Guillian Barre Syndrome Flashcards
What is Guillian Barre Syndrome
Acute paralytic polyneuropathy that affects the peripheral nervous system
Causes acute, symmetrical, ascending weakness and can also cause sensory symptoms
What triggers Guillian Barre virus
Campylobacter jejuni
Cytomegalovirus
Epstein Barr virus
Ascending paralysis
Paralysis that gradually moves from the lower part of the body towards the upper part
Pathophysiology of Guillian Barre Syndrome
Molecular mimicry
B cells make antibodies against pathogenic antigens which are similar to those of nerve cells therefore also damaging nerve cells
May target proteins on the myelin sheath
Presentation of Guillian Barre Syndrome
- Symmetrical ascending weakness
- Hyporeflexia
- Peripheral loss of sensation or neuropathic pain
- may progress to cranial nerves and cause facial weakness
Clinical course of Guillian Barre Syndrome
Symptoms usually present within 4 weeks of an infection
Usually start in feet and progress upward
Symptoms peak within 2 - 4 weeks
Recovery can take months to years
How to diagnose Guillian Barre Syndrome
Brighton Criteria or clinically
Investigations for Guillian Barre Syndrome
Nerve conduction studies
Lumbar puncture for CSF - raised protein with normal cell count and glucose
Management of Guillian Barre Syndrome
IV immunoglobulins
Plasma exchange
Supportive care
VTE prophylaxis
If respiratory failure - ventilation and intubation
Prognosis of Guillian Barre Syndrome
80% recover
15% some neurological instability
5% death