TAC - Total Anterior Circulation
ALL of:

  • Higher Dysfunction
  • Dysphasia
  • Visuospatial (neglect/inattention)
  • Homonymous Hemianopia
  • Motor/Sensory
  • FACE/ARM/LEG - 2/3

*epidemiological data suggest 1 year mortality to be 60%, with 36% of those surviving being functionally dependant.

PAC - Partial Anterior Circulation
Either:

  • 2/3rds of a TAC
  • Higher Dysfunction
  • Hemianopia
  • Motor/Sensory >2/3 FACE/ARM/LEG
  • Higher Dysfunction Alone
  • Pure motor or sensory (LESS extensive than LAC)
  • New Higher Dysfunction

*epidemiological data suggest 1 year mortality to be 16%, with 29% of those surviving being functionally dependent.

LAC - Lacunar

  • Pure Motor: >2/3 FACE/ARM/LEG (Internal capsule, pons, corona radiata)
  • Pure Sensory: >2/3 FACE/ARM/LEG (thalamic)
  • Sensory Motor: >2/3 FACE/ARM/LEG
  • Ataxic Hemiparesis
  • Cerebellar with ipsilateral Long Tract Signs
  • (NO dysphasia/visuospatial/vertebrobasilar)

*epidemiological data suggest 1 year mortality to be 11%, with 28% of those surviving being functionally dependent.

POC - Posterior Circulation
Any of:

  • Ipsilat CN palsy AND contralateral motor/sensory
  • Bilat Motor OR Sensory Deficit
  • Conjugate Eye Movít Problems
  • Cerebellar Dysfunction WITHOUT ipsilateral
  • Long Tract Signs
  • Isolated Homonymous Hemianopia or cortical blindness

*epidemiological data suggest 1 year mortality to be 19%, with 19% of those surviving being functionally dependant.