Safety and outcome of mechanical thrombectomy in ischaemic stroke related to carotid artery dissection

J Neurol. 2022 Feb;269(2):772-779. doi: 10.1007/s00415-021-10656-w. Epub 2021 Jun 29.


Background: The net clinical benefit of mechanical thrombectomy (MT) in patients with anterior circulation ischaemic stroke associated with large vessel occlusion (AIS-LVO) related to carotid artery dissection (CAD) is uncertain. The aim of the study was to investigate the safety and clinical outcomes of patients treated by MT for a CAD-related stroke.

Methods: We included consecutive patients with AIS-LVO treated by MT between 1st 2015 and January 1st 2020 at Lille University Hospital. We compared the safety and clinical outcomes, including successful recanalisation, defined as a modified thrombolysis in cerebral infarction (mTICI) ≥ 2b and favourable functional outcome at 3 months (defined as a modified Rankin Scale (mRS) ≤ 2 or equal to pre-stroke), in patients with CAD-related stroke versus patients with other aetiologies.

Results: We included 1422 patients, among them, 43 patients with CAD-related AIS-LVO were matched to 86 patients with other aetiologies. Procedural complications, sICH (ECASS-3 criteria) and mortality rates were similar in the two groups (OR 0.85, 95% CI 0.21-3.49, p = 0.82; OR 1.54 95% CI 0.33-2.79, p = 0.58; OR 0.18 95% CI 0.02-1.46, p = 0.11, respectively), as well as the rates of intracranial angiographic successful recanalisation and favourable functional outcome (OR 0.67 (95% CI 0.26-1.73, p = 0.41; OR 1.26 (95% CI 0.61-2.64, p = 0.53). In patients with CAD-related stroke, intracranial angiographic success after MT was significantly associated with favourable functional outcome.

Conclusions: In patients with AIS-LVO related to CAD, safety profiles and clinical outcomes after MT are similar compared to matched patients with other stroke aetiologies.

Keywords: Carotid dissection; Large vessel occlusion; Matching; Mechanical thrombectomy; Stroke.

MeSH terms

  • Brain Ischemia* / complications
  • Brain Ischemia* / therapy
  • Carotid Arteries
  • Dissection
  • Humans
  • Ischemic Stroke*
  • Retrospective Studies
  • Stroke* / complications
  • Stroke* / diagnostic imaging
  • Thrombectomy
  • Treatment Outcome