Headache Flashcards
What are the 2 types of headache?
primary
secondary
What is a primary headache?
no underlying medical cause
what are some exaples of a primary headahce?
Tension Type Headache
Migraine
Cluster Headache
What is a secondary headache
has an identifiable structural or biochemical cause
something has happened and you get a headache because of that
what are some exaples of secondary headaches
Tumour
Meningitis
Vascular disorders
Systemic infection
Head injury
Drug-induced
Are primary or secondary headaches more common?
90% of headaches are primary headaches
What is the most frequent type of primary headache?
tension-type headache
Is a tension-type headache disabeling?
no and rarley presents to doctors
What is the prevelence of tension-type headache?
Lifetime prevalence of 42% in men and 49% in women
What are the symptoms of a tension-type headache?
Mild, bilateral headache which is often pressing or tightening in quality, has no significant associated features and is not aggravated by routine physical activity
bilateral pressing
How is a tension-type headache differentiated form being infrequent, frequent and chronic?
What are the 2 different types of treatment used for TTH?
abortive and preventative
What are some abortive TTH treatments?
Aspirin or paracetamol
NSAIDs
Limit to 10 days per month (~2 days per week) to avoid the development of medication overuse headache
What are some preventative TTH treatments?
Rarely required
Tricyclic antidepressants
amitriptyline, dothiepin, nortriptyline
What is the most frequent disabeling primary headache?
migraine
WHat is the epidemiology of migraine?
6 million people in the UK
Lifetime prevalence: 10% in men and 22% in women
Most sufferers aged 20 to 50
What is migraine?
A chronic disorder with episodic attacks
Complex changes in the brain
A migraine is usually a moderate or severe headache felt as a throbbing pain on 1 side of the head.
Many people also have symptoms such as feeling sick, being sick and increased sensitivity to light or sound
There are several types of migraine, including:
migraine with aura – where there are specific warning signs just before the migraine begins, such as seeing flashing lights
migraine without aura – the most common type, where the migraine happens without the specific warning signs
migraine aura without headache, also known as silent migraine – where an aura or other migraine symptoms are experienced, but a headache does not develop
What is experieenced during a migraine attack?
Headache
Nausea, photophobia, phonophobia
Functional disability
What is experienced inbetween anxiety attacks?
Enduring predisposition to future attacks
Anticipatory anxiety
What are migraine triggers?
Normal life events trigger or are associated with attacks in those predisposed
life stress
a neurologic condition in which the brain of predisposed patients is overresponsive to everyday triggers that normally do not initiate attacks
A migraine attack prgoresses through various stages
what are the stages?
Starts as a premonitory phase then into an aura phase which only 1/3 of people experience then there is an early and advanced headache phase in which treatment should be done in the early headache phase then finally there is a postdrome phase
What is aura?
Affects ~33% of migraineurs
Transient neurological symptoms resulting from cortical or brainstem dysfunction
May involve visual, sensory, motor or speech systems
Slow evolution of symptoms:
Moves from 1 area to next e.g. vision → sensory → speech
How long does aura last?
15-60 minutes
What can aura be confused with? and what are the differences?
Can be confused with transient ischaemic attack
Loss of function
Sudden onset where as aura comes on over a few mintues
Symptoms all start at same time and can be localised to a specific vascular area
What is a chronic migraine?
Headache on ≥ 15 days per month, of which ≥ 8 days have to be migraine, for more than 3 months
Transformed migraine may be the cause for chronic migraine, what is transformed migraine?
History of episodic migraine
Increasing frequency of headaches over weeks / months / years
Migrainous symptoms become less frequent and less severe
Many patients have episodes of severe migraine on a background of less severe featureless frequent or daily headache
What is the cause of a transformed migraine and what makes it better?
Transformation can occur with or without escalation in medication use
In patients with medication overuse, discontinuing the overused medication often (but not always) dramatically improves headache frequency
What is a medication overuse headache?
Headache present on ≥15 days/month which has developed or worsened whilst taking regular symptomatic medication
Can occur in any primary headache
Migraineurs are particularly prone to MOH
Migraineurs taking pain medication for another reason can develop chronic headache
Can also be caffeine overuse
What are the 2 different types of migraine treatments?
abortive treatment
prophylactic treatment
What are some abortive migraine treatments?
Aspirin or NSAIDs
Triptans
Limit to 10 days per month (~2 days per week) to avoid the development of medication overuse headache
What are some prophylactice migraine treatments?
Propranolol, Candesartan
Anti-epileptics - Topiramate, Gabapentin
Tricyclic antidepressants - amitriptyline, dothiepin, nortriptyline
Venlafaxine
What are some specific issues to do with migraine seen in women?
Migraine without aura gets better in pregnancy but migraine with aura usually does not change
First migraine can occur during pregnancy - particularly migraine with aura
Avoid anti-epileptics in women of child bearing age
Treatment is more difficult in pregnancy
What are Trigeminal Autonomic Cephalalgias (TACs)?
a group of headache disorders characterised by attacks of moderate to severe unilateral pain in the head or face, with associated ipsilateral cranial autonomic features
What are some exaples of Trigeminal Autonomic Cephalalgias?
cluster headache
paroxysmal hemicrania
SUNCT
What is a cluster headache?
Cluster headaches are excruciating attacks of pain in 1 side of the head, often felt around the eye
Cluster headaches are rare. Anyone can get them, but they’re more common in men and tend to start when a person is in their 30s or 40s
What pain is experienced during a cluster headache?
mainly orbital and temporal
Excruciatingly severe (“suicide headache”)
Patients are restless and agitated during an attack
Prominent ipsilateral autonomic symptoms