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  • Online Resource  (6)
  • Ovid Technologies (Wolters Kluwer Health)  (6)
  • Meyer, Benjamen M.  (6)
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  • Online Resource  (6)
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  • Ovid Technologies (Wolters Kluwer Health)  (6)
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  • 1
    Online Resource
    Online Resource
    Abstract 138: Use of a 046” Intermediate Guide Catheter for Mini‐Triaxial Access in Flow Diversion: Multi‐institution Experience
    Ovid Technologies (Wolters Kluwer Health) ; 2023
    In:  Stroke: Vascular and Interventional Neurology Vol. 3, No. S2 ( 2023-11)
    Details
    In: Stroke: Vascular and Interventional Neurology, Ovid Technologies (Wolters Kluwer Health), Vol. 3, No. S2 ( 2023-11)
    Abstract: The latest FDA‐approved intermediate guide catheter, Vecta46, allows for a unique, mini‐triaxial access platform. The size of this catheter allows for 058” guide compatibility, intraluminal accommodation of an 027” microcatheter for flow diverter delivery, and angiographic procedural injections in an 070” guide catheter. Methods We retrospectively identified and analyzed patients who underwent Surpass Evolve flow diversion treatment utilizing the Vecta46 across the senior authors’ institutions. Results The use of the Vecta46 was identified for treatment of 9 aneurysms treated with the Surpass Evolve Flow Diverter (March to April 2023), in patient’s aged 61±3.5 years (range 40‐74 years) with 89% (n=8) female. Aneurysm average size of 4.3±0.47mm, aneurysms originating along the internal carotid artery (n=6) and MCA branches (n=4). Preoperative PRU measured 92 ± 21. Radial access was utilized in 2 cases. Mean Surpass Evolve utilized was 4.4±0.17mm (diameter) by 15.7±0.88mm (length). An 071” guide catheter (Armadillo, Q’Appel Medical) was used in 8 cases. Vecta46 was safely navigated to the supraclinoid ICA segment in all cases. Average fluoroscopy time was 24±3.1 minutes, radiation exposure was 756±259mGy, and verapamil was used in all cases. Technical success was achieved in all cases with adequate vessel wall apposition verified. There were no hemorrhagic complications nor parent vessel wall dissection or vasospasm in the region of the Vecta46 catheter on final control angiography in all 9 cases. Conclusion The new low‐profile Vecta46 intermediate catheter can be safely and effectively utilized in a 6‐French mini‐triaxial system for flow diverter delivery without compromising injection quality, support, or trackability.
    Type of Medium: Online Resource
    ISSN: 2694-5746
    URL: Article
    DOI: 10.1161/SVIN.03.suppl_2.138
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2023
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  • 2
    Online Resource
    Online Resource
    Abstract 139: Super Distal Access using the Vecta46 Intermediate Catheter in Embolization of the MMA for cSDH
    Ovid Technologies (Wolters Kluwer Health) ; 2023
    In:  Stroke: Vascular and Interventional Neurology Vol. 3, No. S2 ( 2023-11)
    Details
    In: Stroke: Vascular and Interventional Neurology, Ovid Technologies (Wolters Kluwer Health), Vol. 3, No. S2 ( 2023-11)
    Abstract: There is increasing literature to support the efficacy of middle meningeal artery (MMA) embolization in the treatment of chronic subdural hematomas (cSDH). Techniques for optimal embolization of the MMA are yet to be elucidated. We hypothesized utilization of a novel 046” intermediate catheter within the proximal MMA trunk carry procedural advantages for multiple pedicle embolizations and ease of navigation to distal MMA vasculature. Methods We retrospectively reviewed and analyzed a prospectively maintained IRB‐approved database of the senior authors. Results Twenty‐one (21) consecutive cases of Vecta46 utilization with MMA embolization were identified (2023), in patients 69±13 years (range 49‐83 years), 4 (19%) women. Four (19%) patients were on antiplatelet/anticoagulants. At presentation, recurrent cSDH in 9 patients (43%) were previously managed with burr holes (n=2, 22%), craniotomy (n=3, 33%), or without drainage (n=4, 44%). Average admission cSDH thickness was 8.8±1.6mm, midline shift of 3±0.7mm. Access was performed through a 5‐ or 6‐French arteriotomy. Both anterior and posterior MMA branches were embolized in 16 (76%) cases, and adjunctive coiling of the proximal MMA trunk was performed in all cases. Vecta46 was successfully placed in the proximal MMA trunk in all cases. There were no vessel irregularities, vasospasm, or dissection noted along the course of the MMA Vecta46 placement. No immediate procedural complications were noted and all cases achieved complete distal MMA occlusion. Figure 1: (A) Ophthalmic (black) and petrous (white) collaterals off the anterior and posterior MMA branches, respectively. (B) Contralateral (green) and falx (orange) penetration of the MMA branches. (C) Proximal coiling of the anterior and posterior MMA branches (black). Conclusion The Vecta46 intermediate catheter is a powerful tool for MMA embolization that allows the safe and effective placement of an intermediate catheter in the proximal MMA trunk. This allows for simple catheter exchange for multiple liquid embolic pedicle embolizations and significant support for navigating microcatheters to distal MMA branches.
    Type of Medium: Online Resource
    ISSN: 2694-5746
    URL: Article
    DOI: 10.1161/SVIN.03.suppl_2.139
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2023
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  • 3
    Online Resource
    Online Resource
    Abstract 140: Additive Contralateral MMA Injection for Recurrent Previously Operated cSDH: Experience in 8 Consecutive Cases
    Ovid Technologies (Wolters Kluwer Health) ; 2023
    In:  Stroke: Vascular and Interventional Neurology Vol. 3, No. S2 ( 2023-11)
    Details
    In: Stroke: Vascular and Interventional Neurology, Ovid Technologies (Wolters Kluwer Health), Vol. 3, No. S2 ( 2023-11)
    Abstract: Middle meningeal artery (MMA) embolization has emerged as an adjunctive treatment in the management of chronic subdural hematomas (cSDH). After surgical cSDH evacuation, embolization offers enhanced resorption of cSDH fluid by infarcting the neomembranes at the capillary level. MMA embolization is typically performed on the side ipsilateral to the cSDH, but in the setting of recent surgical evacuation, the ipsilateral meningeal circulation is oftentimes disrupted and/or collateralized. In this situation, penetration of the membranes via an over‐the‐top contralateral injection may provide additional MMA occlusion and efficacy. Methods Consecutive cases of unilateral cSDH surgery with contralateral liquid embolic injection were retrospectively identified from a prospectively maintained database of the senior authors. Results Eight consecutive cases of recurrent cSDH after surgery were identified (average age = 76±3.5 years, all male). Five subjects (63%) had a previous craniotomy and 3 (38%) had previous burr holes. All subjects had a contralateral MMA embolization in addition to an ipsilateral MMA embolization with regards to their previous index surgery. Average recurrent cSDH thickness was 9.8±1.4mm, midline shift of 1.8±0.9mm. MMA branches embolized included both anterior and posterior (n=5, 63%) anterior only (n=2, 25%), and posterior only (n=1, 12.5%). The falx was penetrated in the contralateral MMA embolization in 3 (38%) cases. Injection of glue across the midline to previously non‐penetrated dura on the index surgery side was successfully achieved in all 8 cases. There were no periprocedural complications encountered. Conclusion The addition of contralateral MMA embolization for recurrent cSDH after previous surgery is a safe and potentially additive therapy that may increase the overall efficacy of MMA embolization in these challenging cases.
    Type of Medium: Online Resource
    ISSN: 2694-5746
    URL: Article
    DOI: 10.1161/SVIN.03.suppl_2.140
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2023
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  • 4
    Online Resource
    Online Resource
    Abstract 201: Feasibility of an 088” Catheter in the M1 segment for Mechanical Thrombectomy
    Ovid Technologies (Wolters Kluwer Health) ; 2023
    In:  Stroke: Vascular and Interventional Neurology Vol. 3, No. S2 ( 2023-11)
    Details
    In: Stroke: Vascular and Interventional Neurology, Ovid Technologies (Wolters Kluwer Health), Vol. 3, No. S2 ( 2023-11)
    Abstract: Placement of 088” aspiration catheters in the internal carotid artery (ICA) for aspiration in mechanical thrombectomy (MT) has been previously described. However, the use and safety of 088” aspiration catheters beyond the ICA has not been established. Here, we report the utilization and early safety outcomes of 088” catheter placement in the M1 segment for MT. Methods We reviewed a prospectively maintained IRB‐approved database of the senior author to identify consecutive cases where the 088” catheter was navigated to the MCA for use in mechanical thrombectomy. Results We identified 13 cases with placement of an 088” aspiration catheter in the MCA segment (all cases performed in 2023). Average patient age was 71±4 years (range 56‐97 years), with 10 (77%) females, presenting NIHSS was 12±2.1, and 3 (23%) patients received tPA. Location of the thrombus includes 7 (54%) in the M1 and 6 (46%) in the M2. In 13 (100%) cases, the Zoom88 (OD = 2.7 mm, Imperative Care, Campbell, CA) catheter was advanced to at least the M1 segment, and it was used with a coaxial Zoom71 catheter. The average M1 diameter prior to MT was 2.5±0.2mm, 2.3±0.2mm, and 2.2±0.1 in the proximal, mid, and distal M1‐segment, respectively. After MT, the average M1 diameter was 2.4±0.1mm, 2.2±0.1mm, and 2.1±0.2mm in the proximal, mid, and distal M1‐segment, respectively. 85% (n=11) of cases used one or more stentrievers including a Tigertriever, Solitaire, and Trevo. Average number of passes was 1.9±0.2. There were no vessel perforations, catheter‐related dissections, or hemorrhagic complications noted in any case. TICI 2C/3 recanalization was achieved in 100% of cases. The average mRS on discharge was 1.2±0.4. Figure 1. (A) AP angiography demonstrating an M1 branch occlusion (orange). (B) Native view, 088” catheter under aspiration in the MCA (green). (C) Post‐thrombectomy final angiography demonstrating TICI 3 reperfusion. Conclusion The use of large‐bore 088” aspiration catheters in the MCA may offer a safe strategy for direct clot ingestion during mechanical thrombectomy in MCA vasculature that is smaller than the 8‐Fr aspiration catheter.
    Type of Medium: Online Resource
    ISSN: 2694-5746
    URL: Article
    DOI: 10.1161/SVIN.03.suppl_2.201
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2023
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  • 5
    Online Resource
    Online Resource
    Abstract 137: Management of cSDH with the Use of 10:1 Glue Hyper‐Dilution in MMA Embolization: Radiographic Follow‐up
    Ovid Technologies (Wolters Kluwer Health) ; 2023
    In:  Stroke: Vascular and Interventional Neurology Vol. 3, No. S2 ( 2023-11)
    Details
    In: Stroke: Vascular and Interventional Neurology, Ovid Technologies (Wolters Kluwer Health), Vol. 3, No. S2 ( 2023-11)
    Abstract: Middle meningeal artery (MMA) embolization for the treatment of chronic subdural hematomas (cSDH) is becoming an alternative to surgical intervention. Recent literature suggests distal embolic penetration beyond visible MMA branches achieves optimal cSDH devascularization. Here, we report the mid‐term radiographic follow‐up of a hyper‐dilution glue technique for enhanced embolization of non‐visible dural vasculature. Methods A prospectively maintained IRB‐approved institutional database of the senior authors was retrospectively reviewed to identify and analyze cSDHs managed with 10:1 glue hyper‐dilution (TRUFILLTM n‐BCA liquid embolic) paradigm. Results Over a 5‐month study period (September 2022 to February 2023), 46 cases of 10:1 glue hyper‐dilution for MMA embolization were identified in 23 patients. 56% of the cases were female with an average age of 70±1.59 years. Average admission cSDH thickness was 9.3±0.8 mm with an average midline shift of 3.5±0.5 mm. Bilateral embolization was performed in 91% (n=21) of patients. Technical success was achieved in all cases without need for periprocedural rescue surgery. One postprocedural complication (2.2%), a unilateral partial facial nerve palsy (House‐Brackmann 2), was identified. All patients were discharged at their mRS baseline. Nine patients (40%) had radiographic follow‐up (mean 42±6.7 days; range 1 to 194 days). Complete resolution of the cSDH was achieved in 67% of those with follow‐up imaging (n=9) cases. In those with residual cSDH, average followup thickness was 7.2±0.8mm. Conclusion Mid‐term radiographic results of 10:1 glue hyper‐dilution for MMA embolization for enhanced non‐visible dural vasculature demonstrates a favorable safety profile compatible with the literature and encouraging resolution of cSDH. Further follow‐up and comparative studies are warranted.
    Type of Medium: Online Resource
    ISSN: 2694-5746
    URL: Article
    DOI: 10.1161/SVIN.03.suppl_2.137
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2023
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  • 6
    Online Resource
    Online Resource
    Abstract 202: Early Experience with the Aristotle Colossus 035” Micro‐Guidewire for Mechanical Thrombectomy: Experience in 6 Cases
    Ovid Technologies (Wolters Kluwer Health) ; 2023
    In:  Stroke: Vascular and Interventional Neurology Vol. 3, No. S2 ( 2023-11)
    Details
    In: Stroke: Vascular and Interventional Neurology, Ovid Technologies (Wolters Kluwer Health), Vol. 3, No. S2 ( 2023-11)
    Abstract: Recent literature continues to demonstrate the successful role large‐bore aspiration catheters have in thrombus ingestion during mechanical thrombectomy. However, the ledge gap, or step off, between the catheter and the microwire can make navigating to distal vasculature difficult. A new 035” micro‐guidewire reduces the step off for 035” aspiration catheters (Aristotle 35 Colossus Guidewire, Scientia Vascular, West Vale City, UT) while maintaining torquability and softness. We report here our early experience in 6 mechanical thrombectomy cases. Methods We reviewed and analyzed a prospectively maintained database of the senior authors to identify cases utilizing a 035” micro‐guidewire with 035” aspiration catheters in mechanical thrombectomy. Results Six consecutive cases of 035” microwire use for mechanical thrombectomy were identified. Four (67%) patients were female with an average age of 77±5.3 years (range 56‐97). Average presenting NIHSS was 11±3. Thrombus locations included 50% (n=3) in the M2, 33% (n=2) in the M1, and 17% (n=1) in the P1. Radial access was performed in 1 case (17%), with remaining via femoral access (n=5, 83%). An 088” ID aspiration catheter was navigated to at least the M1 segment in all anterior circulation cases and the basilar in the posterior circulation case. The 035” wire was placed proximal to the occlusion in all cases allowing coaxial 035” and 071” catheter aspiration passes. The average number of passes was 2±0.3. TICI 2C/3 was achieved in 83% of cases (5/6) and 2b in the remaining case. There were no catheter‐related dissections, perforations, or hemorrhagic complications noted for the cases. Figure 1. (A) AP angiography demonstrating a thrombus in the right M2 superior division (white). (B) 035” (yellow), 071” (orange), and 088” (red) aspiration catheters over the Colossus 35 micro‐guidewire (black) at the level of the thrombus without crossing it. Conclusion The Colossus 035” micro‐guidewire may offer advantages over its narrower counterparts by reducing ledge effect and the need to cross the thrombus. Further comparative studies against currently available microwires are needed in various anatomies to confirm this perceived performance advantage.
    Type of Medium: Online Resource
    ISSN: 2694-5746
    URL: Article
    DOI: 10.1161/SVIN.03.suppl_2.202
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2023
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