18 Vertebrobasilar Stroke

---

typora-copy-images-to: ./images

• vertebral artery off from subclavian artery
• supply brainstem

Rare Stroke Syndromes

SCA

• Ipsilateral ataxia: won't be able to flip hands back and forth, touch nose

Basilar

• both sides of body, arms, legs, face
• can feel and see world but can't respond
• vegetative: can't process world around. Motor intact

Central Pontine Myelinolysis

Top of Basilar

• Confusions, coma, eye symptoms only

Key Syndromes

AICA

Horner

• from hypothalamus to T1: cross medulla/pons
• might not say miosis but unequal pupils

PICA

• Nucleus Ambiguous unique to PICA

ASA

• bilateral paralysis below lesion, decreased sensation below lesion except for vibration/proprioception