22 results
Causes of Dizziness - Vertigo - Differential Diagnosis Algorithm
True Vertigo - Illusion of Rotary Movement
Peripheral Vestibular
unidirectonal nystagmus ... Dysfunction - Imbalance, neurologic ... bidirectional nystagmus ... Glomus Tumors - Vascular ... #Neurology #Differential
Diagnostic Algorithm for Dizziness and Vertigo
Peripheral Vertigo:
 • Attacks: Sudden, severe, can last anywhere from seconds
minutes to days • Nystagmus ... Varies • No neurologic ... or minutes with vascular ... causes • Nystagmus ... position change • Neurologic
Peripheral and Central Causes of Vertigo
Peripheral Causes (Common):
 - Labyrinth: Benign paroxysmal positional vertigo, Méniére disease,
Central Causes of Vertigo ... Uncommon): - Vascular ... Wallenberg syndrome ... hemorrhage - Non-vascular ... differential #diagnosis #neurology
Lateral Medullary Syndrome - Wallenberg's Syndrome
Acute continuous vertigo due to Posterior Circulation Stroke (usually Posterior Inferior
- Wallenberg's Syndrome ... Acute continuous vertigo ... Nausea/vomiting/vertigo ... /nystagmus - Vestibular ... #Wallenbergs #neurology
Parinaud's Syndrome
What?
 - Impaired upgaze
 - Light-near dissociation
 - Convergence retraction nystagmus
 - Eyelid retraction (Collier's
Parinaud's Syndrome ... Convergence retraction nystagmus ... setting sun sign" - Vascular ... gabifpucci #Parinauds #Syndrome ... diagnosis #pineal #neurology
Characteristics of Peripheral and Central Vertigo
PERIPHERAL VERTIGO
 • Onset: Sudden
 • Intensity: Severe initially, often decreasing
PERIPHERAL VERTIGO ... vestibular neuritis • Nystagmus ... or minutes with vascular ... circulation TIA • Nystagmus ... symptoms #comparison #neurology
Parinaud's syndrome
What?
 • Light-near dissociation (tectal pupils)
 • Convergence retraction nystagmus
 • Eyelid retraction (Collier's sign)
Parinaud's syndrome ... Convergence retraction nystagmus ... setting sun" sign • Vascular ... neudrawlogy #Parinauds #syndrome ... #neurology #diagnosis
Causes of Peripheral and Central Vertigo
PERIPHERAL VERTIGO
1. Benign paroxysmal positional vertigo (BPPV) - Short-lived (typically less
Vascular disorders ... (Wallenberg's syndrome ... with significant neurologic ... Syndrome usually ... attacks with varying neurologic
Wernicke Encephalopathy - Acute B1 (Thiamine) Deficiency - Diagnosis and Management
Diagnosis - Caine Criteria (2 of
Diagnosis and Management ... ophthalmoplegia and nystagmus ... development of Korsakoff syndrome ... Deficiency #Diagnosis #Management ... #neurology #nutrition
One & a half syndrome with upbeat nystagmus due to a left pontine + bimedullary infarction

Dr.
One & a half syndrome ... with upbeat nystagmus ... OneAndAHalf #One #Half #Syndrome ... clinical #video #ophthalmology ... #neurology