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Vaishnav D, Essibayi MA, Toma A, Liriano G, Perkash RS, Stock A, Holland R, Dmytriw AA, Wolfe SQ, Al Kasab S, Spiotta A, Haranhalli N, Altschul DJ. Metal allergy and neurovascular stenting: A systematic review. Interv Neuroradiol 2024:15910199231226283. [PMID: 38225179 DOI: 10.1177/15910199231226283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2024] Open
Abstract
BACKGROUND Intracranial stents and flow diverters contain significant amounts of metals, notably nickel, which can cause allergic reactions in a considerable portion of the population. These allergic responses may lead to complications like in-stent stenosis (ISS) and TIA/Stroke in patients receiving stents or flow diverters for intracranial aneurysms. METHODS We conducted a systematic review of studies from inception until July 2023, which reported outcomes of patients with metal allergy undergoing neurovascular stenting. The skin patch test was used to group patients into those with positive, negative, or absent patch test results but with a known history of metal allergy. RESULTS Our review included seven studies with a total of 39 patients. Among them, 87% had a history of metal allergy before treatment. Most aneurysms (89%) were in the anterior circulation and the rest (11%) were in the posterior circulation. Skin patch tests were performed in 59% of patients, with 24% showing positive results and 33% negative. Incidental ISS was observed in 18% of patients, and the rate of TIA/Stroke was reported in 21%. The pooled rates of ISS and TIA/Stroke were higher in the first group (43% and 38%) compared to the second (18% and 9%) and third groups (15% and 15%), but these differences were not statistically significant. CONCLUSIONS The current neurosurgical literature does not provide a conclusive association between metal allergy and increased complications among patients undergoing neurovascular stenting. Further studies are necessary to gain a more comprehensive understanding of this topic.
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Affiliation(s)
- Dhrumil Vaishnav
- Department of Neurological Surgery, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Muhammed Amir Essibayi
- Department of Neurological Surgery, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Aureliana Toma
- Department of Radiology, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Genesis Liriano
- Department of Neurological Surgery, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Raja Sandeep Perkash
- Department of Neurological Surgery, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Ariel Stock
- Department of Neurological Surgery, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Ryan Holland
- Department of Neurological Surgery, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Adam A Dmytriw
- Neuroendovascular Program, Massachusetts General Hospital & Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Neurovascular Centre, Departments of Medical Imaging & Neurosurgery, St Michael's Hospital, University of Toronto, Toronto, ON, Canada
| | - Stacey Q Wolfe
- Department of Neurosurgery, Wake Forest University School of Medicine, Winston-Salem, NC, USA
| | - Sami Al Kasab
- Department of Neurosurgery, Medical University of South Carolina, Charleston, SC, USA
| | - Alejandro Spiotta
- Department of Neurosurgery, Medical University of South Carolina, Charleston, SC, USA
| | - Neil Haranhalli
- Department of Neurological Surgery, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY, USA
| | - David J Altschul
- Department of Neurological Surgery, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY, USA
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Ortega-Gutierrez S, Rodriguez-Calienes A, Vivanco-Suarez J, Cekirge HS, Hanel RA, Dibas M, Lamin S, Rice H, Saatci I, Fiorella D, Lylyk P, Baltacioglu F, Lylyk I, Mendes Pereira V, Gounis MJ, Fiehler J. Braid stability after flow diverter treatment of intracranial aneurysms: a systematic review and meta-analysis. J Neurointerv Surg 2023:jnis-2023-021120. [PMID: 38124177 DOI: 10.1136/jnis-2023-021120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Accepted: 12/08/2023] [Indexed: 12/23/2023]
Abstract
BACKGROUND The aim of this study was to evaluate the overall rates of braid changes associated with flow diverter (FD) treatment for intracranial aneurysms (IAs). Additionally, we sought to provide an overview of the currently reported definitions related to these complications. METHODS A systematic search was conducted from the inception of relevant literature up to April 2023, encompassing six databases. The included studies focused on patients with IAs treated with FDs. We considered four main outcome measures as FD braid changes: (1) fish-mouthing, (2) device braid narrowing, (3) device braid collapsing, and (4) device braid deformation. The data from these studies were pooled using a random-effects model. RESULTS A total of 48 studies involving 3572 patients were included in the analysis. Among them, 14 studies (39%) provided definitions for fish-mouthing. However, none of the included studies offered specific definitions for device braid narrowing, collapsing, or deformation, despite reporting rates for these complications in six, five, and three studies, respectively. The pooled rates for braid changes were as follows: 3% (95% CI 2% to 4%, I2=27%) for fish-mouthing, 7% (95% CI 2% to 20%, I2=85%) for narrowing, 1% (95% CI 0% to 3%, I2=0%) for collapsing, and 1% (95% CI 1% to 4%, I2=0%) for deformation. CONCLUSION The findings of this study suggest that FD treatment for IAs generally exhibits low rates of fish-mouthing, device braid narrowing, collapsing, and deformation. However, the lack of standardized definitions hinders the ability to compare device outcomes objectively, emphasizing the need for uniform definitions for FD braid changes in future prospective studies on FD.
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Affiliation(s)
- Santiago Ortega-Gutierrez
- Departmenf of Neuroloy, Neurosurgery and Radiology, University of Iowa Hospitals and Clinics, Iowa City, Iowa, USA
| | - Aaron Rodriguez-Calienes
- Department of Neurology, University of Iowa Hospitals and Clinics, Iowa City, Iowa, USA
- Neuroscience, Clinical Effectiveness and Public Health Research Group, Universidad Cientifica del Sur, Lima, Peru
| | - Juan Vivanco-Suarez
- Department of Neurology, University of Iowa Hospitals and Clinics, Iowa City, Iowa, USA
| | - H Saruhan Cekirge
- Radiology, Private American Hospital, Ankara, Turkey
- Private Office, Saruhan Cekirge, Ankara, Turkey
| | - Ricardo A Hanel
- Department of Neurosurgery, Baptist Medical Center, San Antonio, Texas, USA
| | - Mahmoud Dibas
- Department of Neurology, University of Iowa Hospitals and Clinics, Iowa City, Iowa, USA
| | - Saleh Lamin
- Department of Interventional Neuroradiology, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
| | - Hal Rice
- Department of Interventional Neuroradiology, Gold Coast University Hospital, Southport, Queensland, Australia
| | | | - David Fiorella
- Department of Neurosurgery, Stony Brook University, Stony Brook, New York, USA
- SUNY SB, New York, New York, USA
| | - Pedro Lylyk
- Interventional Neuroradiology, Clinical Institute ENERI, Buenos Aires, Argentina
| | | | - Ivan Lylyk
- Clínica La Sagrada Familia, Buenos Aires, Argentina
| | - Vitor Mendes Pereira
- Division of Neuroradiology, Department of Medical Imaging, University Health Network - Toronto Western Hospital, Toronto, Ontario, Canada
- Division of Neurosurgery, Department of Surgery, University Health Network - Toronto Western Hospital, Toronto, Ontario, Canada
| | - Matthew J Gounis
- New England Center for Stroke Research, Department of Radiology, University of Massachusetts Chan Medical School, Worcester, Massachusetts, USA
| | - Jens Fiehler
- Department of Neuroradiology, University Medical Center Hamburg Eppendorf, Hamburg, Germany
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Torche E, Cao R, Mattar A, Laubacher M, Riva R, Eker OF. Ultra-Early "Fishmouth stenosis" and thrombosis of a Surpass Evolve flow diversion device following treatment of multiples right siphon aneurysms. Neuroradiology 2023; 65:1803-1807. [PMID: 37845483 DOI: 10.1007/s00234-023-03239-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 10/09/2023] [Indexed: 10/18/2023]
Abstract
We present a case of ultra-early symptomatic fish-mouth type stenosis (FMTS) of a Surpass Evolve flow diverter stent (SE-FDS) occurring within 24 h after deployment for the treatment of multiple unruptured right siphon aneurysms in a 44-year-old patient. The patient developed left hemiplegia and hemineglect, and was treated with mechanical thrombectomy (MT) and Tirofiban infusion. This is the first report of an ultra-early FMTS with a SE-FDS and its mechanism is discussed in the light of available data in the literature.
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Affiliation(s)
- Esteban Torche
- Department of Neuroradiology, Hôpital Pierre Wertheimer, Hospices Civils de Lyon, Bron, France.
- Department of Neurosurgery, Sanatorio Aleman, Concepción, Chile.
| | - Roberta Cao
- Department of Neuroradiology, Hôpital Pierre Wertheimer, Hospices Civils de Lyon, Bron, France
| | - Adonis Mattar
- Department of Neuroradiology, Hôpital Pierre Wertheimer, Hospices Civils de Lyon, Bron, France
| | - Morgane Laubacher
- Department of Neuroradiology, Hôpital Pierre Wertheimer, Hospices Civils de Lyon, Bron, France
| | - Roberto Riva
- Department of Neuroradiology, Hôpital Pierre Wertheimer, Hospices Civils de Lyon, Bron, France
| | - Omer F Eker
- Department of Neuroradiology, Hôpital Pierre Wertheimer, Hospices Civils de Lyon, Bron, France
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Mistretta F, Russo R, Molinaro S, Bergui M. Correspondence on "Delayed collapse of flow diverter due to acute severe vasospasm: another concern for flow diversion in ruptured aneurysms" by Kumar et al. J Neurointerv Surg 2023; 15:205. [PMID: 35918127 DOI: 10.1136/jnis-2022-019325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Accepted: 07/15/2022] [Indexed: 01/14/2023]
Affiliation(s)
- Francesco Mistretta
- Department of Surgical Sciences, Radiology Unit, University of Turin, Azienda Ospedaliera Città della Salute e della Scienza Hospital, Turin, Italy
| | - Riccardo Russo
- Department of Neuroscience, Neuroradiological Unit, University of Turin, Azienda Ospedaliera Città della Salute e della Scienza Hospital, Turin, Italy
| | - Stefano Molinaro
- Department of Neuroscience, Neuroradiological Unit, University of Turin, Azienda Ospedaliera Città della Salute e della Scienza Hospital, Turin, Italy
| | - Mauro Bergui
- Department of Neuroscience, Neuroradiological Unit, University of Turin, Azienda Ospedaliera Città della Salute e della Scienza Hospital, Turin, Italy
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Salem MM, Kvint S, Hendrix P, Al Saiegh F, Gajjar AA, Choudhri O, Jankowitz BT, Goren O, Gross BA, Jabbour P, Lang M, Schirmer CM, Tjoumakaris SI, Griessenauer CJ, Burkhardt JK. The Pennsylvania Postmarket Multicenter Experience With Flow Redirection Endoluminal Device. Neurosurgery 2022; 91:280-285. [PMID: 35394453 DOI: 10.1227/neu.0000000000001970] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 02/10/2022] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND The flow redirection endoluminal device (FRED) is a novel self-expanding double-layer nitinol braided flow diverter that recently received FDA approval. However, early postmarket studies from the United States are lacking. OBJECTIVE To report our short-term multicenter experience. METHODS Series of consecutive patients undergoing FRED treatment for intracranial aneurysms were queried from prospectively maintained registries at 4 North-American Centers in Pennsylvania (February 2020-June 2021). The pertinent baseline demographics, aneurysmal characteristics, and procedural outcomes were collected and analyzed, with primary outcome of aneurysmal occlusion and secondary outcome of safety and complications. RESULTS Sixty-one patients (median age 58 years, 82% female) underwent 65 FRED treatment procedures for 72 aneurysms. Most (86.1%) of the aneurysms were unruptured; 80.5% were saccular in morphology, and 87.5% were located along the internal carotid artery, with a median size of 7.1 mm (IQR 5.2-11.9 mm). Radiographic follow-up was available in 86.1% of the aneurysms, showing complete occlusion in 74.2% (80% in catheter angiography-only group), and near-complete occlusion in 11.3% of the cases (median 6.3 months), with 2.8% re-treated. Permanent ischemic complications were encountered in 2.8% of the cases, with no procedural mortality. A modified Rankin Scale of 0 to 2 was documented in 98.1% of the patients at the last clinical follow-up (median 6.1 months). CONCLUSION The results of the early postmarket experience with the FRED device show reasonable safety and adequate aneurysmal occlusion rates comparable with other flow diverters. However, more extensive multicenter studies with more extended follow-up data are needed to assess the long-term safety and durability of the device.
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Affiliation(s)
- Mohamed M Salem
- Department of Neurosurgery, Hospital of the University of Pennsylvania, Penn Medicine, Philadelphia, Pennsylvania, USA
| | - Svetlana Kvint
- Department of Neurosurgery, Hospital of the University of Pennsylvania, Penn Medicine, Philadelphia, Pennsylvania, USA
| | - Philipp Hendrix
- Department of Neurosurgery, Geisinger Medical Center, Danville, Pennsylvania, USA
| | - Fadi Al Saiegh
- Department of Neurosurgery, Thomas Jefferson University Hospitals, Philadelphia, Pennsylvania, USA
| | - Avi A Gajjar
- Department of Neurosurgery, Hospital of the University of Pennsylvania, Penn Medicine, Philadelphia, Pennsylvania, USA
| | - Omar Choudhri
- Department of Neurosurgery, Hospital of the University of Pennsylvania, Penn Medicine, Philadelphia, Pennsylvania, USA
| | - Brian T Jankowitz
- Department of Neurosurgery, Hospital of the University of Pennsylvania, Penn Medicine, Philadelphia, Pennsylvania, USA
| | - Oded Goren
- Department of Neurosurgery, Geisinger Medical Center, Danville, Pennsylvania, USA
| | - Bradley A Gross
- Department of Neurosurgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Pascal Jabbour
- Department of Neurosurgery, Thomas Jefferson University Hospitals, Philadelphia, Pennsylvania, USA
| | - Michael Lang
- Department of Neurosurgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Clemens M Schirmer
- Department of Neurosurgery, Geisinger Medical Center, Danville, Pennsylvania, USA
| | | | - Christoph J Griessenauer
- Department of Neurosurgery, Geisinger Medical Center, Danville, Pennsylvania, USA.,Department of Neurosurgery, Christian Doppler Clinic, Paracelsus Medical University, Salzburg, Austria
| | - Jan-Karl Burkhardt
- Department of Neurosurgery, Hospital of the University of Pennsylvania, Penn Medicine, Philadelphia, Pennsylvania, USA
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Guéroult AM, Al-Balah A, Davies AH, Shalhoub J. Nickel hypersensitivity and endovascular devices: a systematic review and meta-analysis. Heart 2021; 108:1707-1715. [PMID: 34702756 DOI: 10.1136/heartjnl-2021-319940] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Accepted: 09/23/2021] [Indexed: 02/07/2023] Open
Abstract
OBJECTIVE Nickel allergy is common; endovascular specialists are often confronted with nickel allergic patients ahead of the implantation of endovascular devices, many of which are nickel-containing. Our aim was to elucidate whether nickel hypersensitivity is significantly associated with worse or adverse outcomes after placement of a nickel-containing endovascular device. METHODS Inclusion criteria were: endovascular and transcatheter procedures for coronary, structural heart, neurovascular and peripheral vascular pathology involving nickel-allergic patients. All adverse outcomes were included as defined by included studies. A systematic review and meta-analysis were undertaken using a random-effects model. Searches of MEDLINE and EMBASE were conducted for articles published 1947-2019. RESULTS 190 records were identified, 78 articles were included for qualitative synthesis and 15 met criteria for meta-analysis. Patch-test confirmed nickel allergy was associated with an increased risk of adverse outcomes following implantation of a nickel-containing endovascular device (n=14 articles, 1740 patients; OR 2.61, 95% CI 1.41 to 4.85). This finding further was observed in coronary (n=12 articles, 1624 patients; OR 1.94, 95% CI 1.16 to 3.23) and structural heart subgroups (n=2 articles, 83 patients; OR 52.28, 95% CI 1.31 to 2079.14), but not in the neurovascular subgroup (n=1 article, 33 patients; OR 3.04, 95% CI 0.59 to 15.72) or with a patient-reported history of nickel allergy (n=2 articles, 207 patients; OR 2.14, 95% CI 0.23 to 19.70). CONCLUSIONS Patch-tested nickel allergy is associated with an increased risk of adverse outcomes following endovascular device implantation and alternative treatment options should be considered. Specialists faced with patients' self-reporting nickel allergy should consider proceeding to diagnostic patch-testing.
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Affiliation(s)
- Aurélien M Guéroult
- Academic Section of Vascular Surgery, Department of Surgery & Cancer, Imperial College Healthcare NHS Trust, London, UK .,Imperial Vascular Unit, Imperial College Healthcare NHS Trust, London, UK
| | - Amer Al-Balah
- Academic Section of Vascular Surgery, Department of Surgery & Cancer, Imperial College Healthcare NHS Trust, London, UK
| | - Alun H Davies
- Academic Section of Vascular Surgery, Department of Surgery & Cancer, Imperial College Healthcare NHS Trust, London, UK.,Imperial Vascular Unit, Imperial College Healthcare NHS Trust, London, UK
| | - Joseph Shalhoub
- Academic Section of Vascular Surgery, Department of Surgery & Cancer, Imperial College Healthcare NHS Trust, London, UK.,Imperial Vascular Unit, Imperial College Healthcare NHS Trust, London, UK
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7
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Rautio R, Alpay K, Sinisalo M, Numminen J. Treatment of intracranial aneurysms using the new Surpass Evolve flow diverter: Safety outcomes and six-month imaging follow-up. J Neuroradiol 2021; 49:80-86. [PMID: 33785389 DOI: 10.1016/j.neurad.2021.03.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2020] [Revised: 03/10/2021] [Accepted: 03/17/2021] [Indexed: 12/21/2022]
Abstract
BACKGROUND AND PURPOSE Several studies have reported good long-term results in the occlusion of intracranial aneurysms with flow diverter treatment. The aim of this study was to report the safety and six-month follow-up outcomes using the new Surpass Evolve flow diverter in the treatment of intracranial aneurysms. MATERIALS AND METHODS Consecutive patients with intracranial aneurysm treated with Surpass Evolve flow diverter in two high-volume neurovascular centers between May 2019 and January 2020 were retrospectively reviewed. Procedure-related complications, aneurysm occlusion (O'Kelly-Marotta grading scale), and clinical outcomes were assessed. RESULTS Twenty-nine patients with 30 aneurysms were included in the study. Favorable aneurysm occlusion (O'Kelly Marotta grading scale C-D) at six-month follow-up was achieved in 21/27 (78%) aneurysms. No clinical procedure related thromboembolic complications were encountered. Twenty-three out of 24 patients with unruptured aneurysms treated with Surpass Evolve remained clinically intact at clinical follow-up. There was one fatal hemorrhagic procedure-related complication (3%). In five patients with ruptured aneurysms, no early or late rebleeds occurred from the aneurysms. CONCLUSIONS Surpass Evolve FD worked technically well with no intraprocedural thromboembolic complications and occlusion rates comparable to other FDs.
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Affiliation(s)
- Riitta Rautio
- Department of Interventional Radiology, Turku University Hospital, Finland; University of Turku.
| | - Kemal Alpay
- Department of Radiology, Turku University Hospital, Finland
| | - Matias Sinisalo
- Department of Interventional Radiology, Turku University Hospital, Finland
| | - Jussi Numminen
- Department of Radiology, Helsinki University Central Hospital, Finland
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8
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Yeomans J, Sandu L, Sastry A. Pipeline Flex embolisation device with Shield Technology for the treatment of patients with intracranial aneurysms: periprocedural and 6 month outcomes. Neuroradiol J 2020; 33:471-478. [PMID: 33092461 DOI: 10.1177/1971400920966749] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
BACKGROUND AND PURPOSE The Pipeline Flex embolisation device with Shield Technology (Pipeline Shield) is a novel flow diverter which reduces intra-vessel thrombogenicity. This study summarises periprocedural outcomes and 6-month follow-up results following its introduction in a tertiary interventional neuroradiology centre. MATERIALS AND METHODS This prospective, single-arm study assessed 32 aneurysms treated over a 21-month time period from the time of procedure to 6 months post-procedure. Data collected included patient demographics, aneurysm features and intraprocedural and 6-month post-procedural complications. RESULTS The mean age of the cohort was 58.8 ± Standard Deviation 8.5 years. Twenty-eight aneurysms were treated electively and four acutely. The elective cases received dual antiplatelet therapy post-procedure. The acute cases received single antiplatelet therapy post-procedure. Of the target aneurysms, 16/32 (50%) were small (<10 mm), 13/32 (41%) were large (10-25 mm) and 3/32 (9%) were giant (≥25 mm). There was no mortality in the series. There were two periprocedural complications (2/32, 6.2%): a stroke and a dissection. There were no post-procedural complications. At 6 months post-procedure, satisfactory occlusion (defined as Raymond-Roy 1 or 2) was achieved in 90.6% and 93.8% by way of magnetic resonance angiography and digital subtraction angiography assessment, respectively. There was no implant migration, no significant intraluminal hyperplasia or in-stent stenosis and no cases of aneurysm recurrence. CONCLUSION The Pipeline Shield has an excellent 6- month safety profile with an acceptable rate of intraprocedural complications, no post-procedure complications and no mortality in this case series of 32 acute and elective cases.
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Schob S, Richter C, Scherlach C, Lindner D, Planitzer U, Hamerla G, Ziganshyna S, Werdehausen R, Struck MF, Schob B, Gaber K, Meixensberger J, Hoffmann KT, Quäschling U. Delayed Stroke after Aneurysm Treatment with Flow Diverters in Small Cerebral Vessels: A Potentially Critical Complication Caused by Subacute Vasospasm. J Clin Med 2019; 8:jcm8101649. [PMID: 31658743 PMCID: PMC6832548 DOI: 10.3390/jcm8101649] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 09/25/2019] [Accepted: 10/03/2019] [Indexed: 12/31/2022] Open
Abstract
Flow diversion (FD) is a novel endovascular technique based on the profound alteration of cerebrovascular hemodynamics, which emerged as a promising minimally invasive therapy for intracranial aneurysms. However, delayed post-procedural stroke remains an unexplained concern. A consistent follow-up-regimen has not yet been defined, but is required urgently to clarify the underlying cause of delayed ischemia. In the last two years, 223 patients were treated with six different FD devices in our center. We identified subacute, FD-induced segmental vasospasm (SV) in 36 patients as a yet unknown, delayed-type reaction potentially compromising brain perfusion to a critical level. Furthermore, 86% of all patients revealed significant SV approximately four weeks after treatment. In addition, 56% had SV with 25% stenosis, and 80% had additional neointimal hyperplasia. Only 13% exhibited SV-related high-grade stenosis. One of those suffered stroke due to prolonged SV, requiring neurocritical care and repeated intra-arterial (i.a.) biochemical angioplasty for seven days to prevent territorial infarction. Five patients suffered newly manifested, transient hemicrania accompanying a compensatorily increased ipsilateral leptomeningeal perfusion. One treated vessel obliterated permanently. Hence, FD-induced SV is a frequent vascular reaction after FD treatment, potentially causing symptomatic ischemia or even stroke, approximately one month post procedure. A specifically early follow-up-strategy must be applied to identify patients at risk for ischemia, requiring intensified monitoring and potentially anti-vasospastic treatment.
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Affiliation(s)
- Stefan Schob
- Department of Neuroradiology, University Hospital Leipzig, 04103 Leipzig, Germany.
| | - Cindy Richter
- Department of Neuroradiology, University Hospital Leipzig, 04103 Leipzig, Germany.
| | - Cordula Scherlach
- Department of Neuroradiology, University Hospital Leipzig, 04103 Leipzig, Germany.
| | - Dirk Lindner
- Department of Neurosurgery, University Hospital Leipzig, 04103 Leipzig, Germany.
| | - Uwe Planitzer
- Department of Neurosurgery, University Hospital Leipzig, 04103 Leipzig, Germany.
| | - Gordian Hamerla
- Department of Neuroradiology, University Hospital Leipzig, 04103 Leipzig, Germany.
| | - Svitlana Ziganshyna
- Department of Anaesthesiology, University Hospital Leipzig, 04103 Leipzig, Germany.
| | - Robert Werdehausen
- Department of Anaesthesiology, University Hospital Leipzig, 04103 Leipzig, Germany.
| | | | - Bernd Schob
- Department for Lightweight Structures and Polymers, Technical University Chemnitz, 09126 Chemnitz, Germany.
| | - Khaled Gaber
- Department of Neurosurgery, University Hospital Leipzig, 04103 Leipzig, Germany.
| | - Jürgen Meixensberger
- Department of Neurosurgery, University Hospital Leipzig, 04103 Leipzig, Germany.
| | - Karl-Titus Hoffmann
- Department of Neuroradiology, University Hospital Leipzig, 04103 Leipzig, Germany.
| | - Ulf Quäschling
- Department of Neuroradiology, University Hospital Leipzig, 04103 Leipzig, Germany.
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Luecking H, Doerfler A, Goelitz P, Hoelter P, Engelhorn T, Lang S. Two- to five-year follow-up of 78 patients after treatment with the Flow Redirection Endoluminal Device. Interv Neuroradiol 2019; 26:38-44. [PMID: 31594435 DOI: 10.1177/1591019919878551] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND AND PURPOSE Flow-diverter stents are well-established for the treatment of cerebral aneurysms. Flow Redirection Endoluminal Device differs from other flow-diverter stents by its dual-layer design and has proved equality to other devices in numerous short-term surveys. However, follow-up data covering substantially more than one year are still limited for this device. We present our long-term experience with Flow Redirection Endoluminal Device. MATERIALS AND METHODS Seventy-eight patients harboring distal internal carotid artery (91%) or vertebrobasilar (9%) cerebral aneurysms treated with Flow Redirection Endoluminal Device with or without adjunctive coiling met the inclusion criteria. All cases were evaluated for aneurysm occlusion (according to Modified Raymond Roy Classification, MRRC), for flow-diverter stents patency and configuration and for procedure- and device-related morbidity and mortality. RESULTS Mean follow-up interval was 36.9 ± 9.5 months (<30 months: n = 18; 31-42 months: n = 31; >42 months: n = 24). Total and subtotal aneurysm occlusion after six months was assessed in 92.0% (MRRC1 = 77.3%, MRRC2 = 14.7%, MRRC3a =2.7%, MRRC3b = 4.1%) and increased to 95.9% (MRRC1 = 90.5%, MRRC2 = 5.4%, MRRC3a = 2.7%). There was one case of aneurysm growth requiring early re-treatment. Procedure-related morbidity was observed in three cases (3.8%; one transient hemiparesis, one suspected foreign-body reaction, and one micro-wire perforation). There was no procedure- or device-related mortality. In-stent stenosis due to intimal hyperplasia was observed in two cases and fish-mouthing in three cases. CONCLUSIONS Our long-term data covering two to five years after flow diversion confirm that Flow Redirection Endoluminal Device is a safe and effective device for the treatment of cerebral aneurysms with progressive high aneurysm occlusion rates; recurrence rates were very low. Overall device-related morbidity was low and was not observed later than six months after intervention.
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Affiliation(s)
- Hannes Luecking
- Department of Neuroradiology, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Arnd Doerfler
- Department of Neuroradiology, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Philipp Goelitz
- Department of Neuroradiology, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Philip Hoelter
- Department of Neuroradiology, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Tobias Engelhorn
- Department of Neuroradiology, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Stefan Lang
- Department of Neuroradiology, University of Erlangen-Nuremberg, Erlangen, Germany
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Korkmazer B, Kocak B, Islak C, Kocer N, Kizilkilic O. Long-term results of flow diversion in the treatment of intracranial aneurysms: a retrospective data analysis of a single center. Acta Neurochir (Wien) 2019; 161:1165-1173. [PMID: 31037497 DOI: 10.1007/s00701-019-03912-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2018] [Accepted: 04/13/2019] [Indexed: 11/28/2022]
Abstract
PURPOSE Endovascular techniques are frequently used for the treatment of intracranial aneurysms and flow diverter stents are relatively new and important devices in this field. The aim of our study is to report long-term follow-up results of flow diversion treatment. METHODS We retrospectively examined angiographic images and clinical reports of 133 patients (female, 112 [84%]; mean age, 46.3 years [range, 12-70 years]) who were treated with flow diverters between 2008 and 2013 and were followed up radiologically at least 1 year. The aneurysms treated with flow diverters were assessed according to technical problems, stent patency, residual filling, re-growth, and occlusion status, and the patients were assessed according to morbidity and mortality. RESULTS Except for ten patients, one aneurysm was treated per patient. Median duration of the follow-up was 927 days. Total occlusion rates in angiographic follow-up were found 76.2% for the sixth-month, 86.7% for the first-year, 93.6% for the third-year, 94.2% for the fifth-year, and 90.2% for entire follow-up period. Nine stent morphology changes were observed in the angiographic controls. Overall mortality and morbidity rates were 3.7% and 4.3%, respectively. CONCLUSION Despite technical difficulties and delayed hemorrhages, flow diverter stents are effective tools for the treatment of challenging aneurysms in the long run. Nonetheless, long-term results of flow diversion treatment must be evaluated hemodynamically and clinically in multicenter studies.
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Affiliation(s)
- Bora Korkmazer
- Department of Radiology, Canakkale Mehmet Akif Ersoy State Hospital, Canakkale, Turkey
| | - Burak Kocak
- Department of Radiology, Istanbul Training and Research Hospital, Istanbul, Turkey
| | - Civan Islak
- Department of Radiology, Division of Neuroradiology, Istanbul University-Cerrahpasa, Cerrahpasa Medical Faculty, 34098, Istanbul, Turkey
| | - Naci Kocer
- Department of Radiology, Division of Neuroradiology, Istanbul University-Cerrahpasa, Cerrahpasa Medical Faculty, 34098, Istanbul, Turkey
| | - Osman Kizilkilic
- Department of Radiology, Division of Neuroradiology, Istanbul University-Cerrahpasa, Cerrahpasa Medical Faculty, 34098, Istanbul, Turkey.
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