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Oral clopidogrel load in aspirin-resistant capsular warning syndrome

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Abstract

Introduction: Capsular warning syndrome (CWS) carries a significant risk of permanent stroke. There are no proven therapies for preventing completed stroke in this unstable situation.

Methods: Clinical observation in two patients with aspirin-resistant CWS treated with a loading dose of oral clopidogrel.

Results: Both patients had excellent neurological outcome, although one sustained an asymptomatic brain infarction.

Conclusion: High-dose oral clopidogrel plus aspirin merits formal evaluation in high-risk transient brain ischemia such as CWS, preferably in a randomized trial compared to aspirin alone.

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References

  1. Donnan GA, O’Malley HM, Quang L, Hurley S, Bladin PF. The capsular warning syndrome. Pathogenesis and clinical features. Neurology 1993;43:957–962.

    PubMed  CAS  Google Scholar 

  2. Staaf G, Geijer B, Lindgren A, Norrving B. Diffusion-weighted MRI findings in patients with capsular warning syndrome. Cerebrovasc Dis 2004;17:1–8.

    Article  PubMed  Google Scholar 

  3. Benito-León J, Alvarez-Linerá J, Porta-Etessam J. Detection of acute pontine infarction by diffusion-weighted MRI in capsular warning syndrome. Cerebrovasc Dis 2001;11:350,351.

    Article  PubMed  Google Scholar 

  4. Farrar J, Donnan GA. Capsular warning syndrome preceding pontine infarction. Stroke 1993;24:762.

    PubMed  CAS  Google Scholar 

  5. Donnan GA, O’Malley HM, Quang L, Hurley S. The Capsular warning syndrome: The high risk of early stroke. Cerebrovasc Dis 1996;6:202–207.

    Google Scholar 

  6. Dobkin BH. Heparin for lacunar stroke in progression. Stroke 1983;14:421–423.

    PubMed  CAS  Google Scholar 

  7. Lalive PH, Mayor I, Sztajzel R. The role of blood pressure in lacunar strokes preceded by TIAs. Cerebrovasc Dis 2003;16:88–90.

    Article  PubMed  CAS  Google Scholar 

  8. CAPRIE Steering Committee. A randomised, blinded, trial of clopidogrel versus aspirin in patients at risk of ischaemic events (CAPRIE). Lancet 1996;348:1329–1339.

    Article  Google Scholar 

  9. Yusuf S, Zhao F, Mehta SR, et al. Effects of clopidogrel in addition to aspirin in patients with acute coronary syndromes without ST-segment elevation. N Engl J Med 2001;345:494–502.

    Article  PubMed  CAS  Google Scholar 

  10. Savcic M, Hauert J, Bachmann F. Clopidogrel loading dose regimens: kinetic profile of pharmacodynamic response in healthy subjects. Semin Thromb Hemost 1999;25:15–19.

    PubMed  CAS  Google Scholar 

  11. Thebault JJ, Kieffer G, Cariou R. Single-dose pharmacodynamics of clopidogrel. Semin Thromb Hemost 1999;25:3–8.

    PubMed  CAS  Google Scholar 

  12. Frey J. Capsular warning syndrome. Neurology 1994;44(1):195,196.

    PubMed  CAS  Google Scholar 

  13. Batista P, Soares F, Oliveira V, Ferro JM. No evidence for microembolism in clustering transient ischemic attacks. Cerebrovasc Dis 2002;14(3–4)260.

    Article  PubMed  CAS  Google Scholar 

  14. Terai S, Hori T, Miake S, Tamaki K, Saishoji A. Mechanism in progressive lacunar infarction: a case report with magnetic resonance imaging. Arch Neurol 2000;57:255–258.

    Article  PubMed  CAS  Google Scholar 

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Correspondence to Richard A. Bernstein.

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Fahey, C.D., Alberts, M.J. & Bernstein, R.A. Oral clopidogrel load in aspirin-resistant capsular warning syndrome. Neurocrit Care 2, 183–184 (2005). https://doi.org/10.1385/NCC:2:2:183

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