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Zidan M, Voss YL, Wolf M, Keil F, Brockmann C, Gronemann C, Lehnen NC, Paech D, Nordmeyer H, Dorn F. The Dual-layer CGuard Stent Is Safe and Effective in Emergent Carotid Artery Stenting and in Tandem Occlusions: a Multi-centric Study. Clin Neuroradiol 2024:10.1007/s00062-024-01455-7. [PMID: 39225802 DOI: 10.1007/s00062-024-01455-7] [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: 05/24/2024] [Accepted: 08/11/2024] [Indexed: 09/04/2024]
Abstract
BACKGROUND Dual-layer stents have fallen into disrepute after several studies reported high rates of in-stent occlusions in acute stroke treatments. The CGuard stent is a new-generation hybrid dual-layer stent that has been designed to provide less thrombogenicity and to prevent peri- and postinterventional emboli. The aim of the study is to evaluate the safety and efficacy of the CGuard stent for the acute treatment of occlusion or high-grade stenosis of the extracranial internal carotid artery (ICA) in patients with acute ischemic stroke (AIS) with and without concomitant intracranial large vessel occlusion (LVO). METHODS All patients who underwent emergent carotid artery stenting (CAS) with the CGuard stent were identified and analyzed from the stroke registries from four tertiary German stroke centers. Clinical, procedural, and imaging data were evaluated. Stent patency within 72 h, intracranial hemorrhage, and modified Rankin score (mRS) at discharge were the safety and efficacy end points. RESULTS Overall, ninety-six patients were included (mean age 70.2 ± 11.8, 66 males (68.8%), median NIHSS score at admission 11 (7-17), IV lysis: n = 44 (45.8%)). Stent placement was successful in all patients. Eighty-three (86.4%) patients had tandem occlusions. In-stent occlusion occurred in 5 patients (5.2%) and 3 patients developed early in-stent stenosis (3.1%). Median mRS at discharge was 2 (1-4). CONCLUSION In this multicenter study, the use of the dual-layer CGuard stent for emergent CAS, particularly in tandem occlusions, was safe and resulted in low rates of in-stent occlusions.
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Affiliation(s)
- Mousa Zidan
- Department of Neuroradiology, Bonn University Hospital, Venusberg-Campus1, Gebäude 81, 53127, Bonn, Germany.
| | - Yves Leonard Voss
- Radprax MVZ Nordrhein GmbH, Department of Interventional Neuroradiology, St. Lukas-Klinik, Solingen, Germany
| | - Marcel Wolf
- Department of Neuroradiology, Mainz University Hospital, Mainz, Germany
| | - Fee Keil
- Department of Neuroradiology, Frankfurt University Hospital, Frankfurt, Germany
| | - Carolin Brockmann
- Department of Neuroradiology, Mainz University Hospital, Mainz, Germany
| | - Christian Gronemann
- Department of Neuroradiology, Bonn University Hospital, Venusberg-Campus1, Gebäude 81, 53127, Bonn, Germany
| | - Nils Christian Lehnen
- Department of Neuroradiology, Bonn University Hospital, Venusberg-Campus1, Gebäude 81, 53127, Bonn, Germany
| | - Daniel Paech
- Department of Neuroradiology, Bonn University Hospital, Venusberg-Campus1, Gebäude 81, 53127, Bonn, Germany
- Department of Radiology, German Cancer Research Centre, Heidelberg, Germany
| | - Hannes Nordmeyer
- Radprax MVZ Nordrhein GmbH, Department of Interventional Neuroradiology, St. Lukas-Klinik, Solingen, Germany
- School of Medicine, Department of Health, Witten/Herdecke University, Witten, Germany
| | - Franziska Dorn
- Department of Neuroradiology, Bonn University Hospital, Venusberg-Campus1, Gebäude 81, 53127, Bonn, Germany
- Department of Neuroradiology, Medizinische Klinik und Poliklinik IV, LMU-Klinikum, Universität München, Munich, Bayern, Germany
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Zidan M, Gronemann C, Lehnen NC, Bode F, Weller J, Petzold G, Radbruch A, Paech D, Dorn F. Stenting with dual-layer CGuard stent in acute sub-occlusive carotid artery stenosis and in tandem occlusions: a monocentric study. Neuroradiology 2024; 66:1635-1644. [PMID: 38844697 PMCID: PMC11322317 DOI: 10.1007/s00234-024-03397-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Accepted: 06/01/2024] [Indexed: 08/16/2024]
Abstract
PURPOSE Double-layer design carotid stents have been cast in a negative light since several investigations reported high rates of in-stent occlusions, at least in the acute setting of tandem occlusions. CGuard is a new generation double-layered stent that was designed to prevent periinterventional embolic events. The aim of this study was to analyze the safety and efficacy of the CGuard in emergent CAS and for the acute treatment of tandem occlusions in comparison with the single-layer Carotid Wallstent (CWS) system. METHODS All patients who underwent CAS with CGuard or CWS after intracranial mechanical thrombectomy (MT) between 11/2018 and 12/2022 were identified from our local thrombectomy registry. Clinical, interventional and neuroimaging data were analyzed. Patency of the stent was assessed within 72 h. Intracranial hemorrhage and modified Rankin score (mRS) at discharge were the main endpoints. RESULTS In total, 86 stent procedures in 86 patients were included (CWS: 44, CGuard: 42). CGuard had a lower, but not statistically significant rate (p = 0.431) of in-stent occlusions (n = 2, 4.8%) when compared to the CWS (n = 4, 9.1%). Significant in-stent stenosis was found in one case in each group. There was no statistically significant difference in functional outcome at discharge between the two groups with a median mRS for CGuard of 2 (IQR:1-5) vs. CWS 3 (IQR:2-4). CONCLUSION In our series, the rate of in-stent occlusions after emergent CAS was lower with the dual-layer CGuard when compared to the monolayer CWS. Further data are needed to evaluate the potential benefit of the design in more detail.
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Affiliation(s)
- Mousa Zidan
- Department of Neuroradiology, Bonn University Hospital, Venusberg-Campus1, Gebäude 81, 53127, Bonn, Germany.
| | - Christian Gronemann
- Department of Neuroradiology, Bonn University Hospital, Venusberg-Campus1, Gebäude 81, 53127, Bonn, Germany
| | - Nils Christian Lehnen
- Department of Neuroradiology, Bonn University Hospital, Venusberg-Campus1, Gebäude 81, 53127, Bonn, Germany
| | - Felix Bode
- Department of Neurology, Bonn University Hospital, Bonn, Germany
| | - Johannes Weller
- Department of Neurology, Bonn University Hospital, Bonn, Germany
| | - Gabor Petzold
- Department of Neurology, Bonn University Hospital, Bonn, Germany
| | - Alexander Radbruch
- Department of Neuroradiology, Bonn University Hospital, Venusberg-Campus1, Gebäude 81, 53127, Bonn, Germany
| | - Daniel Paech
- Department of Neuroradiology, Bonn University Hospital, Venusberg-Campus1, Gebäude 81, 53127, Bonn, Germany
- Department of Radiology, German Cancer Research Centre, Heidelberg, Germany
| | - Franziska Dorn
- Department of Neuroradiology, Bonn University Hospital, Venusberg-Campus1, Gebäude 81, 53127, Bonn, Germany
- Department of Neuroradiology, LMU-Klinikum der Universität München Medizinische Klinik und Poliklinik IV, Munich, Bayern, Germany
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Nayak S, Grant L, Demetriou V, Raseta M. Development of a Novel Statistical Model for Predicting Clinical Outcomes in Stroke Patients With Tandem Occlusions After Endovascular Therapy. Cureus 2024; 16:e59703. [PMID: 38841049 PMCID: PMC11150731 DOI: 10.7759/cureus.59703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/05/2024] [Indexed: 06/07/2024] Open
Abstract
BACKGROUND Tandem occlusions are intracranial large vessel occlusions (LVOs) with a concomitant ipsilateral extracranial internal carotid artery occlusion and can cause more severe stroke symptoms. AIM To develop a simple, rigorously cross-validated novel tool to predict clinical outcomes following tandem occlusion in patients with acute LVO stroke, based on data that are easily available to clinicians. To have used machine learning approaches to utilize the available information from clinical and angiographic data to make predictive models able to distinguish between mortality versus survival and good (modified Rankin Scale (mRS) ≤ 2) versus unfavorable neurological outcomes (mRs ≥ 3) Materials and methods: Retrospective data from 87 consecutive patients with anterior circulation stroke and tandem occlusions who underwent mechanical thrombectomy and stenting between December 2009 and January 2020 were analyzed. Patients were stratified into three groups based on the location of their LVO, and these groups were compared using statistical tests. Predictive models were built and cross-validated 1000 times to estimate their predictive power, measured by accuracy and area under the receiver operating curve (AUROC). RESULTS For distinguishing good outcome (mRS ≤ 2) versus poor outcome (mRS ≥ 3), the model comprised age, initial National Institute of Health Stroke Scale (NIHSS) score, Alberta Stroke Program Early CT Score (ASPECTS), NIHSS at 24 hours, NIHSS at discharge and intracranial haemorrhage and yielded an accuracy of 83% and the AUROC of 0.91. For mortality prediction, the model comprised age, initial NIHSS, intravenous thrombolysis, NIHSS at 24 hours and NIHSS at discharge and yielded an accuracy of 91% and an AUROC of 0.94. CONCLUSIONS Models developed exhibit strong predictive performance and can distinguish between both the instances of survival versus mortality and good versus poor outcome with an aim to support clinicians in deciding on optimal management for these complex patients. The developed model will help identify those at risk of poorer outcomes and the prospective better selection of patients with acute ischaemic large vessel stroke secondary to tandem occlusions.
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Affiliation(s)
- Sanjeev Nayak
- Neuroradiology, Royal Stoke University Hospital, Stoke-on-Trent, GBR
| | - Lucy Grant
- Radiology, Newcastle Teaching Hospitals, Newcastle upon Tyne, GBR
| | - Vias Demetriou
- Neuroradiology, Newcastle Teaching Hospitals, Newcastle upon Tyne, GBR
| | - Marko Raseta
- Department of Molecular Genetics, Erasmus University Medical Center, Rotterdam, NLD
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Kern AY, Kreinin Y, Charle L, Epshrein M, Korin N, Mangin PH. A macrofluidic model to investigate the intrinsic thrombogenicity of clinically used stents and develop less thrombogenic stents. Heliyon 2024; 10:e26550. [PMID: 38463800 PMCID: PMC10920166 DOI: 10.1016/j.heliyon.2024.e26550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 02/08/2024] [Accepted: 02/15/2024] [Indexed: 03/12/2024] Open
Abstract
Microfluidic blood flow models have been instrumental to study the functions of blood platelets in hemostasis and arterial thrombosis. However, they are not suited to investigate the interactions of platelets with the foreign surfaces of medical devices such as stents, mainly because of the dimensions and geometry of the microfluidic channels. Indeed, the channels of microfluidic chips are usually rectangular and rarely exceed 50 to 100 μm in height, impairing the insertion of clinically used stents. To fill this gap, we have developed an original macrofluidic flow system, which precisely reproduces the size and geometry of human vessels and therefore represents a biomimetic perfectly suited to insert a clinical stent and study its interplay with blood cells. The system is a circular closed loop incorporating a macrofluidic flow chamber made of silicone elastomer, which can mimic the exact dimensions of any human vessel, including the coronary, carotid or femoral artery. These flow chambers allow the perfect insertion of stents as they are implanted in patients. Perfusion of whole blood anticoagulated with hirudin through the device at relevant flow rates allows one to observe the specific accumulation of fluorescently labeled platelets on the stent surface using video-microscopy. Scanning electron microscopy revealed the formation of very large thrombi composed of tightly packed activated platelets on the stents.
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Affiliation(s)
- Axelle Y. Kern
- University of Strasbourg, INSERM, EFS Grand-Est, BPPS UMR_S1255, FMTS, F-67065 Strasbourg, France
| | - Yevgeniy Kreinin
- Department of Biomedical Engineering Technion, Israel Institute of Technology, Haifa, Israel
| | - Lise Charle
- University of Strasbourg, INSERM, EFS Grand-Est, BPPS UMR_S1255, FMTS, F-67065 Strasbourg, France
| | - Mark Epshrein
- Department of Biomedical Engineering Technion, Israel Institute of Technology, Haifa, Israel
| | - Netanel Korin
- Department of Biomedical Engineering Technion, Israel Institute of Technology, Haifa, Israel
| | - Pierre H. Mangin
- University of Strasbourg, INSERM, EFS Grand-Est, BPPS UMR_S1255, FMTS, F-67065 Strasbourg, France
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Denorme F, Frösen J, Jouppila A, Lindgren A, Resendiz-Nieves JC, Manninen H, De Meyer SF, Lassila R. Pretreatment with a dual antiplatelet and anticoagulant (APAC) reduces ischemia-reperfusion injury in a mouse model of temporary middle cerebral artery occlusion-implications for neurovascular procedures. Acta Neurochir (Wien) 2024; 166:137. [PMID: 38485848 PMCID: PMC10940479 DOI: 10.1007/s00701-024-06017-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 02/14/2024] [Indexed: 03/18/2024]
Abstract
BACKGROUND Several neurovascular procedures require temporary occlusion of cerebral arteries, leading to ischemia of unpredictable length, occasionally causing brain infarction. Experimental models of cerebral ischemia-reperfusion injury have established that platelet adhesion and coagulation play detrimental roles in reperfusion injury following transient cerebral ischemia. Therefore, in a model of cerebral ischemia-reperfusion injury (IRI), we investigated the therapeutic potential of a dual antiplatelet and anticoagulant (APAC) heparin proteoglycan mimetic which is able to bind to vascular injury sites. METHODS Brain ischemia was induced in mice by transient occlusion of the right middle cerebral artery for 60 min. APAC, unfractionated heparin (UFH) (both at heparin equivalent doses of 0.5 mg/kg), or vehicle was intravenously administered 10 min before or 60 min after the start of ischemia. At 24 h later, mice were scored for their neurological and motor behavior, and brain damage was quantified. RESULTS Both APAC and UFH administered before the onset of ischemia reduced brain injury. APAC and UFH pretreated mice had better neurological and motor functions (p < 0.05 and p < 0.01, respectively) and had significantly reduced cerebral infarct sizes (p < 0.01 and p < 0.001, respectively) at 24 h after transient occlusion compared with vehicle-treated mice. Importantly, no macroscopic bleeding complications were observed in either APAC- or UFH-treated animals. However, when APAC or UFH was administered 60 min after the start of ischemia, the therapeutic effect was lost, but without hemorrhaging either. CONCLUSIONS Pretreatment with APAC or UFH was safe and effective in reducing brain injury in a model of cerebral ischemia induced by transient middle cerebral artery occlusion. Further studies on the use of APAC to limit ischemic injury during temporary occlusion in neurovascular procedures are indicated.
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Affiliation(s)
- Frederik Denorme
- Laboratory for Thrombosis Research, KU Leuven Campus Kulak Kortrijk, Kortrijk, Belgium
| | - Juhana Frösen
- Hemorrhagic Brain Pathology Research Group, Dept. of Neurosurgery, Kuopio University Hospital, Kuopio, Finland
- Department of Neurosurgery, Tampere University Hospital, Tampere, Finland
| | - Annukka Jouppila
- Helsinki University Central Hospital Clinical Research Institute, Helsinki, Finland
| | - Antti Lindgren
- Department of Clinical Radiology, Kuopio University Hospital, Kuopio, Finland
- Institute of Clinical Medicine, School of Medicine, Faculty of Health Sciences, University of Eastern Finland, Kuopio, Finland
| | - Julio C Resendiz-Nieves
- Department of Neurosurgery, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Hannu Manninen
- Department of Radiology, Kuopio University Hospital, Kuopio, Finland
| | - Simon F De Meyer
- Laboratory for Thrombosis Research, KU Leuven Campus Kulak Kortrijk, Kortrijk, Belgium
| | - Riitta Lassila
- Coagulation Disorders Unit, Departments of Hematology and Cancer Center, Helsinki University Hospital, Helsinki, Finland.
- Faculty of Medicine, Research Program in Systems Oncology, University of Helsinki, Helsinki, Finland.
- Aplagon Oy, Helsinki, Finland.
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Safety and Efficacy of Carotid Artery Stenting with the CGuard Double-layer Stent in Acute Ischemic Stroke. Clin Neuroradiol 2023; 33:237-244. [PMID: 36070140 PMCID: PMC9449946 DOI: 10.1007/s00062-022-01209-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 07/30/2022] [Indexed: 11/03/2022]
Abstract
BACKGROUND Double-layer stents show promising results in preventing periinterventional and postinterventional embolic events in elective settings of carotid artery stenting (CAS). We report a single-center experience with the CGuard stent in the treatment of acute ischemic stroke (AIS) due to symptomatic internal carotid artery (ICA) stenosis or occlusion with or without intracranial occlusion. METHODS We retrospectively analyzed all patients who received a CGuard stent in the setting of AIS at our institution. Neuroimaging and clinical data were analyzed with the following primary endpoints: technical feasibility, acute and delayed stent occlusion or thrombosis, distal embolism, symptomatic intracranial hemorrhage (sICH) and functional outcome at 3 months. RESULTS In 33 patients, stenting with the CGuard was performed. Stent deployment was successful in all patients (28 with tandem occlusions, 5 with isolated ICA occlusion). Transient acute in-stent thrombus formation occurred in three patients (9%) without early stent occlusion. Delayed, asymptomatic stent occlusion was seen in 1 patient (3%) after 49 days. Asymptomatic periinterventional distal emboli occurred in 2 patients (6%), 1 patient experienced a transient ischemic attack 79 days after the procedure and 1 patient (3%) developed sICH. Favorable clinical outcome (mRS 0-2) at 3 months was achieved in 12 patients (36%) and the mortality rate was 24%. CONCLUSION The CGuard use in emergencies was technically feasible, the safety has to be confirmed by further multicentric studies.
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Langhoff R, Petrov I, Kedev S, Milosevic Z, Schmidt A, Scheinert D, Schofer J, Sievert H, Sedgewick G, Saylors E, Sachar R, Cremonesi A, Micari A. PERFORMANCE 1 study: Novel carotid stent system with integrated post-dilation balloon and embolic protection device. Catheter Cardiovasc Interv 2022; 100:1090-1099. [PMID: 36229946 PMCID: PMC10092178 DOI: 10.1002/ccd.30410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 07/13/2022] [Accepted: 09/06/2022] [Indexed: 11/11/2022]
Abstract
OBJECTIVES The PERFORMANCE I study was designed to evaluate the safety and feasibility of the Neuroguard IEP® System, a novel carotid stent system with an integrated embolic filter and post-dilatation balloon, to treat clinically significant carotid artery stenosis. BACKGROUND The risk of major adverse events during carotid artery stenting is comparable to carotid endarterectomy, however, the risk of minor stroke remains higher with stenting. METHODS In total, 67 patients undergoing carotid artery stenting were enrolled at nine centers in Europe. Follow-up assessments included neurological exams, duplex ultrasound, 12-lead electrocardiogram, and cardiac enzyme analysis. The primary endpoint was the 30-day composite rate of stroke, death, and myocardial infarctions versus a prespecified performance goal. Secondary endpoints included procedure success, device success, and target lesion revascularization. RESULTS The study population was predominantly male (74.6%) with a mean age of 69.3 ± 8.9 years and 67% of subjects met at least one criterion placing them at an elevated risk for adverse events following carotid endarterectomy. All patients were treated successfully with the study device. There were no deaths or strokes within 30 days of the index procedure. One subject (1.5%) experienced a non-ST elevation myocardial infarction at day 17. The primary endpoint was met with a 30-day major adverse events rate of 1.5% (1/67). Through 12-month follow-up, there were no strokes, neurological deaths, target lesion revascularizations, or instances of in-stent-restenosis. CONCLUSIONS Results from this study demonstrate the Neuroguard IEP system is safe and feasible with a stroke/death rate of 0% at 30 days. A large pivotal study is currently underway.
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Affiliation(s)
- Ralf Langhoff
- Department for Angiology, Brandenburg Medical School Theodor Fontane, Campus Clinic Brandenburg, Center for Internal Medicine I, Berlin, Germany.,Department of Angiology, Sankt-Gertrauden-Krankenhaus, Berlin, Germany
| | - Ivo Petrov
- Cardiology and Angiology Department at Acibadem City Clinic Cardiovascular Center, Sofia, Bulgaria
| | - Sasko Kedev
- University Clinic of Cardiology Medical Faculty University "Ss. Cyril and Methodius" Skopje, Skopje, Macedonia
| | - Zoran Milosevic
- Department of Diagnostic and Interventional Neuroradiology, University Medical Centre Ljubljana, Ljubljana, Slovenia
| | - Andrej Schmidt
- Clinic for Angiology, University Hospital Leipzig, Leipzig, Germany
| | - Dierk Scheinert
- Clinic for Angiology, University Hospital Leipzig, Leipzig, Germany
| | | | - Horst Sievert
- CardioVascular Center Frankfurt (CVC), Frankfurt, Germany
| | | | | | - Ravish Sachar
- Contego Medical, Inc, Raleigh, North Carolina, USA.,UNC-Rex Healthcare, Raleigh, North Carolina, USA
| | | | - Antonio Micari
- Department of Cardiology, University of Messina, Messina, Italy
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Sýkora J, Zeleňák K, Vorčák M, Števík M, Sýkorová M, Sivák J, Rovňák M, Zapletalová J, Mužík J, Šinák I, Kurča E, Meyer L, Fiehler J. Comparison of Restenosis Risk in Single-Layer versus Dual-Layer Carotid Stents: A Duplex Ultrasound Evaluation. Cardiovasc Intervent Radiol 2022; 45:1257-1266. [PMID: 35798859 DOI: 10.1007/s00270-022-03200-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Accepted: 06/04/2022] [Indexed: 01/22/2023]
Abstract
PURPOSE The aim of this study was to report intermediate-term results of duplex ultrasound follow-up of carotid artery stenting performed with the dual-layer stent as compared to concurrent patients treated with other commercially available single-layer carotid stents. MATERIALS AND METHODS A single centre, retrospective, nonrandomized study including 162 non-consecutive patients with 199 implanted carotid stents treated over a 7-year period was conducted. Patients with at least one ultrasound examination after treatment were included. Procedural and follow-up data for patients treated with the dual-layer stent implantation (83 stents) vs first-generation carotid stents implantations (116 stents) were compared. RESULTS The median follow-up time was 24.0 months (IQR 10-32 months) for dual-layer stents and 27.5 months (IQR 10.3-59 months) for single-layer stents. The rate of severe restenosis was significantly higher in the dual-layer stent group than in the single-layer group (13.3% [11/83] vs 3.4% [4/116], p = 0.01). Seven reinterventions were performed in 5 patients with dual-layer stents. The rate of reintervention was significantly higher compared to no reinterventions in single-layer stents (6% [5/83] vs 0% [0/116], p = 0.012). Patients with restenosis had significantly higher presence of dyslipidaemia (100% [12/12] vs 63.3% [95/150], p = 0.009). CONCLUSIONS In this real-world cohort of patients undergoing carotid artery stenting, the patients treated with low-profile dual-layer micromesh stent showed higher rates of restenosis and reinterventions compared to first-generation single-layer stents.
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Affiliation(s)
- Ján Sýkora
- Clinic of Radiology, Comenius University's Jessenius Faculty of Medicine and University Hospital, Kollárova 2, 036 59, Martin, Slovakia.,Department of Radiology, Faculty of Medicine and Dentistry, Palacky University Olomouc, I. P. Pavlova 185/6, 77520, Olomouc, Czech Republic
| | - Kamil Zeleňák
- Clinic of Radiology, Comenius University's Jessenius Faculty of Medicine and University Hospital, Kollárova 2, 036 59, Martin, Slovakia.
| | - Martin Vorčák
- Clinic of Radiology, Comenius University's Jessenius Faculty of Medicine and University Hospital, Kollárova 2, 036 59, Martin, Slovakia
| | - Martin Števík
- Clinic of Radiology, Comenius University's Jessenius Faculty of Medicine and University Hospital, Kollárova 2, 036 59, Martin, Slovakia
| | - Martina Sýkorová
- Vaša Ambulancia, s. r. o., Prieložtek 1, 036 01, Martin, Slovakia
| | - Jozef Sivák
- Department of Radiology, Faculty of Medicine and Dentistry, Palacky University Olomouc, I. P. Pavlova 185/6, 77520, Olomouc, Czech Republic.,Middle-Slovak Institute of Cardiovascular Diseases, Cesta k nemocnici 1, 974 01, Banská Bystrica, Slovakia
| | - Marek Rovňák
- Orthopedic Clinic, Comenius University's Jessenius Faculty of Medicine and University Hospital, Kollárova 2, 036 59, Martin, Slovakia
| | - Jana Zapletalová
- Department of Medical Biophysics, Faculty of Medicine and Dentistry, Palacký University Olomouc, Hněvotínská 976/3, 775 15, Olomouc, Czech Republic
| | - Juraj Mužík
- Department of Geotechnics, Faculty of Civil Engineering, University of Žilina, Univerzitná, 8215/1, 010 26, Žilina, Slovakia
| | - Igor Šinák
- Department of Vascular Surgery, University Hospital, Kollárova 2, 036 59, Martin, Slovakia
| | - Egon Kurča
- Clinic of Neurology, University Hospital, Kollárova 2, 036 59, Martin, Slovakia
| | - Lukas Meyer
- Diagnostic and Interventional Neuroradiology, University Medical Center Hamburg-Eppendorf, 20251, Hamburg, Germany
| | - Jens Fiehler
- Diagnostic and Interventional Neuroradiology, University Medical Center Hamburg-Eppendorf, 20251, Hamburg, Germany
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Elder TA, Verhey LH, Schultz H, Smith ES, Adel JG. Cervical carotid occlusion in acute ischemic stroke: Should we give tPA? Surg Neurol Int 2022; 13:177. [PMID: 35509556 PMCID: PMC9063023 DOI: 10.25259/sni_176_2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 04/12/2022] [Indexed: 12/03/2022] Open
Abstract
Background: Acute ischemic stroke (AIS) due to cervical internal carotid artery (cICA) occlusion is challenging to treat, with the lower revascularization rates, higher risk for complications, and poor response to thrombolytic therapy compared to isolated intracranial occlusions. While emergent revascularization through mechanical thrombectomy (MT) improves outcomes, the impact of tissue plasminogen activator (tPA) on outcomes in this subgroup of patients remains unclear. The objective of this study is to report our preliminary experience in treating AIS with cICA occlusions secondary to severe atherosclerotic stenosis and to establish the need for further clinical studies to determine the optimal intervention strategy for these lesions. Methods: Data were collected on patients who presented with acute cICA occlusion who underwent MT and either acute or staged carotid angioplasty and stenting. We compare patients who received tPA to those who did not, analyzing revascularization times, outcomes, and complications between the two populations, and discuss how this influenced our preferred treatment approach. Results: Twenty-one patients met inclusion criteria, seven of who received tPA and 14 did not receive tPA before surgical intervention. Procedural and functional outcomes were similar between the two populations. TPA administration correlated with a higher rate of vessel reocclusion in staged procedures and trended toward higher rates of symptomatic ICH and 90-day mortality. Conclusion: Emergent revascularization with acute cICA stenting carries advantages, but its safety is precluded by tPA administration. We suggest a trial which randomizes patients with cICA occlusions to receiving either tPA or dual antiplatelet therapy before surgical intervention, aiming to ultimately improved outcomes in these patients.
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Affiliation(s)
- Theresa A. Elder
- Department of Neurological Surgery, University Hospitals Cleveland Medical Center, Cleveland, Ohio,
| | - Leonard H. Verhey
- Department of Clinical Neurosciences, Spectrum Health, Michigan State University College of Human Medicine, Grand Rapids,
| | - Haritha Schultz
- Department of Internal Medicine, Central Michigan University College of Medicine,
| | - Eleanor S. Smith
- Department of Neurosurgery, Central Michigan University College of Medicine,
| | - Joseph G. Adel
- Department of Neuroscience, Ascension St Mary’s Hospital, Saginaw, Michigan, United States
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Ter Schiphorst A, Peres R, Dargazanli C, Blanc R, Gory B, Richard S, Marnat G, Sibon I, Guillon B, Bourcier R, Denier C, Spelle L, Labreuche J, Consoli A, Lapergue B, Costalat V, Obadia M, Arquizan C. Endovascular treatment of ischemic stroke due to isolated internal carotid artery occlusion: ETIS registry data analysis. J Neurol 2022; 269:4383-4395. [PMID: 35357557 DOI: 10.1007/s00415-022-11078-y] [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: 12/20/2021] [Revised: 03/09/2022] [Accepted: 03/09/2022] [Indexed: 11/25/2022]
Abstract
BACKGROUND The best treatment for acute ischemic stroke (AIS) due to isolated cervical internal carotid artery occlusion (CICAO) (i.e., without associated occlusion of the circle of Willis) is still unknown. In this study, we aimed to describe EVT safety and clinical outcome in patients with CICAO. METHODS We analyzed data of all consecutive patients, included in the Endovascular Treatment in Ischemic Stroke (ETIS) Registry between 2013 and 2020, who presented AIS and proven CICAO on angiogram and underwent EVT. We assessed carotid recanalization, procedural complications, National Institutes of Health Stroke Scale (NIHSS) at 24 h post-EVT, and 3-month favorable outcome (modified Rankin Scale, mRS ≤ 2 or equal to the pre-stroke value). RESULTS Forty-five patients were included (median age: 70 years; range: 62-82 years). The median NIHSS before EVT was 14 (9-21). Carotid stenting was performed in 23 (51%) patients. Carotid recanalization at procedure end and on control imaging was observed in 37 (82%) and 29 (70%) patients, respectively. At day 1 post-EVT, the NIHSS remained stable or decreased in 25 (60%) patients; 12 (29%) patients had early neurologic deterioration (NIHSS ≥ 4 points). The rate of procedural complications was 36%, including stent thrombosis (n = 7), intracranial embolism (n = 7), and symptomatic intracranial hemorrhage (n = 1). At 3 months, 18 (40%) patients had a favorable outcome, and 10 (22%) were dead. CONCLUSION Our study suggests that EVT in AIS patients with moderate/severe initial deficit due to CICAO led to high rate of recanalization at day 1, and a 40% rate of favorable outcome at 3 months. There was a high rate of procedural complication which is of concern. Randomized controlled trials assessing the superiority of EVT in patients with CICAO and severe deficits are needed.
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Affiliation(s)
- Adrien Ter Schiphorst
- Department of Neurology, CHRU Gui de Chauliac, University Hospital of Montpellier, 80 Avenue Augustin Fliche, 34295, Montpellier, France
| | - Roxane Peres
- Department of Neurology, Fondation Rothschild Hospital, Paris, France
| | - Cyril Dargazanli
- Department of Interventional Neuroradiology, CHRU Gui de Chauliac, University Hospital of Montpellier, Montpellier, France
| | - Raphaël Blanc
- Department of Interventional Neuroradiology, Fondation Rothschild Hospital, Paris, France
| | - Benjamin Gory
- Department of Diagnostic and Therapeutic Neuroradiology, INSERM U1254, Université de Lorraine, CHRU-Nancy, 54000, Nancy, France
| | - Sébastien Richard
- Department of Neurology, Stroke Unit, INSERM U1116, 54000, Nancy, France
| | - Gaultier Marnat
- Department of Diagnostic and Interventional Neuroradiology, University Hospital of Bordeaux, Bordeaux, France
| | - Igor Sibon
- Department of Neurology, Stroke Center, University Hospital of Bordeaux, Bordeaux, France
| | - Benoit Guillon
- Department of Neurology, University Hospital of Nantes, Nantes, France
| | - Romain Bourcier
- Department of Neuroradiology, University Hospital of Nantes, Nantes, France
| | - Christian Denier
- Department of Neurology, CHU Bicêtre, Le Kremlin Bicêtre, France
| | - Laurent Spelle
- Department of Interventional Neuroradiology, CHU Bicêtre, Le Kremlin Bicêtre, France
| | - Julien Labreuche
- ULR 2694-METRICS: Évaluation des Technologies de Santé et des Pratiques Médicales, Université de Lille, CHU Lille, 59000, Lille, France
| | - Arturo Consoli
- Department of Neuroradiology, Foch Hospital, Suresnes, France
| | | | - Vincent Costalat
- Department of Interventional Neuroradiology, CHRU Gui de Chauliac, University Hospital of Montpellier, Montpellier, France
| | - Michael Obadia
- Department of Neurology, Fondation Rothschild Hospital, Paris, France
| | - Caroline Arquizan
- Department of Neurology, CHRU Gui de Chauliac, University Hospital of Montpellier, 80 Avenue Augustin Fliche, 34295, Montpellier, France.
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11
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Zevallos CB, Farooqui M, Quispe-Orozco D, Mendez-Ruiz A, Dajles A, Garg A, Galecio-Castillo M, Patterson M, Zaidat O, Ortega-Gutierrez S. Acute Carotid Artery Stenting Versus Balloon Angioplasty for Tandem Occlusions: A Systematic Review and Meta-Analysis. J Am Heart Assoc 2022; 11:e022335. [PMID: 35023353 PMCID: PMC9238531 DOI: 10.1161/jaha.121.022335] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background Despite thrombectomy having become the standard of care for large-vessel occlusion strokes, acute endovascular management in tandem occlusions, especially of the cervical internal carotid artery lesion, remains uncertain. We aimed to compare efficacy and safety of acute carotid artery stenting to balloon angioplasty alone on treating the cervical lesion in tandem occlusions. Similarly, we aimed to explore those outcomes' associations with technique approaches and use of thrombolysis. Methods and Results We performed a systematic review and meta-analysis to compare functional outcomes (modified Rankin Scale), reperfusion, and symptomatic intracranial hemorrhage and 3-month mortality. We explored the association of first approach (anterograde/retrograde) and use of thrombolysis with those outcomes as well. Two independent reviewers performed the screening, data extraction, and quality assessment. A random-effects model was used for analysis. Thirty-four studies were included in our systematic review and 9 in the meta-analysis. Acute carotid artery stenting was associated with higher odds of modified Rankin Scale score ≤2 (odds ratio [OR], 1.95 [95% CI, 1.24-3.05]) and successful reperfusion (OR, 1.89 [95% CI, 1.26-2.83]), with no differences in mortality or symptomatic intracranial hemorrhage rates. Moreover, a retrograde approach was significantly associated with modified Rankin Scale score ≤2 (OR, 1.72 [95% CI, 1.05-2.83]), and no differences were found on thrombolysis status. Conclusions Carotid artery stenting and a retrograde approach had higher odds of successful reperfusion and good functional outcomes at 3 months than balloon angioplasty and an anterograde approach, respectively, in patients with tandem occlusions. A randomized controlled trial comparing these techniques with structured antithrombotic regimens and safety outcomes will offer definitive guidance in the optimal management of this complex disease.
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Affiliation(s)
- Cynthia B Zevallos
- Department of Neurology University of Iowa Hospitals and Clinics Iowa City IA
| | - Mudassir Farooqui
- Department of Neurology University of Iowa Hospitals and Clinics Iowa City IA
| | - Darko Quispe-Orozco
- Department of Neurology University of Iowa Hospitals and Clinics Iowa City IA
| | - Alan Mendez-Ruiz
- Department of Neurology University of Iowa Hospitals and Clinics Iowa City IA
| | - Andres Dajles
- Department of Neurology University of Iowa Hospitals and Clinics Iowa City IA
| | - Aayushi Garg
- Department of Neurology University of Iowa Hospitals and Clinics Iowa City IA
| | | | - Mary Patterson
- Department of Neurology Mercy HealthSt. Vincent Hospital Toledo OH
| | - Osama Zaidat
- Department of Neurology Mercy HealthSt. Vincent Hospital Toledo OH
| | - Santiago Ortega-Gutierrez
- Department of Neurology University of Iowa Hospitals and Clinics Iowa City IA.,Department of Neurosurgery University of Iowa Hospitals and Clinics Iowa City IA.,Department of Radiology University of Iowa Hospitals and Clinics Iowa City IA
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12
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Carvalho P, Coelho A, Mansilha A. Effectiveness and safety of dual-layer stents in carotid artery disease: a systematic review. INT ANGIOL 2020; 40:97-104. [PMID: 33337115 DOI: 10.23736/s0392-9590.20.04553-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
INTRODUCTION Carotid artery stenting (CAS) has emerged as a minimally invasive alternative to carotid endarterectomy (CEA) in atherosclerotic carotid artery disease, even though the risk for procedural stroke after CAS remains significantly higher. Recently, in order to reduce embolic cerebral events after CAS, a new generation of dual-layer stents (DLS) has been developed. This review aimed to perform a detailed analysis of the available evidence on safety and efficacy of DLS in both symptomatic and asymptomatic atherosclerotic carotid artery stenosis. EVIDENCE ACQUISITION A systematic review was conducted according to the recommendations of the Preferred Reporting Items for Systematic Reviews and Meta-Analyses statement. The primary endpoint was the 30-day rate of myocardial infarction (MI), stroke and death. Secondary outcomes included rate and timing of stent occlusion/restenosis. EVIDENCE SYNTHESIS A total of 20 articles with 1193 patients were included. Thirty-day MI ranged from 0-5%, 30-day stroke ranged from 0-10.5% and 30-day mortality ranged from 0-10%. Stent occlusion rate ranged from 0-52.4%, the majority of which occurred intraprocedurally (N.=50; 61.7%), in emergency treated patients. The incidence of new ipsilateral cerebral ischemic lesions after CAS with DLS was reported in five studies, ranging from 5.5-37%. CONCLUSIONS Despite the theoretic advantage of reducing the risk for procedural embolic events when compared to conventional stents, high quality evidence is scarce. Also, safety issues regarding DLS in the emergency setting have been raised, particularly for thrombotic complications. Additional data from well-designed Randomized Controlled Trials are needed to assert the true value of DLS.
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Affiliation(s)
| | - Andreia Coelho
- Faculty of Medicine, University of Porto, Porto, Portugal.,Department of Angiology and Vascular Surgery, Hospital Center of Vila Nova de Gaia/Espinho, Vila Nova de Gaia, Portugal
| | - Armando Mansilha
- Faculty of Medicine, University of Porto, Porto, Portugal.,Department of Angiology and Vascular Surgery, University Hospital Center of São João, Porto, Portugal
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13
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Zevallos CB, Farooqui M, Quispe-Orozco D, Mendez-Ruiz A, Patterson M, Below K, Martins SO, Mansour OY, Mont'Alverne F, Nguyen TN, Lemme L, Siddiqui AH, Fraser JF, Jadhav AP, Zaidat OO, Ortega-Gutierrez S. Proximal Internal Carotid artery Acute Stroke Secondary to tandem Occlusions (PICASSO) international survey. J Neurointerv Surg 2020; 13:1106-1110. [PMID: 33323501 DOI: 10.1136/neurintsurg-2020-017025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 11/19/2020] [Accepted: 11/24/2020] [Indexed: 11/04/2022]
Abstract
BACKGROUND While mechanical thrombectomy (MT) is the standard of care for large vessel occlusion strokes, the optimal management of tandem occlusions (TO) remains uncertain. We aimed to determine the current practice patterns among stroke physicians involved in the treatment of TO during MT. METHODS We distributed an online survey to neurovascular practitioners (stroke neurologists, neurointerventionalists, neurosurgeons, and radiologists), members of professional societies. After 2 months the site was closed and data were extracted and analyzed. We divided respondents into acute stenting and delayed treatment groups and responses were compared between the two groups. RESULTS We received 220 responses from North America (48%), Latin America (28%), Asia (15%), Europe (5%), and Africa (4%). Preferred timing for cervical revascularization varied among respondents; 51% preferred treatment in a subsequent procedure during the same hospitalization whereas 39% preferred to treat during MT. Angioplasty and stenting (41%) was the preferred technique, followed by balloon angioplasty and local aspiration (38%). The risk of intracerebral hemorrhage was the most compelling reason for not stenting acutely (68%). There were no significant differences among practice characteristics and timing groups. Most practitioners (70%) agreed that there is equipoise regarding the optimal endovascular treatment of cervical lesions in TO; hence, 77% would participate in a randomized controlled trial. CONCLUSIONS The PICASSO survey demonstrates multiple areas of uncertainty regarding the medical and endovascular management of TOs. Experts acknowledged the need for further evidence and their willingness to participate in a randomized controlled trial to evaluate the best treatment for the cervical TO lesion.
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Affiliation(s)
- Cynthia B Zevallos
- Neurology, University of Iowa Hospitals and Clinics, Iowa City, Iowa, USA
| | - Mudassir Farooqui
- Neurology, University of Iowa Hospitals and Clinics, Iowa City, Iowa, USA
| | | | - Alan Mendez-Ruiz
- Neurology, University of Iowa Hospitals and Clinics, Iowa City, Iowa, USA
| | - Mary Patterson
- Neurology, Mercy Health St Vincent Hospital, Toledo, Ohio, USA
| | - Kristine Below
- Neurology, Mercy Health St Vincent Hospital, Toledo, Ohio, USA
| | - Sheila O Martins
- Neurology, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Ossama Y Mansour
- Neurology, Stroke and NeuroInterventional Unit, Alexandria University Faculty of Medicine, Alexandria, Egypt
| | | | - Thanh N Nguyen
- Neurology, Boston University School of Medicine, Boston, Massachusetts, USA
| | - Luis Lemme
- Interventional Neuroradiology, Centro Endovascular Neurologico Buenos Aires, Buenos Aires, Argentina
| | - Adnan H Siddiqui
- Neurosurgery and Radiology and Canon Stroke and Vascular Research Center, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, New York, USA.,Neurosurgery, Gates Vascular Institute at Kaleida Health, Buffalo, New York, USA
| | - Justin F Fraser
- Neurological Surgery, University of Kentucky, Lexington, Kentucky, USA
| | | | - Osama O Zaidat
- Neuroscience, St Vincent Mercy Hospital, Toledo, Indiana, USA
| | - Santiago Ortega-Gutierrez
- Division of Neurointerventional Surgery-Interventional Neuroradiology, University of Iowa Hospitals and Clinics, Iowa City, Iowa, USA
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14
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15
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Poppe AY, Jacquin G, Roy D, Stapf C, Derex L. Tandem Carotid Lesions in Acute Ischemic Stroke: Mechanisms, Therapeutic Challenges, and Future Directions. AJNR Am J Neuroradiol 2020; 41:1142-1148. [PMID: 32499251 DOI: 10.3174/ajnr.a6582] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Accepted: 03/17/2020] [Indexed: 11/07/2022]
Abstract
Approximately 15% of patients undergoing endovascular thrombectomy for anterior circulation acute ischemic stroke have a tandem lesion, defined as a severe stenosis or occlusion of the cervical internal carotid artery ipsilateral to its intracranial occlusion. Patients with tandem lesions have worse outcomes than patients with isolated intracranial occlusions, but the optimal management of their carotid lesions during endovascular thrombectomy remains controversial. The main options commonly used in current practice include acute stent placement in the carotid lesion versus thrombectomy alone without definitive revascularization of the carotid artery. While treatment decisions for these patients are often complex and strategies vary according to clinical, anatomic, and technical considerations, only results from randomized trials comparing these approaches are likely to strengthen current recommendations and optimize patient care.
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Affiliation(s)
- A Y Poppe
- From the Departments of Medicine (Neurology) (A.Y.P., G.J., C.S.) .,Neurovascular Group (A.Y.P., G.J., C.S.), Axe Neurosciences, Centre de Recherche du Centre Hospitalier de l'Université de Montréal, Montréal, Québec, Canada
| | - G Jacquin
- From the Departments of Medicine (Neurology) (A.Y.P., G.J., C.S.).,Neurovascular Group (A.Y.P., G.J., C.S.), Axe Neurosciences, Centre de Recherche du Centre Hospitalier de l'Université de Montréal, Montréal, Québec, Canada
| | - D Roy
- Radiology (Neuroradiology) (D.R.), Centre Hospitalier de l'Université de Montréal, Montréal, Québec, Canada
| | - C Stapf
- From the Departments of Medicine (Neurology) (A.Y.P., G.J., C.S.).,Neurovascular Group (A.Y.P., G.J., C.S.), Axe Neurosciences, Centre de Recherche du Centre Hospitalier de l'Université de Montréal, Montréal, Québec, Canada
| | - L Derex
- Stroke Center (L.D.), Department of Neurology, Neurological Hospital, Hospices Civils de Lyon, Lyon, France.,EA 7425 HESPER (L.D.), Health Services and Performance Research, Claude Bernard Lyon 1 University, Lyon, France
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16
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Styczen H, Maegerlein C, Yeo LL, Clajus C, Kastrup A, Abdullayev N, Behme D, Maurer CJ, Meyer L, Goertz L, Ikenberg B, Tan BYQ, Lobsien D, Papanagiotou P, Kabbasch C, Hesse AC, Berlis A, Fiehler J, Fischer S, Forsting M, Maus V. Repeated mechanical thrombectomy in short-term large vessel occlusion recurrence: multicenter study and systematic review of the literature. J Neurointerv Surg 2020; 12:1186-1193. [PMID: 32376657 DOI: 10.1136/neurintsurg-2020-015938] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 03/20/2020] [Accepted: 03/24/2020] [Indexed: 11/03/2022]
Abstract
BACKGROUND Data on the frequency and outcome of repeated mechanical thrombectomy (MT) in patients with short-term re-occlusion of intracranial vessels is limited. Addressing this subject, we report our multicenter experience with a systematic review of the literature. METHODS A retrospective analysis was conducted of consecutive acute stroke patients treated with MT repeatedly within 30 days at 10 tertiary care centers between January 2007 and January 2020. Baseline demographics, etiology of stroke, angiographic outcome and clinical outcome evaluated by the modified Rankin Scale (mRS) at 90 days were noted. Additionally, a systematic review of reports with repeated MT due to large vessel occlusion (LVO) recurrence was performed. RESULTS We identified 30 out of 7844 (0.4%) patients who received two thrombectomy procedures within 30 days due to recurrent LVO. Through systematic review, three publications of 28 participants met the criteria for inclusion. Combined, a total of 58 participants were analyzed: cardioembolic events were the most common etiology for the first (65.5%) and second LVO (60.3%), respectively. Median baseline NIHSS (National Institutes of Health Stroke Scale) was 13 (IQR 8-16) before the first MT and 15 (IQR 11-19) before the second MT (p=0.031). Successful reperfusion was achieved in 91.4% after the first MT and in 86.2% patients after the second MT (p=0.377). The rate of functional independence (mRS 0-2) was 46% at 90 days after the second procedure. CONCLUSION Repeated MT in short-term recurrent LVO is a rarity but appears to be safe and effective. The second thrombectomy should be pursued with the same extensive effort as the first procedure as these patients may achieve similar good outcomes.
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Affiliation(s)
- Hanna Styczen
- Institute for Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Essen, Essen, Germany
| | - Christian Maegerlein
- Department of Diagnostic and Interventional Neuroradiology, Klinikum rechts der Isar, Technische Universität, Munich, Germany
| | - Leonard Ll Yeo
- Division of Neurology, National University Health System, Singapore
| | - Christin Clajus
- Department of Diagnostic and Interventional Radiology and Neuroradiology, Helios General Hospital Erfurt, Erfurt, Germany
| | | | - Nuran Abdullayev
- Department of Diagnostic and Interventional Radiology, University Hospital Cologne, Cologne, Germany
| | - Daniel Behme
- Institute for Diagnostic and Interventional Neuroradiology, Georg-August-University of Göttingen, University Medical Center Göttingen, Göttingen, Germany
| | - Christoph Johannes Maurer
- Department of Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Augsburg, Augsburg, Bayern, Germany
| | - Lukas Meyer
- Department of Diagnostic and Interventional Neuroradiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Lukas Goertz
- Center for Neurosurgery, University Hospital of Cologne, Cologne, Germany
| | - Benno Ikenberg
- Department of Neurology, Klinikum rechts der Isar, Munich, Germany
| | - Benjamin Y Q Tan
- Division of Neurology, National University Health System, Singapore
| | - Donald Lobsien
- Department of Diagnostic and Interventional Radiology and Neuroradiology, Helios General Hospital Erfurt, Erfurt, Germany
| | | | - Christoph Kabbasch
- Department of Diagnostic and Interventional Radiology, University Hospital Cologne, Cologne, Germany
| | - Amelie Carolina Hesse
- Institute for Diagnostic and Interventional Neuroradiology, Georg-August-University of Göttingen, University Medical Center Göttingen, Göttingen, Germany
| | - Ansgar Berlis
- Department of Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Augsburg, Augsburg, Bayern, Germany
| | - Jens Fiehler
- Department of Diagnostic and Interventional Neuroradiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Sebastian Fischer
- Department of Radiology, Neuroradiology and Nuclear Medicine, University Medical Center Langendreer, Bochum, Germany
| | - Michael Forsting
- Institute for Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Essen, Essen, Germany
| | - Volker Maus
- Department of Radiology, Neuroradiology and Nuclear Medicine, University Medical Center Langendreer, Bochum, Germany
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17
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Ozpeynirci Y, Capatana C, Rosskopf J, Schmitz BL, Hamann GF, Braun M. Emergency carotid artery revascularization using Casper-RX stent: A single-center experience. Interv Neuroradiol 2020; 26:433-438. [PMID: 32046548 DOI: 10.1177/1591019919900879] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Casper-RX (MicroVention, Aliso Viejo, California, USA) is a dual-layer closed cell stent recently introduced as a carotid artery revascularization device. Although its effectiveness and safety has been proved in elective cases, there are contradictive results regarding its patency in emergency settings. The purpose of the study is to present our single-center experience with the Casper-RX stent in the emergency interventions. PATIENTS AND METHODS Consecutive patients who underwent emergency carotid artery stenting using Casper-RX system with or without additional intracranial thrombectomy between August 2016 and June 2019 at our institution were included. Primary end point was the short-term patency of the carotid stents evaluated before hospital discharge by use of Doppler ultrasonography. RESULTS Twenty-nine procedures performed on 28 patients were included in the study. All stents were patent on final angiograms. Acute stent occlusion was observed only in one case (3.4%) with a spontaneous cervical internal carotid artery dissection the day after the procedure. In 26 (89.6%) cases, an additional intracranial thrombectomy was performed with a successful recanalization rate of 96.1%. Seven adverse events occurred peri-/post-procedural: two cases (6.9%) with iatrogenic dissection of distal cervical internal carotid artery during intracranial thrombectomy, two parenchymal hematoma type 2 (6.8%), and three patients (10.3%) developed massive infarction. CONCLUSION This study supports the safety and efficacy of the Casper-RX stent in emergency endovascular carotid artery revascularization procedures.
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Affiliation(s)
- Yigit Ozpeynirci
- Department of Neuroradiology, Ludwig Maximilian University, Munich, Germany
| | - Cristian Capatana
- Department of Neuroradiology, Bezirkskrankenhaus Gunzburg, Gunzburg, Germany
| | | | - Bernd L Schmitz
- Department of Neuroradiology, Bezirkskrankenhaus Gunzburg, Gunzburg, Germany.,Department of Neuroradiology, Ulm University, Ulm, Germany
| | - Gerhard F Hamann
- Clinic for Neurology and Neurologic Rehabilitation, Bezirkskrankenhaus Gunzburg, Gunzburg, Germany
| | - Michael Braun
- Department of Neuroradiology, Bezirkskrankenhaus Gunzburg, Gunzburg, Germany
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