headache Flashcards
what are some serious headaches
Thunderclap type
Raised ICP
Infection
Giant cell arteritis
What are primary headaches
Migraine
Tension or medication overuse headache
Cluster headache
what are some other signs of SAH apart from thunderclap headache
loss of consciousness, vomiting
Neck stiffness subhyaloid haemorrhage
What is essential to do for a thunderclap headache
CT
Lumbar puncture is needed if presenting after >12 hours to detect xanthchromia
Mimics of thunderclap headache
Coital headache: however timing is different as it lasts 30-60 mins
Migraine: diagnose after excluding serious causes
Reversible vasoconstriction syndrome
Signs of raised ICP
-What can be the cause
Progressively worsening headache Whole head Occipital area if posterior fossa mass Sub-acute: days to weeks Worst: morning, bending, cough and strain Focal symptoms point to mass lesion -Papilloedema (optic disc swelling) -Check BP as if high can cause
what does a raised pressure headache need
Urgent CT/MRI brain
What are the causes of a raised pressure headache
MAss lesion
Hydrocephalus
Idiopathic intracranial hypertension
what are the signs of meningitis
Signs of encephalitis
Sub-acute: hours to days Fever Altered mental status Rash and neck stiffness Focal signs and seizures- encephalitis or abscess
Management of meningitis and encephalitis
speed
Assess, investigate and empirical treatment before tests are back
Bloods include blood cultures
Empirical anti-microbial treatment
When do you do imaging first in suspected meningitis+encephalitis
When is a lumbar puncture not suitable
Imaging first if: GCS <13; Seizures, Focal signs, papilloedema
LP first otherwise (no LP in Septic shock, anticoagulation)
signs of encephalitis
headache, fever, confusion, focal signs, seizures
how to manage encephalitis including investigations
CT, lumbar puncture then MRI
(no lumbar puncture if raised ICP).
Lumbar puncture tests for Herpes simplex and HIV
-Acyclovir
Signs of giant cell arteritis
Over 50yo New headache Temples or occipital region Tender scalp polymyalgia symptoms (aches and stiffness) Jaw claudication- pain worse when chewing Visual symptoms Weight loss
How serious is giant cell arteritis and why
Urgent as threat of blindness