Shared Flashcard Set

Details

Vestibular vertigo
Vestibular vertigo
8
Medical
Professional
05/18/2008

Additional Medical Flashcards

 


 

Cards

Term
Dizziness history
Definition

Clarify the meaning of "dizziness"

Episodic vs. continuous

Duration

Position triggered (head or body)

Assoc. inner ear symptoms

Assoc. neurological symptoms

Term
Three most common peripheral vestibular disorders
Definition

Benign paroxysmal positional vertigo (BPPV)

Vestibular neuritis

Endolymphatic hydrops (Meniere's dx)

Term

BPPV - clinical syndrome

Definition

- Brief episodes of vertigo (5-10 s) when head is moved in the plane of the canal

- Vertigo stops when head is still

- Verticl worse when pt recumbent

- No hearing loss, neuro sx

- Normal gait

Term
BPPV - risk factors
Definition

- 50+ years

- Head trauma

- Prior inner ear injury

- Prolonged recumbency

- Migraine w/ aura

Term

Peripheral nystagmus

 

Vs.

 

Central nystagmus

 

5

Definition

Unidirectional - in the plane of the canal (multi)

Mixed nystagmus (not compatible w/ struct)

Inhibit with visual fixation (not inhibited)

Normal ocular control (abnormal: ex. smooth)

Normal neurological exam (abnormal)

Term

Endolymphatic hydrops - Tx

 

3 medical, 4 surgical

Definition

Medical:

Diuretic (Dyazide, HCTZ, ACTZ), Salt restriction, <2g day, Stress reduction

 

Surgical: labyrinthectomy, vestibular nerve section, intratympanic gentamycin injection, endolymphatic shunt 

Term
Vestibular neuritis - Dx
Definition

1. Clinical history of isolated prolonged vertigo lasting days with gradual improvement

 

2 .Vestibular function testing showing caloric paresis

 

3. Positive head thrust test showing delayed correction of eye movement for head movement

Term
Endolymphatic hydrops - Dx
Definition

At least two episodes of vertigo > 20 mins

 

Audiometrically confirmed low freq hearing loss

 

Tinnitus or fullness

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