Stroke Etiology Modifies the Effect of Endovascular Treatment in Acute Stroke

Stroke. 2020 Mar;51(3):1014-1016. doi: 10.1161/STROKEAHA.119.028383. Epub 2019 Dec 18.


Background and Purpose- Stroke etiology drives thrombus composition. We thus hypothesized that endovascular treatment shows different efficacy in cardioembolic versus noncardioembolic large-vessel occlusions (LVOs). Methods- Procedural characteristics, grade of reperfusion, and functional outcome at discharge and 90 days were compared between patients with cardioembolic versus noncardioembolic LVO from the GSR-ET (German Stroke Registry-Endovascular Treatment; n=2589). To determine associations with functional outcome, adjusted odds ratios and 95% CIs were calculated using ordinal multivariable logistic regression models adjusting for potential baseline confounder variables. Results- Endovascular treatment of cardioembolic LVO had a higher rate of successful reperfusion (85.6% versus 81.0%; P=0.002) and a higher rate of complete reperfusion after a single thrombectomy pass (45.7% versus 38.1%; P<0.001) compared with noncardioembolic LVO. Cardioembolic LVO was associated with better functional outcome at discharge (adjusted odds ratio, 1.61 [95% CI, 1.37-1.88]) and 90 days (adjusted odds ratio, 1.29 [95% CI, 1.09-1.53]). In mediation analysis, reperfusion explained 47% of the effect of etiology on functional outcome at discharge. Conclusions- These results provide evidence for higher efficacy of endovascular treatment in cardioembolic LVO compared with noncardioembolic LVO.

Keywords: humans; odds ratio; registries; stroke; thrombectomy.

Publication types

  • Clinical Trial
  • Multicenter Study

MeSH terms

  • Aged
  • Aged, 80 and over
  • Endovascular Procedures*
  • Female
  • Humans
  • Intracranial Embolism / epidemiology
  • Intracranial Embolism / surgery*
  • Male
  • Middle Aged
  • Registries*
  • Stroke / epidemiology
  • Stroke / surgery*
  • Thrombectomy*