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Murphy SJX, Francis I, Nadarajan V. Prolonged Benign Episodic Unilateral Mydriasis in Hemiplegic Migraine. J Neuroophthalmol 2024; 44:e140. [PMID: 36166792 DOI: 10.1097/wno.0000000000001661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Stephen J X Murphy
- Department of Neurology (SJXM, IF) and Stroke Service (SJXM, IF, VN), University College London Hospitals NHS Foundation Trust, National Hospital for Neurology and Neurosurgery, London, United Kingdom; Department of Neurology (SJXM), Chelsea and Westminster NHS Foundation Trust, London, United Kingdom. Department of Geriatric Medicine (VN), Royal Free Hospital, London, United Kingdom
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Offiah C, Tierney S, Egan B, Collins RD, Ryan DJ, McCarthy AJ, Smith DR, Mahon J, Boyle E, Delaney H, O 'Donohoe R, Hurley A, Walsh RA, Murphy SM, Bogdanova-Mihaylova P, O 'Dowd S, Kelly MJ, Omer T, Coughlan T, O'Neill D, Martin M, Murphy SJX, McCabe DJH. Correction to: Frequency of inter‑specialty consensus decisions and adherence to advice following discussion at a weekly neurovascular multidisciplinary meeting. Ir J Med Sci 2024; 193:541. [PMID: 37269449 PMCID: PMC10808139 DOI: 10.1007/s11845-023-03396-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Affiliation(s)
- Chika Offiah
- Dept. of Neurology, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
- Stroke Service, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
| | - Sean Tierney
- Dept. of Vascular Surgery, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
| | - Bridget Egan
- Dept. of Vascular Surgery, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
| | - Ronán D Collins
- Stroke Service, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
- Dept. of Age‑Related Health Care, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
| | - Daniel J Ryan
- Stroke Service, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
- Dept. of Age‑Related Health Care, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
| | - Allan J McCarthy
- Dept. of Neurology, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
- Stroke Service, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
| | - Deirdre R Smith
- Dept. of Neurology, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
- Vascular Neurology Research Foundation, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
| | - James Mahon
- Stroke Service, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
- Dept. of Age‑Related Health Care, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
| | - Emily Boyle
- Dept. of Vascular Surgery, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
| | - Holly Delaney
- Dept. of Radiology, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
| | - Rory O 'Donohoe
- Dept. of Radiology, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
| | - Alison Hurley
- Dept. of Radiology, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
| | - Richard A Walsh
- Dept. of Neurology, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
| | - Sinead M Murphy
- Dept. of Neurology, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
- Stroke Service, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
- Academic Unit of Neurology, School of Medicine, Trinity College Dublin, Dublin, Ireland
| | - Petya Bogdanova-Mihaylova
- Dept. of Neurology, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
| | - Sean O 'Dowd
- Dept. of Neurology, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
| | - Mark J Kelly
- Dept. of Neurology, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
- Stroke Service, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
| | - Taha Omer
- Dept. of Neurology, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
- Stroke Service, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
| | - Tara Coughlan
- Stroke Service, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
- Dept. of Age‑Related Health Care, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
| | - Desmond O'Neill
- Stroke Service, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
- Dept. of Age‑Related Health Care, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
| | - Mary Martin
- Dept. of Geriatric and Stroke Medicine, Naas General Hospital, Naas, Ireland
| | - Stephen J X Murphy
- Dept. of Neurology, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
- Stroke Service, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
| | - Dominick J H McCabe
- Dept. of Neurology, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland.
- Stroke Service, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland.
- Vascular Neurology Research Foundation, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland.
- Dept. of Clinical Neurosciences, Royal Free Campus, UCL Queen Square Institute of Neurology, London, UK.
- Academic Unit of Neurology, School of Medicine, Trinity College Dublin, Dublin, Ireland.
- Present Address: Vascular Neurology Research Foundation, c/o Department of Neurology, Tallaght University Hospital /AMNCH, Tallaght, Dublin 24, Ireland.
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Offiah C, Tierney S, Egan B, Collins RD, Ryan DJ, McCarthy AJ, Smith DR, Mahon J, Boyle E, Delaney H, O 'Donohoe R, Hurley A, Walsh RA, Murphy SM, Bogdanova-Mihaylova P, O 'Dowd S, Kelly MJ, Omer T, Coughlan T, O'Neill D, Martin M, Murphy SJX, McCabe DJH. Frequency of inter-specialty consensus decisions and adherence to advice following discussion at a weekly neurovascular multidisciplinary meeting. Ir J Med Sci 2023; 192:3051-3062. [PMID: 37081289 PMCID: PMC10119010 DOI: 10.1007/s11845-023-03319-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Accepted: 02/13/2023] [Indexed: 04/22/2023]
Abstract
BACKGROUND/AIMS Data are limited on the frequency of 'consensus decisions' between sub-specialists attending a neurovascular multidisciplinary meeting (MDM) regarding management of patients with extracranial carotid/vertebral stenoses and post-MDM 'adherence' to such advice. METHODS This prospective audit/quality improvement project collated prospectively-recorded data from a weekly Neurovascular/Stroke Centre MDM documenting the proportion of extracranial carotid/vertebral stenosis patients in whom 'consensus management decisions' were reached by neurologists, vascular surgeons, stroke physicians-geriatricians and neuroradiologists. Adherence to MDM advice was analysed in asymptomatic carotid stenosis (ACS), symptomatic carotid stenosis (SCS), 'indeterminate symptomatic status stenosis' (ISS) and vertebral artery stenosis (VAS) patients, including intervals between index event to MDM + / - intervention. RESULTS One hundred fifteen patients were discussed: 108 with carotid stenosis and 7 with VAS. Consensus regarding management was noted in 96.5% (111/115): 100% with ACS and VAS, 96.2% with SCS and 92.9% with ISS. Adherence to MDM management advice was 96.4% (107/111): 100% in ACS, ISS and VAS patients; 92% (46/50) in SCS patients. The median interval from index symptoms to revascularisation in 50-99% SCS patients was 12.5 days (IQR: 9-18.3 days; N = 26), with a median interval from MDM to revascularisation of 5.5 days (IQR: 1-7 days). Thirty patients underwent revascularisation. Two out of twenty-nine patients (6.9%) with either SCS or ISS had a peri-procedural ipsilateral ischaemic stroke, with no further strokes/deaths during 3-months follow-up. CONCLUSIONS The high frequency of inter-specialty consensus regarding management and adherence to proposed treatment supports a collaborative/multidisciplinary model of care in patients with extracranial arterial stenoses. Service development should aim to shorten times between MDM discussion-intervention and optimise prevention of stroke/death.
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Grants
- Meath Foundation, Vascular Neurology Research Foundation,
- The Adelaide Health Foundation Ireland, Enterprise Ireland-Innovation Partnership Programme
- Trinity College Dublin Innovation Bursary, The Meath Foundation, Ireland, Joint Irish Institute of Clinical Neuroscience/Merck Serono Fellowship in Neuroscience Grant, The Vascular Neurology Research Foundation Ireland, Bayer HealthCare, Ireland and Verum
- The Meath Foundation, Ireland; The Adelaide Health Foundation, Ireland; The Vascular Neurology Research Foundation Ireland; the Enterprise Ireland-Innovation Partnership Programme (co-funded by the European Regional Development Fund); and by unrestricted e
- University of Dublin, Trinity College
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Affiliation(s)
- Chika Offiah
- Dept. of Neurology, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
- Stroke Service, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
| | - Sean Tierney
- Dept. of Vascular Surgery, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
| | - Bridget Egan
- Dept. of Vascular Surgery, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
| | - Ronán D Collins
- Stroke Service, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
- Dept. of Age-Related Health Care, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
| | - Daniel J Ryan
- Stroke Service, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
- Dept. of Age-Related Health Care, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
| | - Allan J McCarthy
- Dept. of Neurology, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
- Stroke Service, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
| | - Deirdre R Smith
- Dept. of Neurology, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
- Vascular Neurology Research Foundation, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
| | - James Mahon
- Stroke Service, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
- Dept. of Age-Related Health Care, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
| | - Emily Boyle
- Dept. of Vascular Surgery, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
| | - Holly Delaney
- Dept. of Radiology, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
| | - Rory O 'Donohoe
- Dept. of Radiology, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
| | - Alison Hurley
- Dept. of Radiology, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
| | - Richard A Walsh
- Dept. of Neurology, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
| | - Sinead M Murphy
- Dept. of Neurology, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
- Stroke Service, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
- Academic Unit of Neurology, School of Medicine, Trinity College Dublin, Dublin, Ireland
| | - Petya Bogdanova-Mihaylova
- Dept. of Neurology, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
| | - Sean O 'Dowd
- Dept. of Neurology, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
| | - Mark J Kelly
- Dept. of Neurology, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
- Stroke Service, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
| | - Taha Omer
- Dept. of Neurology, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
- Stroke Service, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
| | - Tara Coughlan
- Stroke Service, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
- Dept. of Age-Related Health Care, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
| | - Desmond O'Neill
- Stroke Service, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
- Dept. of Age-Related Health Care, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
| | - Mary Martin
- Dept. of Geriatric and Stroke Medicine, Naas General Hospital, Naas, Ireland
| | - Stephen J X Murphy
- Dept. of Neurology, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
- Stroke Service, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
| | - Dominick J H McCabe
- Dept. of Neurology, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland.
- Stroke Service, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland.
- Vascular Neurology Research Foundation, Tallaght University Hospital (TUH) / The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH), Dublin, Ireland.
- Dept. of Clinical Neurosciences, Royal Free Campus, UCL Queen Square Institute of Neurology, London, UK.
- Academic Unit of Neurology, School of Medicine, Trinity College Dublin, Dublin, Ireland.
- Vascular Neurology Research Foundation, c/o Department of Neurology, Tallaght University Hospital /AMNCH, Tallaght, Dublin, 24, Ireland.
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Subramanian A, Delaney S, Murphy SJX, Smith DR, Offiah C, McMahon J, de Borst GJ, Naylor AR, Hamilton G, Kinsella JA, McCabe DJH. Platelet Biomarkers in Patients with Atherosclerotic Extracranial Carotid Artery Stenosis: A Systematic Review. Eur J Vasc Endovasc Surg 2022; 63:379-389. [PMID: 35181225 DOI: 10.1016/j.ejvs.2021.10.045] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 10/12/2021] [Accepted: 10/16/2021] [Indexed: 02/08/2023]
Abstract
OBJECTIVE The aim was to enhance understanding of the role of platelet biomarkers in the pathogenesis of vascular events and risk stratifying patients with asymptomatic or symptomatic atherosclerotic carotid stenosis. DATA SOURCES Systematic review conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement. REVIEW METHODS A systematic review collated data from 1975 to 2020 on ex vivo platelet activation and platelet function/reactivity in patients with atherosclerotic carotid stenosis. RESULTS Forty-three studies met the inclusion criteria; the majority included patients on antiplatelet therapy. Five studies showed increased platelet biomarkers in patients with ≥ 30% asymptomatic carotid stenosis (ACS) vs. controls, with one neutral study. Preliminary data from one study suggested that quantification of "coated platelets" in combination with stenosis severity may aid risk stratification in patients with ≥ 50% - 99% ACS. Platelets were excessively activated in patients with ≥ 30% symptomatic carotid stenosis (SCS) vs. controls (≥ 11 positive studies and one neutral study). Antiplatelet-High on Treatment Platelet Reactivity (HTPR), previously called "antiplatelet resistance", was observed in 23% - 57% of patients on aspirin, with clopidogrel-HTPR in 25% - 100% of patients with ≥ 50% - 99% ACS. Aspirin-HTPR was noted in 9.5% - 64% and clopidogrel-HTPR in 0 - 83% of patients with ≥ 50% SCS. However, the data do not currently support the use of ex vivo platelet function/reactivity testing to tailor antiplatelet therapy outside of a research setting. Platelets are excessively activated (n = 5), with increased platelet counts (n = 3) in recently symptomatic vs. asymptomatic patients, including those without micro-emboli on transcranial Doppler (TCD) monitoring (n = 2). Most available studies (n = 7) showed that platelets become more reactive or activated following carotid endarterectomy or stenting, either as an acute phase response to intervention or peri-procedural treatment. CONCLUSION Platelets are excessively activated in patients with carotid stenosis vs. controls, in recently symptomatic vs. asymptomatic patients, and may become activated/hyper-reactive following carotid interventions despite commonly prescribed antiplatelet regimens. Further prospective multicentre studies are required to determine whether models combining clinical, neurovascular imaging, and platelet biomarker data can facilitate optimised antiplatelet therapy in individual patients with carotid stenosis.
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Affiliation(s)
- Arun Subramanian
- Department of Neurology, Tallaght University Hospital/Adelaide and Meath Hospital, Dublin, Incorporating the National Children's Hospital (AMNCH), Tallaght, Dublin, Ireland; Stroke Service, Tallaght University Hospital/Adelaide and Meath Hospital, Dublin, Incorporating the National Children's Hospital (AMNCH), Tallaght, Dublin, Ireland
| | - Siobhan Delaney
- Department of Neurology, Tallaght University Hospital/Adelaide and Meath Hospital, Dublin, Incorporating the National Children's Hospital (AMNCH), Tallaght, Dublin, Ireland; Stroke Service, Tallaght University Hospital/Adelaide and Meath Hospital, Dublin, Incorporating the National Children's Hospital (AMNCH), Tallaght, Dublin, Ireland
| | - Stephen J X Murphy
- Department of Neurology, Tallaght University Hospital/Adelaide and Meath Hospital, Dublin, Incorporating the National Children's Hospital (AMNCH), Tallaght, Dublin, Ireland; Stroke Service, Tallaght University Hospital/Adelaide and Meath Hospital, Dublin, Incorporating the National Children's Hospital (AMNCH), Tallaght, Dublin, Ireland
| | - Deirdre R Smith
- Department of Neurology, Tallaght University Hospital/Adelaide and Meath Hospital, Dublin, Incorporating the National Children's Hospital (AMNCH), Tallaght, Dublin, Ireland; Vascular Neurology Research Foundation, Tallaght University Hospital/ Adelaide and Meath Hospital, Dublin, Incorporating the National Children's Hospital (AMNCH), Tallaght, Dublin, Ireland
| | - Chika Offiah
- Department of Neurology, Tallaght University Hospital/Adelaide and Meath Hospital, Dublin, Incorporating the National Children's Hospital (AMNCH), Tallaght, Dublin, Ireland; Stroke Service, Tallaght University Hospital/Adelaide and Meath Hospital, Dublin, Incorporating the National Children's Hospital (AMNCH), Tallaght, Dublin, Ireland
| | - Jean McMahon
- Tallaght University Hospital Library, Tallaght University Hospital/ Adelaide and Meath Hospital, Dublin, Incorporating the National Children's Hospital (AMNCH), Tallaght, Dublin, Ireland
| | - Gert J de Borst
- Department of Vascular Surgery, University Medical Centre Utrecht, Netherlands
| | - A Ross Naylor
- The Leicester Vascular Institute, Glenfield Hospital, Leicester, UK
| | - George Hamilton
- Department of Vascular Surgery, University Department of Surgery, Royal Free Hampstead NHS Trust, London, UK
| | - Justin A Kinsella
- Department of Neurology, St Vincent's University Hospital/University College Dublin, Ireland
| | - Dominick J H McCabe
- Department of Neurology, Tallaght University Hospital/Adelaide and Meath Hospital, Dublin, Incorporating the National Children's Hospital (AMNCH), Tallaght, Dublin, Ireland; Stroke Service, Tallaght University Hospital/Adelaide and Meath Hospital, Dublin, Incorporating the National Children's Hospital (AMNCH), Tallaght, Dublin, Ireland; Vascular Neurology Research Foundation, Tallaght University Hospital/ Adelaide and Meath Hospital, Dublin, Incorporating the National Children's Hospital (AMNCH), Tallaght, Dublin, Ireland; Department of Clinical Neurosciences, Royal Free Campus, UCL Queen Square Institute of Neurology, London, UK; Academic Unit of Neurology, School of Medicine, Trinity College Dublin, Dublin, Ireland.
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5
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Murphy SJX, Lim ST, Hickey F, Kinsella JA, Smith DR, Tierney S, Egan B, Feeley TM, Murphy SM, Collins DR, Coughlan T, O'Neill D, Harbison JA, Madhavan P, O'Neill SM, Colgan MP, O'Donnell JS, O'Sullivan JM, Hamilton G, McCabe DJH. von Willebrand Factor Antigen, von Willebrand Factor Propeptide, and ADAMTS13 in Carotid Stenosis and Their Relationship with Cerebral Microemboli. Thromb Haemost 2020; 121:86-97. [PMID: 32932544 DOI: 10.1055/s-0040-1715440] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
BACKGROUND The relationship between von Willebrand factor antigen (VWF:Ag), VWF propeptide (VWFpp), VWFpp/VWF:Ag ratio, ADAMTS13 activity, and microembolic signal (MES) status in carotid stenosis is unknown. METHODS This prospective, multicenter study simultaneously assessed plasma VWF:Ag levels, VWFpp levels and ADAMTS13 activity, and their relationship with MES in asymptomatic versus symptomatic moderate-to-severe (≥50-99%) carotid stenosis patients. One-hour transcranial Doppler ultrasound of the middle cerebral arteries classified patients as MES+ve or MES-ve. RESULTS Data from 34 asymptomatic patients were compared with 43 symptomatic patients in the "early phase" (≤4 weeks) and 37 patients in the "late phase" (≥3 months) after transient ischemic attack (TIA)/ischemic stroke. VWF:Ag levels were higher (p = 0.049) and VWFpp/VWF:Ag ratios lower (p = 0.006) in early symptomatic than in asymptomatic patients overall, and in early symptomatic versus asymptomatic MES-ve subgroups (p ≤0.02). There were no intergroup differences in VWFpp expression or ADAMTS13 activity (p ≥0.05). VWF:Ag levels and ADAMTS13 activity decreased (p ≤ 0.048) and VWFpp/VWF:Ag ratios increased (p = 0.03) in symptomatic patients followed up from the early to late phases after TIA/stroke. Although there were no differences in the proportions of symptomatic and asymptomatic patients with blood group O, a combined analysis of early symptomatic and asymptomatic patients revealed lower median VWF:Ag levels in patients with blood group O versus those without blood group O (9.59 vs. 12.32 µg/mL, p = 0.035). DISCUSSION VWF:Ag expression, a marker of endothelial ± platelet activation, is enhanced in recently symptomatic versus asymptomatic carotid stenosis patients, including in MES-ve patients, and decreases with ADAMTS13 activity over time following atherosclerotic TIA/ischemic stroke.
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Affiliation(s)
- Stephen J X Murphy
- Department of Neurology, The Adelaide and Meath Hospital, Dublin incorporating the National Children's Hospital (AMNCH)/Tallaght University Hospital, Dublin, Ireland.,Stroke Service, AMNCH/Tallaght University Hospital, Dublin, Ireland
| | - Soon Tjin Lim
- Department of Neurology, The Adelaide and Meath Hospital, Dublin incorporating the National Children's Hospital (AMNCH)/Tallaght University Hospital, Dublin, Ireland.,Stroke Service, AMNCH/Tallaght University Hospital, Dublin, Ireland.,Department of Clinical Neurosciences, Royal Free Campus, UCL Queen Square Institute of Neurology, London, United Kingdom
| | - Fionnuala Hickey
- Department of Clinical Medicine, Trinity Centre for Health Sciences, School of Medicine, Trinity College, Dublin, Ireland
| | - Justin A Kinsella
- Department of Neurology, St Vincent's University Hospital and University College Dublin, Dublin, Ireland
| | - Deirdre R Smith
- Department of Neurology, The Adelaide and Meath Hospital, Dublin incorporating the National Children's Hospital (AMNCH)/Tallaght University Hospital, Dublin, Ireland.,Vascular Neurology Research Foundation, C/O Dept of Neurology, AMNCH/Tallaght University Hospital, Dublin, Ireland
| | - Sean Tierney
- Department of Vascular Surgery, AMNCH/Tallaght University Hospital, Dublin, Ireland
| | - Bridget Egan
- Department of Vascular Surgery, AMNCH/Tallaght University Hospital, Dublin, Ireland
| | - T Martin Feeley
- Department of Vascular Surgery, AMNCH/Tallaght University Hospital, Dublin, Ireland.,Clinical Directorate, Dublin Midlands Hospital Group, Dublin Ireland
| | - Sinéad M Murphy
- Department of Neurology, The Adelaide and Meath Hospital, Dublin incorporating the National Children's Hospital (AMNCH)/Tallaght University Hospital, Dublin, Ireland.,Stroke Service, AMNCH/Tallaght University Hospital, Dublin, Ireland.,Academic Unit of Neurology, School of Medicine, Trinity College Dublin, Dublin, Ireland
| | - D Rónán Collins
- Stroke Service, AMNCH/Tallaght University Hospital, Dublin, Ireland.,Age-Related Health Care Department, AMNCH/Tallaght University Hospital, Dublin, Ireland
| | - Tara Coughlan
- Stroke Service, AMNCH/Tallaght University Hospital, Dublin, Ireland.,Age-Related Health Care Department, AMNCH/Tallaght University Hospital, Dublin, Ireland
| | - Desmond O'Neill
- Stroke Service, AMNCH/Tallaght University Hospital, Dublin, Ireland.,Age-Related Health Care Department, AMNCH/Tallaght University Hospital, Dublin, Ireland
| | - Joseph A Harbison
- Department of Medicine for the Elderly/Stroke Service, St James's Hospital and School of Medicine, Trinity College Dublin, Dublin, Ireland
| | - Prakash Madhavan
- Department of Vascular Surgery, St James's Hospital, Dublin, Ireland
| | - Sean M O'Neill
- Department of Vascular Surgery, St James's Hospital, Dublin, Ireland
| | - Mary-Paula Colgan
- Department of Vascular Surgery, St James's Hospital, Dublin, Ireland
| | - James S O'Donnell
- Department of Haematology, St James's Hospital, Dublin, Ireland.,Department of Molecular and Cellular Therapeutics, Royal College of Surgeons in Ireland, Dublin, Ireland.,Irish Centre for Vascular Biology, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Jamie M O'Sullivan
- Department of Molecular and Cellular Therapeutics, Royal College of Surgeons in Ireland, Dublin, Ireland.,Irish Centre for Vascular Biology, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - George Hamilton
- Department of Vascular Surgery, University Department of Surgery, Royal Free Hampstead NHS Trust, London, United Kingdom
| | - Dominick J H McCabe
- Department of Neurology, The Adelaide and Meath Hospital, Dublin incorporating the National Children's Hospital (AMNCH)/Tallaght University Hospital, Dublin, Ireland.,Stroke Service, AMNCH/Tallaght University Hospital, Dublin, Ireland.,Department of Clinical Neurosciences, Royal Free Campus, UCL Queen Square Institute of Neurology, London, United Kingdom.,Vascular Neurology Research Foundation, C/O Dept of Neurology, AMNCH/Tallaght University Hospital, Dublin, Ireland.,Academic Unit of Neurology, School of Medicine, Trinity College Dublin, Dublin, Ireland.,Irish Centre for Vascular Biology, Royal College of Surgeons in Ireland, Dublin, Ireland
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6
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Murphy SJX, Lim ST, Kinsella JA, Tierney S, Egan B, Feeley TM, Murphy SM, Walsh RA, Collins DR, Coughlan T, O'Neill D, Harbison JA, Madhavan P, O'Neill SM, Colgan MP, Cox D, Moran N, Hamilton G, Meaney JF, McCabe DJH. Relationship between 'on-treatment platelet reactivity', shear stress, and micro-embolic signals in asymptomatic and symptomatic carotid stenosis. J Neurol 2019; 267:168-184. [PMID: 31606758 DOI: 10.1007/s00415-019-09550-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 09/17/2019] [Accepted: 09/19/2019] [Indexed: 12/25/2022]
Abstract
BACKGROUND Assessment of 'high on-treatment platelet reactivity (HTPR)' could enhance understanding of the pathophysiology of first or recurrent vascular events in carotid stenosis patients on antiplatelet therapy. METHODS This prospective, multi-centre study assessed antiplatelet-HTPR status and its relationship with micro-emboli signals (MES) in asymptomatic vs. symptomatic ≥ 50-99% carotid stenosis. Platelet function/reactivity was assessed under 'moderately high shear stress' with the PFA-100® and 'low shear stress' with VerifyNow® and Multiplate® analysers. Bilateral 1-h transcranial Doppler ultrasound of the middle cerebral arteries classified patients as MES + ve or MES - ve. RESULTS Data from 34 asymptomatic patients were compared with 43 symptomatic patients in the 'early phase' (≤ 4 weeks) and 37 patients in the 'late phase' (≥ 3 months) after TIA/ischaemic stroke. Median daily aspirin doses were higher in early symptomatic (225 mg; P < 0.001), but not late symptomatic (75 mg; P = 0.62) vs. asymptomatic patients (75 mg). There was a lower prevalence of aspirin-HTPR in early (28.6%; P = 0.028), but not late symptomatic (38.9%; P = 0.22) compared with asymptomatic patients (56.7%) on the PFA-100®, but not on the VerifyNow® or Multiplate® (P ≤ 0.53). Early symptomatic patients had a higher prevalence of aspirin-HTPR on the PFA-100® (28.6%) vs. VerifyNow® (9.5%; P = 0.049), but not Multiplate® assays (11.9%, P = 0.10). There was no difference in aspirin-HTPR prevalence between any symptomatic vs. asymptomatic MES + ve or MES - ve subgroup. DISCUSSION Recently symptomatic moderate-severe carotid stenosis patients had a lower prevalence of aspirin-HTPR than their asymptomatic counterparts on the PFA-100®, likely related to higher aspirin doses. The prevalence of antiplatelet-HTPR was positively influenced by higher shear stress levels, but not MES status.
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Affiliation(s)
- S J X Murphy
- Department of Neurology, AMNCH/Tallaght University Hospital, Dublin, Ireland.,Stroke Service, AMNCH/Tallaght University Hospital, Dublin, Ireland
| | - S T Lim
- Department of Neurology, AMNCH/Tallaght University Hospital, Dublin, Ireland.,Stroke Service, AMNCH/Tallaght University Hospital, Dublin, Ireland
| | - J A Kinsella
- Department of Neurology, St Vincent's University Hospital, University College Dublin, Dublin, Ireland
| | - S Tierney
- Department of Vascular Surgery, AMNCH/Tallaght University Hospital, Dublin, Ireland
| | - B Egan
- Department of Vascular Surgery, AMNCH/Tallaght University Hospital, Dublin, Ireland
| | - T M Feeley
- Department of Vascular Surgery, AMNCH/Tallaght University Hospital, Dublin, Ireland.,Dublin Midlands Hospital Group, Dublin, Ireland
| | - S M Murphy
- Department of Neurology, AMNCH/Tallaght University Hospital, Dublin, Ireland.,Stroke Service, AMNCH/Tallaght University Hospital, Dublin, Ireland.,Academic Unit of Neurology, School of Medicine, Trinity College Dublin, Dublin, Ireland
| | - R A Walsh
- Department of Neurology, AMNCH/Tallaght University Hospital, Dublin, Ireland.,Academic Unit of Neurology, School of Medicine, Trinity College Dublin, Dublin, Ireland
| | - D R Collins
- Age-Related Health Care Department, AMNCH/Tallaght University Hospital, Dublin, Ireland.,Stroke Service, AMNCH/Tallaght University Hospital, Dublin, Ireland
| | - T Coughlan
- Age-Related Health Care Department, AMNCH/Tallaght University Hospital, Dublin, Ireland.,Stroke Service, AMNCH/Tallaght University Hospital, Dublin, Ireland
| | - D O'Neill
- Age-Related Health Care Department, AMNCH/Tallaght University Hospital, Dublin, Ireland.,Stroke Service, AMNCH/Tallaght University Hospital, Dublin, Ireland
| | - J A Harbison
- Department of Medicine for the Elderly/Stroke Service, St. James's Hospital/Trinity College Dublin, Dublin, Ireland
| | - P Madhavan
- Department of Vascular Surgery, St. James's Hospital/Trinity College Dublin, Dublin, Ireland
| | - S M O'Neill
- Department of Vascular Surgery, St. James's Hospital/Trinity College Dublin, Dublin, Ireland
| | - M P Colgan
- Department of Vascular Surgery, St. James's Hospital/Trinity College Dublin, Dublin, Ireland
| | - D Cox
- Department of Molecular and Cellular Therapeutics, Royal College of Surgeons in Ireland, Dublin, Ireland.,Irish Centre for Vascular Biology, Dublin, Ireland
| | - N Moran
- Department of Molecular and Cellular Therapeutics, Royal College of Surgeons in Ireland, Dublin, Ireland.,Irish Centre for Vascular Biology, Dublin, Ireland
| | - G Hamilton
- Department of Vascular Surgery, University Department of Surgery, Royal Free Hampstead NHS Trust, London, UK
| | - J F Meaney
- Department of Radiology, Centre for Advanced Medical Imaging, St. James's Hospital/Trinity College Dublin, Dublin, Ireland
| | - D J H McCabe
- Vascular Neurology Research Foundation, C/O Department of Neurology, The Adelaide and Meath Hospital, Dublin, Incorporating the National Children's Hospital (AMNCH)/Tallaght University Hospital, Tallaght, Dublin 24, Ireland. .,Department of Neurology, AMNCH/Tallaght University Hospital, Dublin, Ireland. .,Stroke Service, AMNCH/Tallaght University Hospital, Dublin, Ireland. .,Department of Clinical Neurosciences, Royal Free Campus, UCL Queen Square Institute of Neurology, London, UK. .,Irish Centre for Vascular Biology, Dublin, Ireland. .,Stroke Clinical Trials Network Ireland, Dublin, Ireland. .,Academic Unit of Neurology, School of Medicine, Trinity College Dublin, Dublin, Ireland.
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7
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Murphy SJX, Lim ST, Kinsella JA, Tierney S, Egan B, Feeley TM, Murphy SM, Walsh RA, Collins DR, Coughlan T, O'Neill D, Harbison JA, Madhavan P, O'Neill SM, Colgan MP, Cox D, Moran N, Hamilton G, McCabe DJH. Increased Leucocyte-Platelet Complex Formation in Recently Symptomatic versus Asymptomatic Carotid Stenosis Patients and in Micro-emboli Negative Subgroups. Thromb Haemost 2019; 119:821-833. [PMID: 30769362 DOI: 10.1055/s-0039-1678666] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
INTRODUCTION Cerebral micro-embolic signals (MES) predict risk of stroke in carotid stenosis patients. However, MES-negative 'recently symptomatic patients' also have a higher stroke risk than 'asymptomatic patients'. Differences in platelet activation status may contribute to this disparity in risk. METHODS This prospective, observational study assessed platelet biomarkers and their relationship with MES in asymptomatic versus symptomatic moderate (≥50-69%) or severe (≥70-99%) carotid stenosis patients. Full blood count parameters were measured and whole-blood flow cytometry was used to quantify platelet surface CD62P and CD63 expression and leucocyte-platelet complex formation. Bilateral simultaneous transcranial Doppler ultrasound of the middle cerebral arteries classified patients as 'MES positive' or 'MES negative'. RESULTS Data from 34 asymptomatic patients were compared with those from 43 symptomatic patients in the 'early phase' (≤ 4 weeks) and 37 of these symptomatic patients in the 'late phase' (≥ 3 months) after transient ischaemic attack/ischaemic stroke. There were no differences in %CD62P or %CD63 expression between early or late symptomatic and asymptomatic patients overall (p > 0.05). The percentage of lymphocyte-platelet complexes was higher in early symptomatic than in asymptomatic patients (2.8 vs. 2.16%; p < 0.001). MES were more commonly observed in early symptomatic (31.4%; p = 0.027) but not in late symptomatic (6.7%; p = 0.996) versus asymptomatic patients (7.1%). The percentage of lymphocyte-platelet complexes was higher in early symptomatic than in asymptomatic MES-negative patients (2.7 vs. 2.17%; p = 0.02). CONCLUSION These data add to the evidence that leucocyte-platelet complex formation/platelet activation is increased in recently symptomatic versus asymptomatic patients, and may contribute to the pathogenesis of first and subsequent strokes in carotid stenosis patients, including those who are MES negative.
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Affiliation(s)
- Stephen J X Murphy
- Department of Neurology, Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH)/Tallaght University Hospital, Dublin, Ireland.,Stroke Service, Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH)/Tallaght University Hospital, Dublin, Ireland
| | - Soon Tjin Lim
- Department of Neurology, Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH)/Tallaght University Hospital, Dublin, Ireland.,Stroke Service, Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH)/Tallaght University Hospital, Dublin, Ireland
| | - Justin A Kinsella
- Department of Neurology, St Vincent's University Hospital, University College Dublin, Dublin, Ireland
| | - Sean Tierney
- Department of Vascular Surgery, Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH)/Tallaght University Hospital, Dublin, Ireland
| | - Bridget Egan
- Department of Vascular Surgery, Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH)/Tallaght University Hospital, Dublin, Ireland
| | - T M Feeley
- Department of Vascular Surgery, Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH)/Tallaght University Hospital, Dublin, Ireland.,Dublin Midlands Hospital Group, Ireland
| | - Sinead M Murphy
- Department of Neurology, Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH)/Tallaght University Hospital, Dublin, Ireland.,Age-Related Health Care Department, Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH)/Tallaght University Hospital, Dublin, Ireland.,Academic Unit of Neurology, School of Medicine, Trinity College Dublin, Ireland
| | - Richard A Walsh
- Department of Neurology, Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH)/Tallaght University Hospital, Dublin, Ireland.,Academic Unit of Neurology, School of Medicine, Trinity College Dublin, Ireland
| | - D R Collins
- Stroke Service, Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH)/Tallaght University Hospital, Dublin, Ireland.,Age-Related Health Care Department, Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH)/Tallaght University Hospital, Dublin, Ireland
| | - Tara Coughlan
- Stroke Service, Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH)/Tallaght University Hospital, Dublin, Ireland.,Age-Related Health Care Department, Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH)/Tallaght University Hospital, Dublin, Ireland
| | - Desmond O'Neill
- Stroke Service, Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH)/Tallaght University Hospital, Dublin, Ireland.,Age-Related Health Care Department, Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH)/Tallaght University Hospital, Dublin, Ireland
| | - Joseph A Harbison
- Department of Medicine for the Elderly/Stroke Service, St James Hospital/Trinity College Dublin, Ireland
| | - Prakash Madhavan
- Department of Vascular Surgery, St James Hospital/Trinity College Dublin, Dublin, Ireland
| | - Sean M O'Neill
- Department of Vascular Surgery, St James Hospital/Trinity College Dublin, Dublin, Ireland
| | - Mary P Colgan
- Department of Vascular Surgery, St James Hospital/Trinity College Dublin, Dublin, Ireland
| | - Dermot Cox
- Department of Molecular and Cellular Therapeutics, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Niamh Moran
- Department of Molecular and Cellular Therapeutics, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - George Hamilton
- Department of Vascular Surgery, University Department of Surgery, Royal Free Hampstead NHS Trust, London, United Kingdom
| | - Dominick J H McCabe
- Department of Neurology, Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH)/Tallaght University Hospital, Dublin, Ireland.,Stroke Service, Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH)/Tallaght University Hospital, Dublin, Ireland.,Age-Related Health Care Department, Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH)/Tallaght University Hospital, Dublin, Ireland.,Vascular Neurology Research Foundation, c/o Department of Neurology, Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH)/Tallaght University Hospital, Dublin, Ireland.,Department of Clinical Neurosciences, Royal Free Campus, UCL Institute of Neurology, London, United Kingdom.,Irish Centre for Vascular Biology, Dublin, Ireland
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Delaney S, O'Connor G, Reardon W, Murphy SJX, Tierney S, Ryan BM, Delaney H, Doherty CP, Guiney M, Brennan P, Tobin WO, McCabe DJH. Extracranial and Intracranial Vasculopathy With "Moyamoya Phenomenon" in Association With Alagille Syndrome. Front Neurol 2019; 9:1194. [PMID: 30761079 PMCID: PMC6362309 DOI: 10.3389/fneur.2018.01194] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Accepted: 12/31/2018] [Indexed: 01/21/2023] Open
Abstract
Background: Alagille syndrome (AGS) is an autosomal-dominant, multisystem disorder caused by mutations in the JAG1 gene. Case Description: A 34-year-old man was referred to our service 10 years ago with focal seizures with impaired awareness and transient slurred speech. He had a 5-year history of intermittent left monocular low-flow retinopathy. He has a family history of AGS. General examination revealed mild hypertension, aortic regurgitation, and livedo reticularis. Neurological examination was normal. Investigations: He had mild hyperlipidaemia and persistently-positive lupus anticoagulant consistent with primary anti-phospholipid syndrome. Color Doppler ultrasound revealed low velocity flow in a narrowed extracranial left internal carotid artery (ICA). MR and CT angiography revealed a diffusely narrowed extracranial and intracranial left ICA. Formal cerebral angiography confirmed severe left ICA narrowing consistent with a left ICA “vasculopathy” and moyamoya phenomenon. Transthoracic echocardiogram revealed a bicuspid aortic valve and aortic incompetence. Molecular genetic analysis identified a missense mutation (A211P) in exon 4 of the JAG1 gene, consistent with AGS. Discussion: AGS should be considered in young adults with TIAs/stroke and unexplained extracranial or intracranial vascular abnormalities, and/or moyamoya phenomenon, even in the absence of other typical phenotypic features. Gene panels should include JAG1 gene testing in similar patients.
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Affiliation(s)
- Siobhan Delaney
- Department of Neurology, The Adelaide and Meath Hospital, Dublin, Incorporating The National Children's Hospital (AMNCH)/Tallaght University Hospital, Dublin, Ireland.,Stroke Service, AMNCH/Tallaght University Hospital, Dublin, Ireland
| | - Ged O'Connor
- Department of Neurology, University Hospital Waterford, Waterford, Ireland
| | - William Reardon
- National Centre for Medical Genetics, Our Lady's Children's Hospital, Dublin, Ireland
| | - Stephen J X Murphy
- Department of Neurology, The Adelaide and Meath Hospital, Dublin, Incorporating The National Children's Hospital (AMNCH)/Tallaght University Hospital, Dublin, Ireland.,Stroke Service, AMNCH/Tallaght University Hospital, Dublin, Ireland.,Vascular Neurology Research Foundation, C/O Department of Neurology, AMNCH/Tallaght University Hospital, Dublin, Ireland
| | - Sean Tierney
- Department of Vascular Surgery, AMNCH/Tallaght University Hospital, Dublin, Ireland
| | - Barbara M Ryan
- Department of Gastroenterology, AMNCH/Tallaght University Hospital, and Department of Clinical Medicine, Trinity College Dublin, Dublin, Ireland
| | - Holly Delaney
- Department of Radiology, AMNCH/Tallaght University Hospital, Dublin, Ireland
| | - Colin P Doherty
- Department of Neurology, St James's Hospital, Dublin, Ireland
| | - Michael Guiney
- Department of Radiology, St James's Hospital, Dublin, Ireland
| | - Paul Brennan
- Department of Neuroradiology, Beaumont Hospital, Dublin, Ireland
| | - W Oliver Tobin
- Department of Neurology, The Adelaide and Meath Hospital, Dublin, Incorporating The National Children's Hospital (AMNCH)/Tallaght University Hospital, Dublin, Ireland.,Stroke Service, AMNCH/Tallaght University Hospital, Dublin, Ireland.,Department of Neurology, College of Medicine, Mayo Clinic, Rochester, MN, United States
| | - Dominick J H McCabe
- Department of Neurology, The Adelaide and Meath Hospital, Dublin, Incorporating The National Children's Hospital (AMNCH)/Tallaght University Hospital, Dublin, Ireland.,Stroke Service, AMNCH/Tallaght University Hospital, Dublin, Ireland.,Vascular Neurology Research Foundation, C/O Department of Neurology, AMNCH/Tallaght University Hospital, Dublin, Ireland.,Department of Clinical Neurosciences, Royal Free Campus, UCL Institute of Neurology, London, United Kingdom.,Irish Centre for Vascular Biology, Dublin, Ireland.,Academic Unit of Neurology, School of Medicine, Trinity College Dublin, Dublin, Ireland
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9
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Murphy SJX, Naylor AR, Ricco JB, Sillesen H, Kakkos S, Halliday A, de Borst GJ, Vega de Ceniga M, Hamilton G, McCabe DJH. Optimal Antiplatelet Therapy in Moderate to Severe Asymptomatic and Symptomatic Carotid Stenosis: A Comprehensive Review of the Literature. Eur J Vasc Endovasc Surg 2018; 57:199-211. [PMID: 30414802 DOI: 10.1016/j.ejvs.2018.09.018] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Accepted: 09/11/2018] [Indexed: 10/27/2022]
Abstract
OBJECTIVES Carotid stenosis patients are at risk of vascular events despite antiplatelet therapy. Data on prescribed antiplatelet regimens have not been comprehensively collated from trials to guide optimal therapy in this population. METHODS This review was conducted in line with the current Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement. Medline, Ovid, Embase, Web of Science, and Google Scholar from 1988 to 2018 were searched using the search terms "carotid stenosis", "asymptomatic", "symptomatic", "antiplatelet", and "anti-platelet" to identify randomised trials in patients with asymptomatic or symptomatic extracranial moderate-severe carotid stenosis on any form of antiplatelet therapy in which vascular events and pre specified composite outcome events were reported. RESULTS Twenty-five studies were judged eligible for inclusion. Data from one randomised controlled trial showed no significant difference in benefit with aspirin versus placebo in asymptomatic carotid stenosis, but it is still reasonable to recommend aspirin (81-325 mg daily) for prevention of vascular events in these patients. Low to medium dose aspirin (81-325 mg daily) is superior to higher doses (>650 mg daily) at preventing recurrent vascular events in patients undergoing endarterectomy. Data from endovascular treatment (EVT) trials support peri-procedural treatment of asymptomatic and symptomatic patients with 81-325 mg of aspirin daily. The use of peri-procedural aspirin-clopidogrel in patients undergoing EVT is based on one pilot trial, but appears safe. Short-term aspirin-dipyridamole or aspirin-clopidogrel treatments are equally effective at reducing micro-embolic signals on transcranial Doppler ultrasound in patients with ≥50% symptomatic carotid stenosis. There is insufficient evidence to recommend routine aspirin-clopidogrel combination therapy to reduce the risk of recurrent clinical ischaemic events in patients with symptomatic moderate-severe carotid stenosis. CONCLUSIONS This comprehensive review outlines an evidence based approach to antiplatelet therapy in carotid stenosis patients. Future trials should randomise such patients to receive different antiplatelet regimens to assess their efficacy and safety and to optimise peri-procedural and long-term preventive treatment in this patient cohort.
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Affiliation(s)
- Stephen J X Murphy
- Department of Neurology, The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH)/Tallaght University Hospital, Dublin, Ireland; Stroke Service, The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH)/Tallaght University Hospital, Dublin, Ireland
| | - A Ross Naylor
- Department of Vascular Surgery, Glenfield Hospital, Leicester, UK
| | - Jean-Baptiste Ricco
- Department of Vascular Surgery, University of Strasbourg, Strasbourg, France
| | - Henrik Sillesen
- Department of Vascular Surgery, Rigshospitalet, University of Copenhagen, Denmark
| | - Stavros Kakkos
- Department of Vascular Surgery, University of Patras Medical School, Patras, Greece
| | - Alison Halliday
- Nuffield Dept. of Surgical Sciences, University of Oxford, Oxford, UK
| | - Gert J de Borst
- Department of Vascular Surgery, University Medical Centre Utrecht, The Netherlands
| | - Melina Vega de Ceniga
- Department of Angiology and Vascular Surgery, Hospital de Galdakao-Usansolo, Bizkaia, Spain
| | - George Hamilton
- Department of Vascular Surgery, Royal Free London NHS Foundation Trust, University College London Medical School, London, UK
| | - Dominick J H McCabe
- Vascular Neurology Research Foundation, The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH)/Tallaght University Hospital, Dublin, Ireland; Department of Neurology, The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH)/Tallaght University Hospital, Dublin, Ireland; Stroke Service, The Adelaide and Meath Hospital, Dublin, incorporating the National Children's Hospital (AMNCH)/Tallaght University Hospital, Dublin, Ireland; Department of Clinical Neurosciences, Royal Free Campus, UCL Institute of Neurology, London, UK; Irish Centre for Vascular Biology, Dublin, Ireland; Academic Unit of Neurology, School of Medicine, Trinity College Dublin, Ireland.
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Lim ST, Coughlan CA, Murphy SJX, Fernandez-Cadenas I, Montaner J, Thijs V, Marquardt L, McCabe DJH. Platelet function testing in transient ischaemic attack and ischaemic stroke: A comprehensive systematic review of the literature. Platelets 2015; 26:402-12. [DOI: 10.3109/09537104.2015.1049139] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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