Endovascular thrombectomy is beneficial for functional nonagenarians – a multicenter cohort analysis

Ofer Rotschild, Asaf Honig, Hen Hallevi, Anat Horev, Estelle Seyman, Einor Ben-Assayag, Tali Jonas-Kimchi, Udi Sadeh, Jose Cohen, Ronen R. Leker, Jeremy Molad*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Introduction: The use of endovascular thrombectomy (EVT) has dramatically increased in recent years. However, most existing studies used an upper age limit of 80 and data regarding the safety and efficacy of EVT among nonagenarians is still lacking. Methods: 767 consecutive patients undergoing EVT for large vessel occlusion (LVO) in three participating centers were recruited into a prospective ongoing database. Demographic, clinical and imaging characteristics were documented. Statistical analysis was done to evaluate EVT outcome among nonagenarians compared to younger patients. Results: The current analysis included 41 (5.4%) patients older than 90 years. Compared to younger patients, nonagenarians were more often female (78% versus 50.3%, p ≤ 0.001), had worse baseline mRS scores (2 [0–3] versus 0 [0–2], p < 0.001), higher rates of hypertension and hyperlipidemia and a higher admission NIHSS (20 [14–23] versus 16 [11–20], p < 0.001). No differences were found between groups regarding the involved vessel, stroke etiology, time from symptoms to door or symptoms to EVT, successful recanalization rates and hemorrhagic transformation rates. Nonagenarians had worse mRS at 90 days (5 [3–6] versus 3 [2–5], p = 0.001), similar discharge NIHSS (5 [1–11] versus 4 [1–11], p = 0.78) and higher mortality rates (36.6% versus 15.8%, p < 0.001). All nonagenarians with baseline mRS 4 have died within 90 days. 36.4% of nonagenarian patients with baseline MRS of 3 or less had favorable outcome. Discussion: This study demonstrates that nonagenarian stroke patients with baseline mRS of 3 or less benefit from EVT with no significant difference in the rate of favorable outcome compared to octogenarians.

Original languageEnglish
Article number106699
JournalJournal of Stroke and Cerebrovascular Diseases
Issue number10
StatePublished - Oct 2022


  • Endovascular thrombectomy
  • Ischemic stroke
  • Mechanical thrombectomy
  • Nonagenarians


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