17 results
Causes of Dizziness - Vertigo - Differential Diagnosis Algorithm
True Vertigo - Illusion of Rotary Movement
Peripheral Vestibular
Causes of Dizziness ... Illusion of Rotary Movement ... vomiting, auditory symptoms ... symptoms/signs, ... #Neurology #Differential
Peripheral and Central Causes of Vertigo
Peripheral Causes (Common):
 - Labyrinth: Benign paroxysmal positional vertigo, Méniére disease,
Peripheral and Central Causes ... of Vertigo Peripheral ... Causes (Common) ... (TIA): • Lateral ... differential #diagnosis #neurology
Causes of Peripheral and Central Vertigo
PERIPHERAL VERTIGO
1. Benign paroxysmal positional vertigo (BPPV) - Short-lived (typically less
Causes of Peripheral ... without an obvious cause ... (Wallenberg's syndrome ... Syndrome usually ... #diagnosis #neurology
Dizziness and Vertigo Algorithm
Presyncope:
 • Feels "faint" or like they are going to "pass out"
 •
Dizziness and Vertigo ... "pass out" • Symptoms ... worse with movement ... Associated with nausea ... differential #diagnosis #neurology
Lateral Medullary Syndrome - Wallenberg's Syndrome
Acute continuous vertigo due to Posterior Circulation Stroke (usually Posterior Inferior
Lateral Medullary ... continuous vertigo ... Clinical Findings: • Nausea ... /vomiting/vertigo ... #Wallenbergs #neurology
Characteristics of Peripheral and Central Vertigo
PERIPHERAL VERTIGO
 • Onset: Sudden
 • Intensity: Severe initially, often decreasing
PERIPHERAL VERTIGO ... with vascular causes ... direction-changing on lateral ... findings #signs #symptoms ... #comparison #neurology
Adie's Pupil
What? Unknown nature & benign
 • Regular and mildly dilated pupil (4-6mm);
 • Light-near dissociaton;
dissociaton; • Usually unilateral ... Holmes-Adie Syndrome ... abnormal extraocular movements ... dissociation • Other causes ... #PhysicalExam #neurology
Lesions of the Spinal cord - Spinal Cord Syndromes

Spinal cord lesions can result in permanent neurologic
result in permanent neurologic ... Lower motor neuron symptoms ... Upper motor neuron symptoms ... involved - Bilateral ... differential #diagnosis #neurology
Neuromyelitis Optica (NMO) - Clinical Manifestations
 • Optic neuritis: Reduced visual acuity, ranging from mild to
/pain upon eye movement ... involvement: Intractable nausea ... Other brainstem syndromes ... Manifestations #diagnosis #neurology ... #symptoms #signs
Cauda Equina Syndrome Overview

Cauda Equina Syndrome:
 • Prevalence: 1:33,000-100,000 ppl/yr
 • Incidence: 1.5-3.4 million ppl/yr
 •
spine L1-L5 Symptoms ... so-called ‘red flag’ symptoms ... - Emergency Causes ... Examination - bilateral ... #neurology