1 Flashcards
(42 cards)
What is the global prevalence of tension headaches?
Approximately 26%
Slightly more common in women and peaks during adolescence and the fourth decade of life.
What are the characteristics of acute tension headaches?
Sudden onset of localized or unilateral pain, worsened by postural changes, may include vision changes, severe nausea, fatigue, and low-grade fever.
Describe the pain characteristics of chronic tension headaches.
Mild, pressing, bilateral pain, not worsened by physical activity, typically lacks nausea, vomiting, or photophobia.
What are common symptoms of tension headaches?
Bilateral non-pulsating pain, muscle tenderness in the head, generally no nausea or photophobia.
What is the pathogenesis of tension headaches?
Peripheral activation or sensitization of nociceptors in facial and cranial muscles, limbic system involvement.
What is the lifetime prevalence of cluster headaches?
0.1%
Male-to-female ratio of 3:1.
What are the symptoms of hyperacute cluster headaches?
Sudden, severe stabbing pain, typically peri-orbital or temporal, lasting 15 minutes to 3 hours, may occur up to 8 times a day.
What cranial autonomic features may accompany cluster headaches?
Agitation, cutaneous allodynia, ptosis, eyelid redness, miosis, rhinorrhea.
What is the pathogenesis of cluster headaches?
Activation of the trigeminovascular system, involving the hypothalamus and nociceptive brain networks.
What is the incidence of subarachnoid hemorrhage (SAH)?
Approximately 7.9 per 100,000.
What are common risk factors for subarachnoid hemorrhage?
Untreated aneurysm, smoking, hypertension, genetics, anticoagulants, low estrogen, alcohol use, sympathomimetic drugs.
Describe the headache characteristics of subarachnoid hemorrhage.
Sudden, severe headache described as ‘the worst headache of my life,’ peak within one hour, may include focal or diffuse pain.
What are the common symptoms following a subarachnoid hemorrhage?
Transient loss of consciousness, vomiting, neck stiffness, may involve third cranial nerve palsy.
What is the clinical syndrome of migraine?
Phased pattern: prodrome → aura (optional) → headache → postdrome.
What percentage of the general population is affected by migraines?
~12%
More common in women, especially ages 30–39.
What are common triggers for migraines?
Stress, menstruation, sleep deprivation, fasting, bright lights, odors, weather changes, nitrates, wine, alcohol, aspartame.
What is the pathogenesis of migraines?
Hyperexcitation of neurons activating brain, skull, and face innervation, trigeminal nucleus involvement, and broad cortical spreading depression.
What is the prevalence of chronic sinusitis in the population?
5–12%.
What are common symptoms of chronic sinusitis?
Thick, discolored nasal discharge, facial pressure or fullness, nasal congestion, temporary anosmia, fatigue, cough, sleep disturbance, hoarseness.
What is the pathogenesis of chronic sinusitis?
Recurrent inflammation of paranasal sinuses due to impaired drainage and anatomical or immunological predisposition.
What is the incidence of brain tumors?
~25 per 100,000.
What factors are associated with an increased risk of brain tumors?
Ionizing and non-ionizing radiation, pesticides, prior head trauma, toxic chemicals, smoking, alcohol, viral infections, genetics.
What are the characteristics of headaches associated with brain tumors?
Constant or progressive dull headache, may be pulsatile, often bifrontal, worsens with posture change, coughing, sneezing.
What can brain tumors lead to in terms of neurological symptoms?
Fatigue, sensory loss, aphasia, spatial disorientation, cognitive impairment, elevated ICP.