Vertigo. Tunde Magyar MD, PhD
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1 Vertigo Tunde Magyar MD, PhD
2 What could be reffered to as dizziness by the patient? Rotational vertigo Sense of instability Ataxia of gait Disturbance of vision Loss of contact with surroundings Nausea Loss of memory Loss of confidence Epileptic convulsion
3 What should be considered dizziness by medical personnel? 1. Vertigo A sense of feeling the environment moving when it does not. Persists in all positions. Aggravated by head movement. 2. Dysequilibrium A feeling of unsteadiness or insecurity without rotation. Standing and walking are difficult. 3. Light headedness Swimming, floating, giddy or swaying sensation in the head or in the room.
4 Afferent Development of vertigo Visual Proprioceptive Vestibular CNS Efferent Dizziness Oculomotor Sceletal muscles Vegetative
5 Questions to be asked (taking the history) 1. Anamnesis What the patient means by vertigo Time of onset Temporal pattern Associated sings and symptoms (tinnitus, hearing loss, headache, double vision, numbness, difficulty of swallowing) Precipitating, aggravating and relieving factors If episodic: sequence of events, activity at onset, aura, severity, amnesia etc.
6 Examination of the patient with vertigo 2. Physical examination Spontaneous nystagmus Positional nystagmus Posture and balance control Romberg s test Blind walking, Untenberger Bárány s test Stimulations of labyrinth Caloric test (cold, warm water) Rotational test
7 In case of vertigo No sponteous nystagmus Posture and balance control negative Sponteous nystagmus Posture and balance control positive Nausea vomiting Sweating, tachycardia Nausea, vomiting, sweating, anxiety GI disorder Chest pain Anxiety Harmonic vestibular sy Dysharmonic vestibular sy Internal medicine Angina, MI Loss of hearing, tinnitus Numbness, double vision, dysarthria Cardiology Psychiatry Vestibular neuronitis, Meniére disease Brainstem infarct Otology Neurology
8 Differentiating peripheral and central vestibular lesion 1. Peripheral harmonic vestibular syndrome Falls in Romberg position and deviates during walking with closed eyes to the side of the slow component of nystagmus Direction of nystagmus does not change with direction of gaze (I. II. III. degree!) Nystagmus can be horizontal, or rotational, but never vertical Nystagmus occurs after a brief latent period Severe rotating, whirling vertigo Symptoms aggravate after moving of the head position Severe vegetative sings (vomiting, sweating) Fear of death in severe cases Caloric response decreased on side of lesion
9 Differentiating peripheral and central vestibular lesion 2. Central dysharmonic vestibular syndrome (rarely harmonic!!) Falls in Romberg position and deviates during walking with closed eyes to the side of the fast component of nystagmus Direction of nystagmus might change with direction of gaze If nystagmus is vertical or dissociated, it cannot be peripheral Vertigo is usually not whirling Vegetativ signs are less severe if any Associated neurological signs: diplopia, dysarthria, dysphagia, numbness, paresis, ataxia.
10 Examination of the patient with vertigo 3. Laboratory examinations and imaging Electronystagmography Video-oculography Audiometry BAEP CT MRI
11 Common causes of vertigo 1. Peripheral Physiological (motion sickness) Benign paroxysmal positional vertigo Vestibular neuronitis Labyrinthitis Meniére disease Perilymph fistula 2. Central Brainstem TIA/infarct Posterior fossa tumors Multiple sclerosis Syringobulbia Arnold - Chiari deformity Temporal lobe epilepsy Basilar migraine 3. Other Cardiac, GI, psycogen, toxins, medications, anemia, hypotension
12 Duration of vertigo Time Seconds Minutes (Half) hours Days Weeks, Month Peripheral BPPV perilymph fistula Meniére disease vestibular neuronitis labyrinthitis acustic neurinoma, drug toxicity Central VB-TIA, aura of epilepsy VB-TIA, aura of migraine basilar migraine VB stroke multiple sclerosis cerebellar degenerations
13 Peripheral types of vertigo 1. Benign paroxysmal positional vertigo Most often Lasts less than 30 seconds Occurs only with a change in head position Nystagmus is transient, fatigable and its direction is constant Reason: otoconia Positional vertigo is not always benign and not always vestibular in origin!
14 Left AC Right AC - HC HC + PC PC
15 2. Vestibular neuronitis Sudden severe vertigo harmonic vestibular syndrome No cochlear symptoms (tinnitus, hearing loss) Reduced caloric reaction on affected side Recurrent attacks Lasts for several days
16 2. Vestibular neuronitis Reason: viral infection, vascular or unknown origin Therapy: 1-3. days. bedrest, vestibular suppressants (diazepam, clonazepam) antiemetics, vitamin B antiviral agents (?), corticosteriods(?) From 3. day: position training 3. Labyrinthitis As vestibular neuronitis, but there are also cochlear symptoms.
17 4. Menière disease Recurrent attacks in clusters Tinnitus Progressive hearing loss, unilateral first Vertigo for at least 5 to 30 min Vegetative signs Sense of pressure in the ear Distorsion of sounds Sensitivity to noises
18 4. Menière disease Pathogenesis: endolymphatic hydrops Therapy: salt free diet, nicotin, alcoholwithdrawal, acetazolamide, betahistine
19 5. Perilymphatic fistula Fistula of the round window Hearing loss with or without vertigo Sudden changes of pressure in the middle ear (weight lifting, diving, nose blowing)
20 7. Drug toxicity Aminoglycoside antibiotics Anticonvulsants Salycilates Alcohol Sedatives Antihistamines Antidepressants
21 Central types of vertigo
22 Other causes of vertigo Cervical spondylosis Sensory deprivation (neuropathy, visual impairment) Anemia Hypoglycaemia Orthostatic hypotension Hyperventilation
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