13 results
Approach to Headaches - Differential Diagnosis Algorithm

Red flags (PHANTOMS):
 • Pattern change, progressively worse, papilledema
 •
papilledema • Horner syndrome ... lyme • Altered mental ... • Meningeal signs ... lesion • CNS infection ... Diagnosis #Algorithm #neurology
Blood Culture-Negative Infective Endocarditis (BCNIE)
Definition: No etiology found after 3 separate blood cultures remain negative for
requires special media ... antimicrobials, clinical ... but important causes ... antiphospholipid syndrome ... special stains (e.g
Guillain-Barre Syndrome - Summary

Acute AIDP that presents with rapidly progressive flaccid weakness

Epidemiology:
 • 1-2 cases/100,000 per
Guillain-Barre Syndrome ... Epidemiology: • 1-2 cases ... response preceding infection ... Clinical Features ... management #treatment #neurology
Emergent Causes of Headache and Associated Risk Factors
Carbon monoxide poisoning
 - Breathing in enclosed or confined
Emergent Causes ... of sinus or ear infection ... parasitic or fungal infection ... vasoconstriction syndrome ... #redflags #signs
Causes of Secondary Hypertension - Workup and Differential Diagnosis
Approach (when evaluation should be done):
1. Severe or
with previously stable ... hypertension and signs ... 109 mm Hg) with clinical ... renal bruit or signs ... dysautonomia, and Guillain-Barre
Posterior Reversible Encephalopathy Syndrome (PRES) Overview

Clinico-Radiological Syndrome, characterized by:
 • Headache
 • Seizures
 • Altered mental
by: • Headache ... status • Headache ... may precede the neurologic ... the underlying cause ... with AEDs until cause
Differentiating NBTE from Infective Endocarditis
No pathognomonic signs/symptoms or echo features that are specific to NBTE, and
pathognomonic signs ... high index of clinical ... : Serial negative ... in up to 30% of cases ... Marantic #diagnosis #table
Guillain-Barré Syndrome (GBS)
Acute autoimmune demyelinating polyradiculoneuropathy that presents with rapidly progressive flaccid weakness
Epidemiology:
 • Incidence: 1
Guillain-Barré Syndrome ... Incidence: 1 to 2 cases ... to a preceding infection ... #Barre #Syndrome ... diagnosis #management #neurology
Myasthenia Gravis Overview

Myasthenia Gravis is an autoimmune disorder of the postsynaptic neuromuscular junction.  Ab to
Serologic and EMG ... test - Cogan sign ... - Peek sign ... precipitated by: Drugs, infection ... diagnosis #management #neurology
CNS Infections - Viral Encephalitis and Bacterial Meningitis - Differential Diagnosis Framework

Viral Encephalitis:
MCC: Enteroviruses (e.g., coxsackievirus
Enteroviruses (e.g ... • Common clinical ... Acute meningeal signs ... rigidity) • Altered mental ... differential #diagnosis #neurology