Headaches Flashcards
Where are Pain sensitive structures within the cranial vault?
Venous sinuses (e.g sagittal sinus)
Anterior and middle meningeal arteries
Dura at the base of the skull
CN’s V, IX, and X
Proximal portions of the ICA and its branches near the circle of Willis
Brainstem periaqueductal gray matter and sensory nuclei of thalamus
Where are Extracranial pain-sensitive structures?
Skull periosteum
Subcutaneous tissues, muscles, and arteries
Neck muscles
Second and third cervical nerves
Ears, eyes, teeth, sinuses, and oropharynx, nasal cavity
How does cn v present in headaches?
V – sensation from intracranial structures in the anterior and middle cranial fossae (above tentorium). Lesions here can produce pain that radiates in the V nerve distribution. Especially the ophthalmic VI division.
How does cn 9 and 10 present in headaches?
IX and X convey sensory information from part of the posterior fossa; pain originating in this area may also be referred to the ear or throat, as in glossopharyngeal neuralgia.
How do the upper cervical (c2-c3)present in headaches?
The upper cervical (C2-C3) nerves transmit stimuli from infra-tentorial and cervical structures; therefore, pain from posterior fossa often projects to the second and third cervical dermatomes.
What can Acute headache & Facial Pain indicate?
New onset headache or change in headache demand prompt evaluation.
Sudden onset “Worst headache I have ever experienced” – concern?
Associated with neck stiffness and fever – concern? Meningitis
Acute headaches may accompany more benign processes such as viral or other febrile illnesses.
What can Subacute headache & Facial Pain indicate?
Headaches that persist or recur over weeks-months may also signify serious pathology. Esp + Progressive pain and older populations.
Trauma? Malaise? Fever? Neck stiffness? Neuro signs? Weight loss? Visual changes (giant cell arteritis), medications?
What can Chronic Headache and Facial Pain indicate?
MC benign cause (e.g, migraine, TTH - tension type headaches)
What are Signs that headache may be caused by >ICP, including hydrocephalus or tumour?
Headache present at wakening
Pain triggered by coughing, sneezing, or straining
Vomiting (may also indicate migraine)
Worse when lying down
What Precipitating factors can provide a cause oh headaches?
Recent dental surgery
Sinusitis/allergy exacerbation
Viral infection
Emotional stress/tension
Food group consumption e.g nitrates, tyramine etc.
Alcohol (common cluster HA trigger)
Coughing/exertion
What are some preceding factors of Migraines?
Aura
Signs that headache is caused be serious intracranial disease including tumour, encephalitis, or meningitis?
Progressive worsening over days or weeks
Neck stiffness and vomiting (meningeal irritation)
Rash or fever
History of cancer or HIV
Signs that headache may be caused by haemorrhage?
Headache following head injury
Abrupt onset
What types of headaches are unilateral?
Common in Migraine and cluster headache as examples
What types of headaches are bilateral?
Common to TTH
What types of headaches are Ocular or retroorbital?
acute iritis, optic neuritis, but also common to migraine and cluster HA.
What types of headaches cause Bandlike or occipital?
common with TTH. Occipital localisation can also occur with meningeal irritation and with Cx spine disorders.
Lancinating pain localised to V1 and V2 – trigeminal neuralgia
What are associated headache symptoms?
Fever or chills – may indicate systemic infection or meningitis
Visual disturbances – suggest an ocular disorder, migraine, or intracranial lesion involving optic pathway.
Myalgias – often accompany tension headache, systemic viral infections, and GCA.
Ipsilateral rhinorrhoea and lacrimation – cluster headache
Recent weight loss – May accompany malignancy, GCA.
Nausea and vomiting – are common in migraine and post-traumatic headache. Can also be seen in intracranial mass lesions.
Photophobia – migraine possibly, meningitis, SAH
What could Fever or chills indicate?
may indicate systemic infection or meningitis
What could Visual disturbances indicate?
suggest an ocular disorder, migraine, or intracranial lesion involving optic pathway
What could Myalgias indicate?
often accompany tension headache, systemic viral infections, and GCA.
What could Ipsilateral rhinorrhoea and lacrimation indicate?
Cluster headache
What could Recent weight loss indicate?
May accompany malignancy, GCA.
What could Nausea and vomiting indicate?
are common in migraine and post-traumatic headache. Can also be seen in intracranial mass lesions.