Dizziness
Questionnaire/history:
Vertigo?
- Abnormal sensation of movement of the surrounding or other person(s)?
- Spinning?
- Tilting?
- Moving sideways;
(Note: most cases in primary care due to peripheral vestibular disorder (like BPPV, acute vestibular neuronitis, Ménière's disease))
Presyncope?
- Light-headedness/feeling faint?
- Muscular weakness?
Disequilibrium?
- Sensation of unsteadiness?
- Not localised to the head?
- Occurring when walking and relieved with rest?
(Note: most common cause 'multiple sensory deficits' (i.e. vestibular, visual and proprioceptive)?
Nonspecific dizziness?
- Without specific features of vertigo, disequilibrium or presyncope)?
Time of symptoms?
- Onset?
- Duration?
- Frequency?
Constant or episodic?
Spontaneous or triggered?
- By movement?
- Specific events?
- Medication?
Severity and effect on daily activities?
- Walking?
Acute intoxication with alcohol?
Associated symptoms?
- Nausea and vomiting?
- Hyperventilation?
- Otological?
- Feeling of fullness in the ear?
- Hearing loss?
- Ear discharge?
- Tinnitus?
- Neurological?
- Headache?
- Diplopia?
- Visual disturbance?
- Dysarthria?
- Dysphagia?
- Paraesthesia?
- Muscle weakness?
- Ataxia?
- Migraine aura?
- Other?
Past medical history?
Family history (eg migraine, Ménière's disease)?
Current medications?
Drug allergies?
Dizziness episodic and triggered?
- Postural hypotension
- BPPV
Dizziness episodic and not triggered?
- Ménière's disease
- Vestibular migraine
- Anxiety attacks
Dizziness persistent and not triggered?
- Acute vestibular syndrome (AVS): acute onset of persistent dizziness + nausea or vomiting, gait instability, nystagmus and head-motion intolerance lasting days to weeks)
------ Vestibular neuronitis
------ Labyrinthitis (dizziness plus hearing loss or tinnitus)
------- Posterior circulation ischaemic stroke (generally in the cerebellum or brainstem)
Examination:
BP (sitting or supine)?
BP (standing)?
Pulse?
Heart?
Carotid bruits?
Ears?
Eyes?
- Vision?
- Nystagmus?
- Fundoscopy?
Facial asymmetry?
Cranial nerves?
Signs of peripheral neuropathy?
Cerebellar function (eg heel to toe walking)?
- If abnormal:
----- Reflexes?
----- Tone in lower extremities?
----- Babinski reflex?
Coordination (put the opposite heel on the knee and run the foot down and up the shin)?
Unaided stand?
Specific tests:
Romberg's test (if positive problem with proprioception or vestibular functions)?
Dix-Hallpike test (if positional vertigo affected by moving the head suggestive of BPPV)?
Three-component bedside oculomotor examination HINTS (horizontal head impulse test, nystagmus and test of skew) to differentiate between a central and peripheral cause of AVS?
------ Head Impulse (person sits upright and is asked to keep their gaze fixed on the examiner, the head is then burned about 20-40 degree to one side)
Normal (eyes remain fixed on the examiner)?
- Normal peripheral vestibular system
- May suggest central pathology (cerebral infarction)
Abnormal (eyes are dragged off target and correcting movement (saccade)?
- Suggestive of peripheral cause?
----- Nystagmus
Unidirectional horizontal nystagmus which worsens when gazing in the direction of the nystagmus?
- Suggestive of peripheral cause
Vertical or torsional nystagmus or nystagmus which changes direction with gaze?
- Suggestive of a central cause (centrally caused nystagmus can usually be suppressed by fixing the gaze))
------ Test of Skew (patient is asked to look straight ahead, then each eye in turn is covered and then uncovered)
- Vertical deviation/correction after uncovering?
- Suggestive of central pathology (eg brainstem stroke)
Unterberger's test (if rotation to one side suggestive labyrinthine damage on that side)?
Investigations (if applicable):
Urine dipstick?
Random blood glucose?
ECG?
Management:
According to cause
Epley manoeuvre for BPPV
Reference(s):
BMJ: Acute vertigo
NICE CKS: Vertigo
Patient UK: Dizziness, Giddiness and Feeling Faint