus endovascular embolization in patients with intracranial dural arteriovenous fistulas: a propensity score-matched and mixed-effects model study
CONCLUSIONS: Surgical approach may influence perioperative outcomes in patients treated for intracranial dAVF-most significantly discharge disposition and 1-year readmission. Future longitudinal prospective studies with more clinical detail will be required to fully capture the predictive utility of surgical approach in patients treated for intracranial dAVF, particularly for various dAVF subtypes.PMID:38428007 | DOI:10.3171/2023.12.FOCUS23774 (Source: Neurosurgical Focus)
Source: Neurosurgical Focus - March 1, 2024 Category: Neurosurgery Authors: Shane Shahrestani Michelot Michel Maria Paula Aguilera-Pena Miguel D Quintero-Consuegra Nestor R Gonzalez Source Type: research

Letter to the Editor. Platelet transfusion, not just platelets
Neurosurg Focus. 2024 Mar;56(3):E18. doi: 10.3171/2023.10.FOCUS23718.NO ABSTRACTPMID:38428009 | DOI:10.3171/2023.10.FOCUS23718 (Source: Neurosurgical Focus)
Source: Neurosurgical Focus - March 1, 2024 Category: Neurosurgery Authors: Yao Sun Huiying Zhao Youzhong An Source Type: research

Evaluating the diagnostic accuracy of 3D contrast-enhanced magnetic resonance angiography versus digital subtraction angiography in spinal dural arteriovenous fistulas
CONCLUSIONS: In surgically proven cases of SDAVFs, the authors determined that MRA was more accurate than DSA for SDAVF diagnosis and localization to the corresponding vertebral level. Incomplete catheterization at each vertebral level may result in the failure of DSA to detect SDAVF.PMID:38428010 | DOI:10.3171/2023.12.FOCUS23749 (Source: Neurosurgical Focus)
Source: Neurosurgical Focus - March 1, 2024 Category: Neurosurgery Authors: Adham M Khalafallah Joseph Yunga Tigre Nadine Rady Robert M Starke Efrat Saraf-Lavi Allan D Levi Source Type: research

Microsurgical versus endovascular treatment of ethmoidal dural arteriovenous fistulas: systematic review and meta-analysis with a single-center case series
CONCLUSIONS: The complete obliteration rates of ethmoidal DAVF appear to be higher and more definitive with microsurgical intervention than with EVT. While complication rates between the two procedures seem similar, patients treated with EVT may require further interventions for definitive treatment. The limitations of this study include its retrospective nature, the quality of studies included, and the continued evolving technologies of EVT. Future studies should focus on the association between venous drainage pattern and the proclivity toward venous ectasia or rate of hemorrhage at presentation.PMID:38428011 | DOI:10.31...
Source: Neurosurgical Focus - March 1, 2024 Category: Neurosurgery Authors: Chandler N Berke Anant Naik Neil Majmundar Sean Munier Raphia Rahman Ahsan Sattar Priyank Khandelwal James K Liu Source Type: research

Dural arteriovenous fistulas are not observed to convert to a higher grade after partial embolization
CONCLUSIONS: Partial treatment of type I dAVFs does not appear to be significantly associated with conversion to a higher grade.PMID:38428013 | DOI:10.3171/2024.1.FOCUS23745 (Source: Neurosurgical Focus)
Source: Neurosurgical Focus - March 1, 2024 Category: Neurosurgery Authors: 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 Micha Source Type: research

Long-term outcome of endovascular treatment for indirect carotid-cavernous fistulas
CONCLUSIONS: In this study, complete obliteration of an indirect CCF was achieved in more than 90% of patients. Despite the occurrence of some new postprocedural ocular CN palsy, ocular symptoms improved in most patients in long-term follow-up. The transvenous approach was the most effective method for treating the indirect CCF. Coiling was safer than LEAs for the embolization of the indirect CCF.PMID:38427986 | DOI:10.3171/2023.12.FOCUS23795 (Source: Neurosurgical Focus)
Source: Neurosurgical Focus - March 1, 2024 Category: Neurosurgery Authors: Humain Baharvahdat Farid Qoorchi Moheb Seraj Amira Al-Raaisi Raphael Blanc Sajjad Najafi Mohammad Hossein Mirbolouk Hocine Redjem Feizollah Ebrahimnia Simon Escalard Samira Zabihyan Jean-Philipe Desilles Ashkan Mowla Willian Boisseau Mikael Mazighi Stanis Source Type: research

Clinical and radiological features of parasagittal dural arteriovenous fistulas: a report of 8 cases from a single institution
CONCLUSIONS: Treatment of parasagittal dAVFs consists of occluding the proximal portion of the parasagittal arterialized draining vein. Endovascular therapy with liquid embolic agents is usually the first line of treatment. Surgical ligation is a valid option if the fistula cannot be successfully obliterated with embolization. Symptoms related to the SSS dAVF resolve after their obliteration.PMID:38427987 | DOI:10.3171/2023.12.FOCUS23792 (Source: Neurosurgical Focus)
Source: Neurosurgical Focus - March 1, 2024 Category: Neurosurgery Authors: A Yohan Alexander Nitesh P Patel Harry J Cloft Giuseppe Lanzino Waleed Brinjikji Source Type: research

Stereotactic radiosurgery with versus without embolization for intracranial dural arteriovenous fistulas: a systematic review and meta-analysis
CONCLUSIONS: This study provides evidence that adjunctive embolization plus SRS provides similar obliteration and symptom improvement rates compared with SRS alone, with both having very limited SRS-related adverse events. Considering the added burden and adverse events of additional endovascular treatment, the authors recommend embolization be reserved for more complex dAVFs or when embolization can potentially be curative alone or provide more rapid symptomatic relief or protection during the radiosurgical latency period.PMID:38427988 | DOI:10.3171/2023.12.FOCUS23797 (Source: Neurosurgical Focus)
Source: Neurosurgical Focus - March 1, 2024 Category: Neurosurgery Authors: Seyed Farzad Maroufi Mohammad Sadegh Fallahi Moein Ghasemi Jason P Sheehan Source Type: research

Comparison between endovascular and surgical treatment of spinal dural arteriovenous fistulas: a single-center cohort and systematic review
CONCLUSIONS: Endovascular embolization in the management of sDAVFs is an alternative treatment to surgery, whose long-term efficacy is still under investigation. These findings suggest overall comparable outcomes between endovascular and open surgical treatment of sDAVFs. Future studies are needed to determine the role of endovascular embolization in the overall management of sDAVFs.PMID:38427989 | DOI:10.3171/2023.12.FOCUS23747 (Source: Neurosurgical Focus)
Source: Neurosurgical Focus - March 1, 2024 Category: Neurosurgery Authors: 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 Source Type: research

The negative impact of treatment delays on the long-term neurological outcomes of spinal dural arteriovenous fistulas: a longitudinal cohort study
CONCLUSIONS: Both surgical and endovascular treatments for sdAVFs led to significant neurological improvements. However, treatment delays were associated with less favorable long-term outcomes. Prompt diagnosis and early intervention prior to symptom progression may enhance recovery and help to preserve neurological function.PMID:38427990 | DOI:10.3171/2023.12.FOCUS23703 (Source: Neurosurgical Focus)
Source: Neurosurgical Focus - March 1, 2024 Category: Neurosurgery Authors: Victor Gabriel El-Hajj Cornelia Daller Alexander Fletcher-Sandersj öö Maria Gharios Mohamad Bydon Michael S öderman Pascal Jabbour Erik Edstr öm Adrian Elmi-Terander Fabian Arnberg Source Type: research

Safety evaluation of sinus patency after stereotactic radiosurgery for transverse-sigmoid sinus dural arteriovenous fistulas: implications of treatment options for patients with Borden type I fistulas
CONCLUSIONS: SRS is effective and safe for TSS DAVF and results in favorable shunt obliteration, symptom improvement, and low complication rates. TSS occlusion after SRS is asymptomatic and is limited to sinuses that are not used for normal venous drainage.PMID:38427991 | DOI:10.3171/2023.12.FOCUS23802 (Source: Neurosurgical Focus)
Source: Neurosurgical Focus - March 1, 2024 Category: Neurosurgery Authors: Motoyuki Umekawa Yuki Shinya Hirotaka Hasegawa Satoshi Koizumi Atsuto Katano Nobuhito Saito Source Type: research

Dural arteriovenous fistula in the setting of cerebral venous sinus thrombosis and COVID-19 infection
CONCLUSIONS: COVID-19 infections may pose as an emerging risk factor for the development of CVST and subsequent dAVF development. To the authors' knowledge, this study presents the first cases in the literature describing a temporal relationship between COVID-19 and development of a dAVF with CVST. The effect of both COVID-19 and associated vaccines should be further assessed in future studies to examine its impact as an effect modifier on the association of dAVF and CVST.PMID:38427997 | DOI:10.3171/2023.12.FOCUS23794 (Source: Neurosurgical Focus)
Source: Neurosurgical Focus - March 1, 2024 Category: Neurosurgery Authors: Allison S Liang Michael T Bounajem Aaron Shoskes Ramesh Grandhi Source Type: research