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  1. Article ; Online: Posterior Inferior Cerebellar Artery Excision and End-to-End Reanastomosis for Treatment of a Giant, Partially Thrombosed Aneurysm: 2-Dimensional Operative Video.

    Quach, Eric T / Dehdashti, Amir R

    Operative neurosurgery (Hagerstown, Md.)

    2023  Volume 25, Issue 4, Page(s) e219–e220

    MeSH term(s) Humans ; Vertebral Artery/surgery ; Aneurysm
    Language English
    Publishing date 2023-06-22
    Publishing country United States
    Document type Video-Audio Media ; Journal Article
    ZDB-ID 2767575-0
    ISSN 2332-4260 ; 2332-4252
    ISSN (online) 2332-4260
    ISSN 2332-4252
    DOI 10.1227/ons.0000000000000792
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 1424 -ON-: Show issues Location:
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  2. Article ; Conference proceedings: Brainstem Mapping in Addition to the One-Point Method for Resection of Brainstem Cavernomas

    Quach, Eric T. / Dehdashti, Amir R.

    Journal of Neurological Surgery Part B: Skull Base

    2024  Volume 85, Issue S 01

    Event/congress 33rd Annual Meeting North American Skull Base Society, Atlanta Marriott Marquis Atlanta, Georgia, United States, 2024-02-16
    Language English
    Publishing date 2024-02-01
    Publisher Georg Thieme Verlag KG
    Publishing place Stuttgart ; New York
    Document type Article ; Conference proceedings
    ZDB-ID 2654269-9
    ISSN 2193-634X ; 2193-6331
    ISSN (online) 2193-634X
    ISSN 2193-6331
    DOI 10.1055/s-0044-1780391
    Database Thieme publisher's database

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 3425: Show issues Location:
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  3. Article ; Online: Commentary: Single-Center Experience Using a 3D4K Digital Operating Scope System for Aneurysm Surgery.

    Quach, Eric T / Almefty, Rami O

    Operative neurosurgery (Hagerstown, Md.)

    2022  Volume 22, Issue 6, Page(s) e262–e263

    MeSH term(s) Humans ; Intracranial Aneurysm/surgery
    Language English
    Publishing date 2022-04-05
    Publishing country United States
    Document type Journal Article ; Comment
    ZDB-ID 2767575-0
    ISSN 2332-4260 ; 2332-4252
    ISSN (online) 2332-4260
    ISSN 2332-4252
    DOI 10.1227/ons.0000000000000203
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    Zs.A 1424 -ON-: Show issues Location:
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  4. Article ; Conference proceedings: The Sitting Position in Skull Base Surgery: Analysis of the Risks and Surgical Outcomes in a Contemporary Series

    Quach, Eric T. / Dehdashti, Amir R.

    Journal of Neurological Surgery Part B: Skull Base

    2023  Volume 84, Issue S 01

    Event/congress 32nd Annual Meeting North American Skull Base Society, JW Marriott Tampa Water Street, Tampa, Florida, United States, 2023-02-17
    Language English
    Publishing date 2023-02-01
    Publisher Georg Thieme Verlag KG
    Publishing place Stuttgart ; New York
    Document type Article ; Conference proceedings
    ZDB-ID 2654269-9
    ISSN 2193-634X ; 2193-6331
    ISSN (online) 2193-634X
    ISSN 2193-6331
    DOI 10.1055/s-0043-1762442
    Database Thieme publisher's database

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    In stock of ZB MED Cologne/Königswinter

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  5. Article ; Conference proceedings: Far Lateral Transcondylar Approach for Resection of a Foramen Magnum Meningioma

    Quach, Eric T. / Dehdashti, Amir R.

    Journal of Neurological Surgery Part B: Skull Base

    2023  Volume 84, Issue S 01

    Event/congress 32nd Annual Meeting North American Skull Base Society, JW Marriott Tampa Water Street, Tampa, Florida, United States, 2023-02-17
    Language English
    Publishing date 2023-02-01
    Publisher Georg Thieme Verlag KG
    Publishing place Stuttgart ; New York
    Document type Article ; Conference proceedings
    ZDB-ID 2654269-9
    ISSN 2193-634X ; 2193-6331
    ISSN (online) 2193-634X
    ISSN 2193-6331
    DOI 10.1055/s-0043-1762529
    Database Thieme publisher's database

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 3425: Show issues Location:
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  6. Article ; Conference proceedings: PICA–PICA Reimplantation for the Treatment of a Partially Thrombosed Pica Aneurysm

    Quach, Eric T. / Dehdashti, Amir R.

    Journal of Neurological Surgery Part B: Skull Base

    2023  Volume 84, Issue S 01

    Event/congress 32nd Annual Meeting North American Skull Base Society, JW Marriott Tampa Water Street, Tampa, Florida, United States, 2023-02-17
    Language English
    Publishing date 2023-02-01
    Publisher Georg Thieme Verlag KG
    Publishing place Stuttgart ; New York
    Document type Article ; Conference proceedings
    ZDB-ID 2654269-9
    ISSN 2193-634X ; 2193-6331
    ISSN (online) 2193-634X
    ISSN 2193-6331
    DOI 10.1055/s-0043-1762544
    Database Thieme publisher's database

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 3425: Show issues Location:
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  7. Article ; Conference proceedings: Interhemispheric Transcallosal Approach for Resection of a Giant Pituitary Adenoma

    Quach, Eric T. / Dehdashti, Amir R.

    Journal of Neurological Surgery Part B: Skull Base

    2023  Volume 84, Issue S 01

    Event/congress 32nd Annual Meeting North American Skull Base Society, JW Marriott Tampa Water Street, Tampa, Florida, United States, 2023-02-17
    Language English
    Publishing date 2023-02-01
    Publisher Georg Thieme Verlag KG
    Publishing place Stuttgart ; New York
    Document type Article ; Conference proceedings
    ZDB-ID 2654269-9
    ISSN 2193-634X ; 2193-6331
    ISSN (online) 2193-634X
    ISSN 2193-6331
    DOI 10.1055/s-0043-1762524
    Database Thieme publisher's database

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 3425: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
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  8. Article ; Conference proceedings: Resection of a Clinoidal Meningioma Encasing the Internal Carotid Artery

    Quach, Eric T. / Dehdashti, Amir R.

    Journal of Neurological Surgery Part B: Skull Base

    2023  Volume 84, Issue S 01

    Event/congress 32nd Annual Meeting North American Skull Base Society, JW Marriott Tampa Water Street, Tampa, Florida, United States, 2023-02-17
    Language English
    Publishing date 2023-02-01
    Publisher Georg Thieme Verlag KG
    Publishing place Stuttgart ; New York
    Document type Article ; Conference proceedings
    ZDB-ID 2654269-9
    ISSN 2193-634X ; 2193-6331
    ISSN (online) 2193-634X
    ISSN 2193-6331
    DOI 10.1055/s-0043-1762531
    Database Thieme publisher's database

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 3425: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
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  9. Article ; Online: Far Lateral Approach With C1 Hemilaminotomy for Excision of a Ruptured Fusiform Lateral Spinal Artery Aneurysm: 2-Dimensional Operative Video.

    Papadimitriou, Kyriakos / Quach, Eric T / Golub, Danielle / Patsalides, Athos / Dehdashti, Amir R

    Operative neurosurgery (Hagerstown, Md.)

    2024  

    Abstract: The lateral spinal artery (LSA) represents the most rostral extent of the posterolateral arterial axis of the spinal cord and supplies both the posterior and lateral aspects of the spinal cord.1 The LSA originates from either the intradural segment of ... ...

    Abstract The lateral spinal artery (LSA) represents the most rostral extent of the posterolateral arterial axis of the spinal cord and supplies both the posterior and lateral aspects of the spinal cord.1 The LSA originates from either the intradural segment of vertebral artery or the lateral segment of the posterior inferior cerebellar artery.1,2 It terminates at the level of C5 because it anastomoses with the posterior spinal artery. Although the LSA is in communication with the subarachnoid space, subarachnoid hemorrhage (SAH) due to an LSA aneurysm is rare.3-6 Moreover, accurate diagnosis of vascular pathologies involving the LSA is challenging because the LSA is typically too small to be visualized with conventional angiography.2 Here, we present the case of a 74-year-old woman who presented to our institution with headache, nausea, and confusion due to posterior fossa SAH without any visible vascular malformation on initial diagnostic cerebral angiography. A right frontal external ventricular drain was placed for communicating hydrocephalus. Immediate cerebral angiogram was within normal limits. Two-week follow-up angiogram demonstrated a fusiform right LSA aneurysm. The endovascular treatment was not an option because of the risk of occlusion of proximal perforators of the right posterior spinal artery, resulting in a long segment ischemia. The patient underwent a right far lateral transcondylar approach with C1 hemilaminotomy and excision of the LSA aneurysm. The postoperative course was uneventful. The patient was neurologically intact. Six-month follow-up angiogram showed no evidence of residual aneurysm. LSA pathologies should be kept in mind with posterior fossa SAH. Surgical excision is an effective treatment option in carefully selected patients. The patient consented to the procedure.
    Language English
    Publishing date 2024-03-05
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2767575-0
    ISSN 2332-4260 ; 2332-4252
    ISSN (online) 2332-4260
    ISSN 2332-4252
    DOI 10.1227/ons.0000000000001113
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 1424 -ON-: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
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    Jg. 1995 - 2021: Lesesall (1.OG)
    ab Jg. 2022: Lesesaal (EG)

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  10. Article ; Online: The role of surgical disconnection for posterior fossa pial arteriovenous fistulas and dural fistulas with pial supply: an illustrative case series.

    Golub, Danielle / Lynch, Daniel G / Mehta, Shyle H / Donaldson, Hayley / Shah, Kevin A / White, Timothy G / Quach, Eric T / Papadimitriou, Kyriakos / Kuffer, Alexander F / Woo, Henry H / Link, Thomas W / Patsalides, Athos / Dehdashti, Amir R

    Neurosurgical review

    2024  Volume 47, Issue 1, Page(s) 189

    Abstract: Background: Pial arteriovenous fistulas (pAVFs) are rare vascular malformations characterized by high-flow arteriovenous shunting involving a cortical arterial supply directly connecting to venous drainage without an intermediate nidus. Dural ... ...

    Abstract Background: Pial arteriovenous fistulas (pAVFs) are rare vascular malformations characterized by high-flow arteriovenous shunting involving a cortical arterial supply directly connecting to venous drainage without an intermediate nidus. Dural arteriovenous fistulas (dAVFs) can infrequently involve additional pial feeders which can introduce higher flow shunting and increase the associated treatment risk. In the posterior fossa, arteriovenous fistula (AVF) angioarchitecture tends to be particularly complex, involving either multiple arterial feeders-sometimes from both dural and pial origins-or small caliber vessels that are difficult to catheterize and tend to be intimately involved with functionally critical brainstem or upper cervical cord structures. Given their rarity, published experience on microsurgical or endovascular treatment strategies for posterior fossa pAVFs and dAVFs with pial supply remains limited.
    Methods: Retrospective chart review from 2019-2023 at a high-volume center identified six adult patients with posterior fossa pAVFs that were unable to be fully treated endovascularly and required microsurgical disconnection. These cases are individually presented with a technical emphasis and supported by comprehensive angiographic and intraoperative images.
    Results: One vermian (Case 1), three cerebellopontine angle (Cases 2-4) and two craniovertebral junction (Cases 5-6) posterior fossa pAVFs or dAVFs with pial supply are presented. Three cases involved mixed dural and pial arterial supply (Cases 1, 4, and 6), and one case involved a concomitant microAVM (Case 2). Endovascular embolization was attempted in four cases (Cases 1-4): The small caliber and tortuosity of the main arterial feeder prevented catheterization in two cases (Cases 1 and 3). Partial embolization was achieved in Cases 2 and 4. In Cases 5 and 6, involvement of the lateral spinal artery or anterior spinal artery created a prohibitive risk for endovascular embolization, and surgical clip ligation was pursued as primary management. In all cases, microsurgical disconnection resulted in complete fistula obliteration without evidence of recurrence on follow-up imaging (mean follow-up 27.1 months). Two patients experienced persistent post-treatment sensory deficits without significant functional limitation.
    Conclusions: This illustrative case series highlights the technical difficulties and anatomical limitations of endovascular management for posterior fossa pAVFs and dAVFs with pial supply and emphasizes the relative safety and utility of microsurgical disconnection in this context. A combined approach involving partial preoperative embolization-when the angioarchitecture is permissive-can potentially decrease surgical morbidity. Larger studies are warranted to better define the role for multimodal intervention and to assess associated long-term AVF obliteration rates in the setting of pial arterial involvement.
    MeSH term(s) Humans ; Male ; Female ; Middle Aged ; Central Nervous System Vascular Malformations/surgery ; Aged ; Pia Mater/blood supply ; Pia Mater/surgery ; Retrospective Studies ; Adult ; Arteriovenous Fistula/surgery ; Cranial Fossa, Posterior/surgery ; Neurosurgical Procedures/methods ; Embolization, Therapeutic/methods ; Intracranial Arteriovenous Malformations/surgery
    Language English
    Publishing date 2024-04-25
    Publishing country Germany
    Document type Journal Article ; Case Reports
    ZDB-ID 6907-3
    ISSN 1437-2320 ; 0344-5607
    ISSN (online) 1437-2320
    ISSN 0344-5607
    DOI 10.1007/s10143-024-02407-y
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 1445: Show issues Location:
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