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Camps-Renom P, McCabe J, Martí-Fàbregas J, Giannotti N, Fernández-León A, McNulty JP, Baron JC, Barry M, Coutts SB, Cronin S, Delgado-Mederos R, Dolan E, Foley S, Guasch-Jiménez M, Guisado-Alonso D, Harbison JA, Horgan G, Kavanagh EC, Marnane M, Martinez-Domeño A, McDonnell C, Sharma VK, Williams D, Connell MO, Murphy S, Prats-Sanchez L, Kelly PJ. Association of Plaque Inflammation With Stroke Recurrence in Patients With Unproven Benefit From Carotid Revascularization. Neurology 2022; 99:e109-e118. [PMID: 35418461 DOI: 10.1212/wnl.0000000000200525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 03/01/2022] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND AND OBJECTIVES In pooled analyses of endarterectomy trials for symptomatic carotid stenosis, several subgroups experienced no net benefit from revascularization. The validated SCAIL score includes stenosis severity and inflammation measured by Positron-Emission Tomography (PET) and improves the identification of patients with recurrent stroke compared with lumen-stenosis alone. We investigated if the SCAIL score improves the identification of recurrent stroke in subgroups with uncertain benefit from revascularization in endarterectomy trials. METHODS We did an individual-participant data pooled analysis of three prospective cohort studies (DUCASS, 2008-2011; BIOVASC, 2014-2018; Barcelona Plaque Study, 2015-2018). Eligible patients had a recent non-severe (modified Rankin Score≤3) anterior circulation ischaemic stroke/TIA and either: ipsilateral mild carotid stenosis (<50%); ipsilateral moderate carotid stenosis (50-69%) plus at least one of female sex, age <65 years, diabetes mellitus, TIA, or delay >14 days to revascularization; or monocular loss of vision. Patients underwent co-registered carotid 18F-FDG PET/CT angiography (≤7 days from inclusion). The primary outcome was 90-day ipsilateral ischaemic stroke. Multivariable Cox regression modelling was performed. RESULTS We included 135 patients. All patients started optimal modern-era medical treatment at admission and 62 (45.9%) underwent carotid revascularization (36 within the first 14 days and 26 beyond). At 90 days, 18 (13.3%) patients had experienced at least one stroke recurrence. The risk of recurrence increased progressively according to the SCAIL score (0.0% in patients scoring 0-1, 15.1% scoring 2-3 and 26.7% scoring 4-5; p=0.04). The adjusted (age, smoking, hypertension, diabetes mellitus, carotid revascularization, antiplatelets and statins) Hazard Ratio for ipsilateral recurrent stroke per 1-point SCAIL increase was 2.16 (95% CI 1.32-3.53; p=0.002). A score ≥2 had a sensitivity of 100% for recurrence. DISCUSSION The SCAIL score improved the identification of early recurrent stroke in subgroups that did not experience benefit in endarterectomy trials. Randomized trials are needed to test if a combined stenosis-inflammation strategy will improve selection for carotid revascularization where benefit is currently uncertain. CLASSIFICATION OF EVIDENCE This study provides Class II evidence that in patients with recent anterior circulation ischemic stroke who do not benefit from carotid revascularization, the SCAIL score accurately distinguishes those at risk for recurrent ipsilateral ischemic stroke.
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Affiliation(s)
- Pol Camps-Renom
- Stroke Unit - Department of Neurology. Institute of Biomedical Research Sant Pau (IIB-Sant Pau). Hospital de la Santa Creu i Sant Pau. Barcelona. Spain
| | - John McCabe
- Health Research Board Stroke Clinical Trials Network Ireland, Dublin, Ireland.,Neurovascular Clinical Science Unit, Stroke Service and Department of Neurology, Mater University Hospital/University College Dublin. Ireland
| | - Joan Martí-Fàbregas
- Stroke Unit - Department of Neurology. Institute of Biomedical Research Sant Pau (IIB-Sant Pau). Hospital de la Santa Creu i Sant Pau. Barcelona. Spain
| | - Nicola Giannotti
- Radiography & Diagnostic Imaging, School of Medicine, University College Dublin. Ireland.,Discipline of Medical Imaging Science, School of Health Sciences, Faculty of Medicine and Health, University of Sydney
| | | | - Jonathan P McNulty
- Radiography & Diagnostic Imaging, School of Medicine, University College Dublin. Ireland
| | - Jean-Claude Baron
- Department of Neurology, Université de Paris, Hopital Sainte-Anne. Paris, France
| | - Mary Barry
- Department of Vascular Surgery, St Vincent's University Hospital, and University College Dublin Ireland
| | - Shelagh B Coutts
- Departments of Clinical Neurosciences, Radiology and Community Health Sciences, University of Calgary, Calgary, AB, Canada
| | - Simon Cronin
- Health Research Board Stroke Clinical Trials Network Ireland, Dublin, Ireland.,Department of Neurology, Cork University Hospital, and Department of Clinical Neuroscience, College of Medicine and Health, University College Cork, Ireland
| | - Raquel Delgado-Mederos
- Stroke Unit - Department of Neurology. Institute of Biomedical Research Sant Pau (IIB-Sant Pau). Hospital de la Santa Creu i Sant Pau. Barcelona. Spain
| | - Eamon Dolan
- Health Research Board Stroke Clinical Trials Network Ireland, Dublin, Ireland.,Connolly Hospital Dublin and Royal College of Surgeons Ireland
| | - Shane Foley
- Radiography & Diagnostic Imaging, School of Medicine, University College Dublin. Ireland
| | - Marina Guasch-Jiménez
- Stroke Unit - Department of Neurology. Institute of Biomedical Research Sant Pau (IIB-Sant Pau). Hospital de la Santa Creu i Sant Pau. Barcelona. Spain
| | - Daniel Guisado-Alonso
- Stroke Unit - Department of Neurology. Institute of Biomedical Research Sant Pau (IIB-Sant Pau). Hospital de la Santa Creu i Sant Pau. Barcelona. Spain
| | - Joseph A Harbison
- Health Research Board Stroke Clinical Trials Network Ireland, Dublin, Ireland.,Stroke Service, Department of Geriatric Medicine, St James' Hospital and Trinity College Dublin Ireland
| | - Gillian Horgan
- Health Research Board Stroke Clinical Trials Network Ireland, Dublin, Ireland.,Neurovascular Clinical Science Unit, Stroke Service and Department of Neurology, Mater University Hospital/University College Dublin. Ireland
| | - Eoin C Kavanagh
- Department of Radiology, Mater University Hospital and University College Dublin Ireland
| | - Michael Marnane
- Health Research Board Stroke Clinical Trials Network Ireland, Dublin, Ireland.,Neurovascular Clinical Science Unit, Stroke Service and Department of Neurology, Mater University Hospital/University College Dublin. Ireland
| | - Alejandro Martinez-Domeño
- Stroke Unit - Department of Neurology. Institute of Biomedical Research Sant Pau (IIB-Sant Pau). Hospital de la Santa Creu i Sant Pau. Barcelona. Spain
| | - Ciaran McDonnell
- Department of Vascular Surgery, Mater University Hospital, and University College Dublin Ireland
| | - Vijay K Sharma
- Division of Neurology, National University Health System, and Yong Loo Lin School of Medicine, National University of Singapore
| | - David Williams
- Department of Geriatric and Stroke Medicine, RCSI University of Medicine and Health Sciences/Beaumont Hospital Dublin Ireland
| | - Martin O Connell
- Department of Radiology, Mater University Hospital and University College Dublin Ireland
| | - Sean Murphy
- Health Research Board Stroke Clinical Trials Network Ireland, Dublin, Ireland.,Neurovascular Clinical Science Unit, Stroke Service and Department of Neurology, Mater University Hospital/University College Dublin. Ireland
| | - Luis Prats-Sanchez
- Stroke Unit - Department of Neurology. Institute of Biomedical Research Sant Pau (IIB-Sant Pau). Hospital de la Santa Creu i Sant Pau. Barcelona. Spain
| | - Peter J Kelly
- Health Research Board Stroke Clinical Trials Network Ireland, Dublin, Ireland.,Neurovascular Clinical Science Unit, Stroke Service and Department of Neurology, Mater University Hospital/University College Dublin. Ireland
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