headaches Flashcards
(22 cards)
what are the signs of raised ICP?
papilloedema (blurred vision), worse in morning and bending/strain/cough, N+V, wake up at night
what investigations could you do for raised ICP?
ophthalmoscopy, visual fields and acuity
investigate CSF pressure via LP- >30 abnormal (scan first as might be SOL and then could cause coning aka hernia)
What are the differentials of raised ICP?
Hydrocephalus SOL trauma stroke pseudopapilloedema- due to calcium deposits Intracranial Hypertension Secondary to: Subdural Venous Thrombosis Arteriovenous Malformation Menigitis/Encephalitis sagittal sinus thrombosis- do a CT venogram malignant htn benign/idiopathic intracranial htn
What red flags do you look for with a headache?
seizure, neck stiffness, older person, systemic symptoms, confusion, LOC, PMH of cancer, duration
How does benign/idipathic intracranial htn present?
young, obese women usually with normal CT and papilloedema, shoulder pain, pulsatile tinnitis, need to treat as can go blind; manage with estezoloamide
What are the symptoms of a subarachnoid haemorrage?
thunderclap, acute, stiff neck, photophobia, N+V, confusion and LOC
What are the investiations for SAH if seen straight away? What about if they’re seen two weeks later?
LP and CT head- see xanthochromia after 12 hours, will vanish after 12 days. After 12 days do a CT angiogram
What is a typical history for giant cell arteritis?
over 55 yrs, temporal tenderness and loss of vision (curtain fall- amaurosis), jaw claudication, PMH stroke in postural circulation
What investigations do you do for giant cell arteritis?
check ESR and CRP
temporal biopsy
How do you tell the difference between a TIA and a migraine?
TIA is acute, with negative symptoms eg loss vision, numbness.
Migraines are normally aura gradual roughly 1 hour, sequential, positive symptoms eg pain, tingling, visual additions
How does a tension headache typically present?
bilateral, tight, squeezing and worse in evening
How does a migraine present?
unilateral throbbing for 4-72 hrs, aura, triggers, faitgue, want to be still, usually don’t get multiple in one day
What is the management for migraines?
- NSAIDs
- anti emetic (such as metoclopramide or prochlorperazine) and sumatriptan (SE-IHD)
- preventative eg propranolol (1st line), topiramate (SE of kidney stones and teratogenic), Amitriptyline and candesartan
- add preventative if struggle with triptans or are getting over two attacks a month - botox
How does a cluster headache present?
severe, unilateral, episodic, multile in one day, lasts 10 mins to one hour, worse in morning, relieve by pacing, autonomic symptoms (tearing, running nose and red eye), in young male smokers, stereotyped
What is the management for a cluster headache?
acute: oxygen + SC triptan
prophylactic: 1st line is verapamil (SE: heart block)
How does meningitis present?
pyrexia, N+V, stiff neck, rash, confusion, photophobia, LOC, seizures
What are kernigs and brudzinskis signs?
brudzinskis is hips flex on bending the head forward
kernigs is pain and resistance on passive knee extension with hips fully flexed
what are the investigations for meningitis?
LP- if no signs of raised ICP for cultures CT scan blds culture urine U+Es may do coagulation profile for DIC
what is the management for meningitis?
supportive
dexamethasone
IV cefotaxime
acyclovir if viral
mx of SAH?
Re-bleeding is the most imminent danger; a first aim is therefore occlusion of the aneurysm. Endovascular obliteration by means of platinum spirals (coiling) is now the preferred mode of treatment, but some patients require a direct neurosurgical approach (clipping)
CCB to prevent vasospasm - Nimodipine
presentation of trigeminal neuraliga?
a unilateral disorder characterised by brief electric shock-like pains, abrupt in onset and termination, limited to one or more divisions of the trigeminal nerve
the pain is commonly evoked by light touch, including washing, shaving, smoking, talking, and brushing the teeth (trigger factors), and frequently occurs spontaneously
the pains usually remit for variable periods
mx trigeminal neuralgia?
carbamazepine is first-line