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 Mov’t 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.