International neurointerventional societies outline new criteria for facilities that treat stroke



A stroke patient

Thirteen neurointerventional societies have released new guidelines outlining the criteria for Level 1, 2 and 3 stroke centres that provide acute ischemic stroke interventions (ASISs) to stroke patients. The standards are published in the September issue of the Journal of NeuroInterventional Surgery.

Acute ischemic stroke caused by emergent large vessel occlusion (ELVO) is the leading cause of adult disability in the world. Recent studies have shown that neuroendovascular stroke surgery significantly improves outcomes in ELVO patients, especially if the patient receives the surgery in a timely fashion. To ensure positive patient outcomes, it is critical to ensure that facilities can provide the proper care to stroke patients in a safe and timely manner.

For the first time, the societies have specified criteria for Level 1, 2 and 3 stroke centres—terminology they believe will help health providers and the public better understand the capabilities of stroke treatment facilities. Level 1 centres need to offer the full spectrum of neuroendovascular services, including neuroendovascular stroke surgery. In addition to other requirements, these centres need to treat a minimum of 250 stroke patients per year and perform a minimum of 50 thrombectomies per year.

“ELVO patients should be taken to Level 1 stroke centres. Establishing guidelines for Level 2 stroke centres gives patients a chance at the best possible outcome in underserved regions,” says Adam Arthur, president of the Society of NeuroInterventional Surgery (SNIS), and a neurointerventionalist at the Semmes-Murphey Clinic in Memphis, USA. “These guidelines, issued by this eminent group of organisations, will help facilities around the world maintain the highest standard of care for stroke patients.”

The guidelines recommend that Level 2 stroke centres see a minimum of 100 stroke patients per year and perform a minimum of 50 thrombectomies per year. Each neurointerventionalist in a Level 2 centre should perform a minimum of 15 acute intracranial thrombectomies per year.

The guidelines recognise the challenges that newly created Level 2 stroke centres could face in meeting the minimum volume criteria for procedures. They allow for these centres to operate below the minimum threshold numbers as long as they expect to hit their volumes within 12 to 24 months.

The purpose of these guidelines is not to serve as a substitute for existing national and regional guidelines, but rather to outline the best recommendations based on expert opinions and the most current evidence available in stroke care around the world.

The following societies contributed to the development of these guidelines:

  • Asian-Australian Federation of Interventional and Therapeutic Neuroradiology (AAFITN)
  • Australian and New Zealand Society of Neuroradiology (ANZSNR)
  • American Society of Neuroradiology (ASNR)
  • Canadian Society of Neuroradiology (CSNR)
  • European Society of Minimally Invasive Neurological Therapy (ESMINT)
  • European Society of Neuroradiology (ESNR)
  • European Stroke Organisation (ESO)
  • Japanese Society for NeuroEndovascular Therapy (JSNET)
  • Ibero-Latin American Society of Diagnostic and Therapeutic Neuroradiology (SILAN)
  • Society of NeuroInterventional Surgery (SNIS)
  • Society of Vascular and Interventional Neurology (SVIN)
  • World Stroke Organization (WSO)
  • World Federation of Interventional and Therapeutic Neuroradiology (WFITN)


Please enter your comment!
Please enter your name here