Neuro Flashcards
What is Vertigo?
Spinning sensation of movement
Explain Peripheral Vertigo
What can we use to diagnose and treat for BPPV?
- Dix Hallpike to diagnose
- Treated with Epleys
Explain Central Vertigo
Originates in CNS (Brainstem or cerebellum)
- Not specifically triggered by head movement or positions
Associated with:
- Headache
- Diplopia
- Limb weakness
- Nystagmus
- Delay in nystagmus of vertigo in dix hallpike (2-5 seconds)
- Horizontal or rotary nystagmus but also vertical
- Nystagmus can change direction
Vertebral artery insufficiency - Pathophysiology
Compression or obstruction of one or both vertebral arteries, usually due to atherosclerosis, neck trauma, or vertebral bone spurs.
The reduced blood flow can cause transient or permanent neurologic deficits,
including dizziness, vertigo, headaches, visual changes, weakness, numbness, or difficulty speaking or swallowing
Vertebral artery insufficiency - Demographics/Riskfactor?
Any age
Usually older adults
- Hypertension
- Diabetes
- History of smoking
The classic cardinal signs of VAI are…
“5D’s 3N’s”
- Drop attacks
- Dizziness
- Dysphasia
- Dysarthria
- Diplopia
- Nystagmus
- Nausea
- Numbness
Positive Cranial Nerve
Meralgia Parasthetica Pathophysiology?
- Compression of lateral femoral cutaneous nerve
- As it passes through the inguinal ligament
- Sensory disturbances in the outer though
Meralgia Parasthetica demographics?
Adults
Overweight
Meralgia Parasthetica Signs and symptoms?
Sensory:
Numbness, tingling, burning, pain outer thigh
- Unilateral
Sensation worsens in prolonged:
- Standing
- Walking
- Activity
Hypersensitivity:
- Touch and pressure
Motor:
- Very RARE
- Weakness/atrophy in the thigh
Multiple Sclerosis - Overview/demographic
The most common disabling neurological disease of young adults
- 20 to 40 years(Can occur at any age)
- Women 3:1
Multiple Sclerosis - Pathophysiology?
The immune system attacks and damages myelin, leading to inflammation and scarring. This disrupts communication between the brain, spinal cord, and the rest of the body
MS - Signs and Symptoms?
Sensory disturbances (numbness, tingling and burning)
Motor:
- Weakness
- Spasticity
- Difficulty with coordination and balance
Visual:
- Optic neuritis
- Fatigue
Types of MS?
Types of MS
- Relapsing-remitting MS (RRMS)
Periods of relapses followed by partial or complete recovery
- Secondary progressive MS (SPMS)
Gradual worsening of symptoms following initial relapsing-remitting phase
- Primary progressive MS (PPMS)
Steady progression, NO relapse or remissions
Progressive-relapsing MS (PRMS)
Steady progression, occasional relapses
Comparison between MS and Meralgia Parasthetica
- Meralgia parasthetica specifically outer thigh
- MS is more widespread and varied
Motor disturbances
- Mainly MS
* Spasticity
* Weakness
* Coordination
Both sensory disturbances
What is Myasthenia Gravis
Myasthenia gravis is a chronic autoimmune disorder that affects the neuromuscular junction, causing muscle weakness and fatigue.
Myasthenia Gravis - Pathophysiology
The body’s immune system attacks the acetylcholine receptors on the muscle cells, which prevents the neurotransmitter acetylcholine from effectively communicating with the muscles. This leads to muscle weakness, especially in the eyes, face, throat, and limbs.
Myasthenia Gravis - Demographics?
- Women under 40
- Men over 60
- 14-20 per 100,000