Unit 1: Headaches Flashcards
Week 1
Headache
“cephalgia”
- primary or secondary
- most common clinical manifestation of pain
- result of the reaction of nociceptors (pain-sensitive nerve endings) to triggers, sending messages to the thalamus via he trigeminal nerve (CN V)
- can influence the performance of ADLs
What is pain related to?
r/t a reaction by the nociceptors (pain-sensitive nerve endings) to triggers sending messages to the thalamus
Primary Headaches
- not associated with other underlying disease or organic causes
- tension headaches (muscular)
- migraine headaches (vascular)
- cluster headaches (neurological)
Secondary Headaches
- caused by an underlying structural problem (stroke, tumor, meningitis, or encephalitis); have a direct cause
- sudden onset of severe pain
- causes: sinuses, ear, nose, mouth, cervicogenic (joints, muscles, vertebrae), referred pain from trigger points in neck, shoulders, and upper back
Primary Headache: Tension Headache
- episodic or chronic
- constant pressure pain
- sensitivity to light
- mild to moderate pain that is bilateral
- pts describe pain as constant pressure to the face, head, and neck; w/ sensitivity to light
- scalp soreness
Tension Headaches: Episodic
- occur 10 to 15 days per month
- lasting 30 minutes to several days
- causes: jaw clenching, temporomandibular joint dysfunction, degenerative arthritis of the neck, forceful/intense
- common location: frontal and temporal, bilateral, occipital
- tension causes headache
Tension Headaches: Chronic
- occur more than 15 days per month during a 3 month period
- more severe than episodic
- causes: work or exercise, poor posture, lack of sleep, sleep apnea, missed meals, depression, anxiety
- pain mild to moderate
- constant pressure to face, head, and/or neck
- sensitivity to light
- scalp soreness
- morning headaches when lack of sleep and/or sleep apnea involved
- forceful/intense
Primary Headache: Migraine Headaches
- 4 phases: premonitory phase, aura, headache phase, and postdromal phase
- occur most frequently in the morning (upon awakening); predictable times (menstruation)
- pulsating, throbbing
- can have double vision (diplopia) or seeing spots (floaters)
- mood changes, fluid retention, increased urinary output, excessive uncontrolled yawning, food cravings, aura, confusion, exhaustion
Migraine Headaches: 4 Phases
- Premonitory phase: can occur 24 hours before headache develops; mood changes, fluid retention, increased urine output, excessive uncontrolled yawning, and food cravings
- Aura: just prior to the migraine, may experience particular sensations (auras); flashing lights and muscle weakness
- Headache Phase: pain starts gradually, building in intensity; some have a migraine w/o headache pain
4: Postdromal Phase: confusion and exhaustion; last for 24 hours before pt feels they are back to their baseline health
Migraine Headaches: Triggers
- changes in weather
- changes in environment
- strong odors/fumes
- tobacco
- motion sickness
- hormonal changes
- hypoglycemia
- flashing lights
- lack of sleep
- stress
Migraine Headaches: Food Triggers
- aspartame
- wine
- aged cheeses
- monosodium glutamate (MSG)
- caffeine
- caffeine withdrawal
- fruits
- nuts
- fermented and pickled foods
- yeast
- processed foods
Primary Headaches: Cluster Headache
“neurovascular headache”
- most severe
- severe, unrelenting, unilateral pain in and around the eye
- peak pain: within 5 to 10 minutes after onset; continuing in intensity for 1 to 3 hours
- occur around the same time for several weeks
- more often at night
- recur daily for weeks to months followed by periods of remission
- agitation and restlessness
Diagnosis of Headaches
- HX and physical
- Blood Tests
- Lumbar Puncture
- CT
- MRI
- depends on time course of headache occurrence
- review of the headache diary (medical Hx)
- neurological assessment
- to help r/o secondary causes
Patients with sudden onset of headache are evaluated for clinical manifestations of?
- meningitis
- cerebrospinal fluid (CSF) leak (pts who have had a lumbar puncture or epidural catheter removal)
- cerebral aneurysm
- cerebral aneurysm rupture
- or brain tumor
Headache Diary
- part of the medical Hx
- to track, characterize headache symptoms over a period of time
- record time, date, activities, foods, and medications
Diagnostic Tests: Blood Tests
- to assess for infection (CBC, cultures)
- assess for inflammation (C-reactive protein, erythrocyte sedimentation rate)
Diagnostic Test: CT/ MRI
to r/o masses, cysts, aneurysms, and irregularities in the vessels or bones of the head
Diagnostic Test: Lumbar Puncture
CSF obtained to measure pressure (high or low pressures can cause headaches), signs of infection, and inflammation