Facial nerve
1
,Mixed nerve: motor, sensory & autonomic.
Lesion: UMNL (supranuclear), LMNL (nuclear & infranuclear)
UMNL: lower ½ of face on opp side of lesion + spared extra Δ
LMNL: All face on same side of lesion + affected extra Δ
Bell’s palsy & iatrogenic are the most common 2 causes of LMNL
Facial nerve damage causes paralysis of the whole side of the face
2
,STROKE
3
, • ACUTE brain injury due to VASCULAR problem
• Ischemic stroke (85 %), Hemorrhagic stroke (15 %)
• Thrombosis on top of athero is the most common cause
• HTN & age are the most important 2 risk factors
• Hemi & aphasia are the most common 2 clinical features
• 2 clinical types: evolving stroke & completed stroke
• DD: Acute causes of hemiplegia (trauma, infect., MS)
• Brain imaging: is the most important invesQgaQon
• TTT: depends on the cause
Type of pa>ent
Male, old, hypertensive ± other risk factors 4
1
,Mixed nerve: motor, sensory & autonomic.
Lesion: UMNL (supranuclear), LMNL (nuclear & infranuclear)
UMNL: lower ½ of face on opp side of lesion + spared extra Δ
LMNL: All face on same side of lesion + affected extra Δ
Bell’s palsy & iatrogenic are the most common 2 causes of LMNL
Facial nerve damage causes paralysis of the whole side of the face
2
,STROKE
3
, • ACUTE brain injury due to VASCULAR problem
• Ischemic stroke (85 %), Hemorrhagic stroke (15 %)
• Thrombosis on top of athero is the most common cause
• HTN & age are the most important 2 risk factors
• Hemi & aphasia are the most common 2 clinical features
• 2 clinical types: evolving stroke & completed stroke
• DD: Acute causes of hemiplegia (trauma, infect., MS)
• Brain imaging: is the most important invesQgaQon
• TTT: depends on the cause
Type of pa>ent
Male, old, hypertensive ± other risk factors 4
