Endovascular Treatment Decision Making in Octogenarians and Nonagenarians: Insights from UNMASK EVT an International Multidisciplinary Study

Johanna Maria Ospel, Nima Kashani N, Bijoy Menon, Mohammed Almekhlafi, Alexis Wilson, Urs Fischer, Bruce Campbell, Shinichi Yoshimura, Francis Turjman, Mathew Cherian, Ji Hoe Heo, Michael Hill, Gustavo Saposnik, Mayank Goyal

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3 Citations (Scopus)


Background: Evidence for efficacy and safety in stroke patients ≥80 years is limited, since they were underrepresented in randomized thrombectomy trials. This study sought to explore how physicians approach endovascular therapy (EVT) decision making in octogenarians and nonagenarians under their current local resources under assumed ideal conditions, i.e. without external (monetary or infrastructural) limitations. Methods: In an international multidisciplinary survey, 607 physicians involved in acute stroke care were randomly assigned 10 out of a pool of 22 case scenarios with different evidence levels for EVT, 4 of which involved octogenarians and 2 nonagenarians, and asked how they would treat the patient in the given scenario A) under their current local resources and B) under assumed ideal conditions, i.e. with no external restraints. Decision rates were calculated and clustered multivariable regression analysis performed to determine adjusted measures of effect size for patient age. Results: In octogenarians, physicians decided in favor of EVT in 76.7% (all of which were level 2B evidence scenarios) under current local resources and in 80.2% under assumed ideal conditions. In nonagenarians, 74.0% decided in favor of EVT under current local resources (level 1A scenarios: 87.7%, level 2B scenarios: 60.3%) and 79.2% would offer EVT under assumed ideal conditions (level 1A scenarios: 91.3%, level 2B scenarios: 67.2%). Age was not a significant predictor for treatment decision under current local resources (adjusted odds ratio, OR: 0.99, confidence interval, CI: 0.96–1.02 per decile increase) and under assumed ideal conditions (adjusted OR: 1.00, CI 0.97–1.03 per decile increase). Conclusion: The vast majority of physicians participating in this survey would offer EVT to acute ischemic stroke patients above 80 years.

Original languageEnglish
Pages (from-to)45-50
Number of pages6
JournalClinical Neuroradiology
Issue number1
Publication statusPublished - 2020 Mar 1

Bibliographical note

Funding Information:
The study was funded by Stryker through an unrestricted research grant to the University of Calgary. The company was not involved in the design, execution, analysis, and interpretation or reporting of the results.

Funding Information:
J.M. Ospel is supported by the University of Basel Research Foundation, the Julia Bangerter Rhyner Foundation and the “Freiwillige Akademische Gesellschaft Basel” Foundation. U. Fischer is a consultant for Medtronic, Stryker and CSL Behring and Co-Principal Investigator of SWIFT-DIRECT, a randomized controlled endovascular stroke treatment trial (Medtronic). F. Turjman works as a consultant for Balt and Stryker. G. Saposnik is supported by the Heart and Stroke Foundation of Canada Career Award. M. Goyal is a consultant for Medtronic, Stryker, Microvention, GE Healthcare, Mentice. N. Kashani N, B. Menon, M. Almekhlafi, A. Wilson, B. Campbell, S. Yoshimura, M. Cherian, J.-H. Heo and M. Hill declare that they have no competing interests.

Publisher Copyright:
© 2019, Springer-Verlag GmbH Germany, part of Springer Nature.

All Science Journal Classification (ASJC) codes

  • Radiology Nuclear Medicine and imaging
  • Clinical Neurology


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