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Introduction: Dural arteriovenous fistulas (dAVF) are abnormal anastomoses between meningeal arteries and dural venous sinuses. Typically, dAVF treatment involves an endovascular or microsurgical approach. Anterior ethmoidal artery (AEA) dAVFs pose unique challenges due to their anatomy and location.

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Background: Trans-arterial embolization (TAE) via the ophthalmic artery and middle meningeal arterial are the common arterial routes for anterior cranial fossa (ACF) dural arteriovenous fistulas (DAVFs). However, TAE via the sphenopalatine artery (SPA) to treat ACF DAVFs is rarely reported. Here, we describe 14 cases of ACF DAVFs that were either treated solely or in conjunction with other arterial routes via the SPA.

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Background: The Onyx™ Liquid Embolic System is a non-adhesive liquid embolic agent, which has been proved by the US FDA for embolization of lesions in the peripheral and neurovasculature since 2005. We reported a case of ischemic optic neuropathy after using Onyx-18 to embolize the anterior ethmoid arteries that feeding dural arteriovenous fistulas (DAVF).

Case Presentation: A 57-year-old Asian male presented with anterior cranial fossa DAVF underwent embolotherapy by delivering Onyx-18 through a microcatheter into the anterior ethmoid arteries under angiography guidance.

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Background: This report analyzes traumatic anterior skull base CSF leaks following nasopharyngeal swab testing for detection of SARS-CoV-2 in the largest case series to date, combined with a systematic literature review.

Methods: Retrospective multi-institutional case-series of traumatic anterior skull base CSF leak with clear antecedent history of COVID-19 swab was completed. A comprehensive search of databases was performed for the systematic literature review.

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Article Synopsis
  • Endoscopic sinus surgery (ESS) is crucial for treating odontogenic sinusitis (ODS), particularly in cases involving the frontal sinus, but the effectiveness of different surgical extents needs further study.
  • A multicenter study compared the outcomes of wide maxillary antrostomy (MA) against complete ESS in patients with ODS who showed involvement of frontal and anterior ethmoid sinuses.
  • The results indicated that, while both surgical methods led to significant symptom relief, complete ESS had a faster resolution of anterior ethmoidal sinus purulence compared to MA alone, although long-term outcomes were similar between the two groups.
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