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Activated Protein C Resistance Does Not Increase Risk for Recurrent Stroke or Death in Stroke Patients

Author

Listed:
  • Markus Alexander Thaler
  • Regina Feurer
  • Christoph Thaler
  • Natalie Sonntag
  • Michael Schleef
  • Ina-Christine Rondak
  • Holger Poppert

Abstract

Background: Activated protein C (APC) resistance is the most common inherited prothrombotic disorder. The role of APC resistance in ischemic stroke is controversially discussed. Objectives: The aim of this single center follow up study was to investigate the effect of APC resistance on stroke recurrence and survival in stroke patients. Patients/Methods: We retrospectively identified 966 patients who had had an ischemic stroke or transitory ischemic attack (TIA) and in whom laboratory tests for APC resistance had been conducted. These patients were contacted to determine the primary outcomes of recurrent ischemic stroke or death. Results: A total of 858 patients with an average follow up time of 8.48 years were included. APC resistance did not influence cumulative incidence functions for stroke free and total survival. In multivariate analyses, crude and adjusted hazard ratios for recurrent stroke as well as for death where not significantly increased in patients with APC resistance. This also applies to the subgroups of young patients, patients with cryptogenic stroke and patients with atrial fibrillation. Conclusion: APC-resistance is not a risk factor for subsequent stroke or death in patients with a first ischemic stroke or TIA. Testing for APC-resistance in stroke patients therefore cannot be routinely recommended.

Suggested Citation

  • Markus Alexander Thaler & Regina Feurer & Christoph Thaler & Natalie Sonntag & Michael Schleef & Ina-Christine Rondak & Holger Poppert, 2016. "Activated Protein C Resistance Does Not Increase Risk for Recurrent Stroke or Death in Stroke Patients," PLOS ONE, Public Library of Science, vol. 11(8), pages 1-13, August.
    • Handle: RePEc:plo:pone00:0160382
    DOI: 10.1371/journal.pone.0160382
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