Headaches
Transcription
Headaches
Headache and vertebrogenic syndromes for students of Dentistry Hana Kalistová Department of Neurology of the 1st Faculty of Medicine and General Teaching Hospital Headaches - classification • International Headache Classification (IHS 1988): - primary: manifestation of chronic paroxysmal disease - secondary: symptom of other disease Primary headaches • Migraine • Tension headache • Cluster headache and chronic paroxysmal hemicrania • Various headaches without structural lesion Secondary headaches Headache associated with traumatic injury (acute and chronic) Headache associated with vascular disease (SAH, stroke, intrakranial hematomas – subdural, epidural, intracerebral, AV malformations, arteriitis, dissection, phlebothrombosis) Headache associated with non-vascular intracranial disease (intractranial infections, tumors, CSF hypertension and hypotension) Headache caused by chemical substances or by their discontinuation (acute or chronic abuse or discontinuation of substances: alcohol, ergotamine, analgesics, caffeine, narcotics, nitrates, steroids,…) Secondary headache II • Headache caused by infection outside the brain • Headache associated with metabolic disturbances (hypoxia, hypercapnia, hypoglycemia, dialysis) • Headache or facial pain associated with diseases of skull, neck, eyes, sinuses, teeth or some other facial or head structures • Neuralgia, pains of nerve trunks and deafferentation pains (retrobulbar neuritis, diabetic neuritis, inflammation of nerves – herpes zoster, thalamic headaches) In differential diagnosis, the most important is: to soon detect severe, lifethreatening secondary headache Warning symptoms • The first headache in patient older than 40 years • Intensive headache with sudden onset • Atypical headache unresponsive to common treatment • Headache in a patient with tumor or HIV infection • Qualitative or quantitative disturbance of consciousness • Focal neurological finding (except from migraine aura) Life-threatening headaches • • • • • Intracranial expansive process Hydrocephalus Bacterial or viral meningoencephalitis Subarachnoid hemorrhage Craniocerebral trauma Examination methods • • • • • Detailed medical history Neurological examination Brain CT MRI Lumbar puncture Subarachnoid hemorrhage (see lecture about stroke) • Rupture of aneurysms in the Circle of Willis • Elevation of BP (physical strain, anger, coitus, defecation) • Clinical picture: - somnolence, sopor - agitation, aggressivity, negativistic behavior - meningeal syndrome (from min to hours) Headache in SAH • Developes during several seconds • Bilateral localization, sometimes with maximum in occipital region • Accompanied by nausea, vomiting, photo- and phono-phobia • CAVE: may mimic CC syndrome Tension headache • the most common type of primary headache /69% in men, 88% in women/ • Episodic tension headache /less than 15 days per month or 180 days/year/ • Chronic tension headache /more than 15 days per month or 180 days/year/ Character tof tension headaches • Duration: 30 min - 7 days • pressure, non-pulsating character, feeling of being constricted by tire • mild to moderate intensity • diffuse localization • may be accompanied by mild photo- or phono-phobia Treament of tension headaches • Acute pain: - common analgesics, muscle relaxants • Chronic pain: psychologist /autogenic training, biofeedback/ - physiotherapy /relaxation exercise/ - pharmacological /analgesic, anxiolytics, muscle relaxants/ Migraine • 2nd most frequent primary headache • Prevalence is 6% men and 20% women – 850 000 individuals in Czech Republic • Typical onset in childhood or adolescence, earlier: migraine with aura and migraine in boys Incidence of migraine Types of migraine • Migraine without aura (80%) (common migraine) • Migraine with aura (classic migraine) Phases of migraine Prodromal phase Aura Headache Postdromal phase Migraine – prodromal phase • In 60% of pacients, several hours to several days before headache - physical (sensation of stiff neck) - mental (irritability, fatigue) - altered behavior (mood swings, increased appetite) Migraine – aura - In 20% of pacients - Duration to 60 min - Begins before or during headache Migraine - aura • • • • Visual (scintillation, scotomas) Sensitive (hypesthesia, paresthesia) Motor (mono-, hemipareses) Speech disturbances (dysarthria, aphasia) Migraine – headache • • • • • • Duration: 4-72 hours 2-5x per month Often pulsating Moderate to severe intensity Worsens with physical exertion Unilateral (60%) Migraine – accompanying symptoms • • • • • Nausea Vomiting Photophobia Phonophobia Odorophobia Migraine – postdromal symptoms • Fatigue • Relief • Mood change Treatment of migraine • Acute • Prophylactic Pathogenesis of migraine „Trigger“ faktory Kortex Thalamus Hypothalamus Nucleus raphe Locus coeruleus dorsalis Dura mater ¨Ganglion nervi trigemini Triptany AV anastomosa Prodloužená mícha C1 C2 Goadsby & Olesen, 1996 Specific treatment of migraine Agonists of 5HT1B/D receptors triptans treat and terminate migraine attack (??) Specific treatment of migraine Triptans: sumatriptan naratriptan zolmitriptan eletriptan frovatriptan Nonspecific treatment of migraine Analgesics – do not cure, only make pain milder Risks: Ineffectiveness of analgesic (u 50%) Excessive consumption of analgesics Dependence Development of severe chronic headaches Higher incidence of side effects • peptic ulcer • damage to liver or kidneys Chronic daily headache • Complication of primary headaches • Pain occurs more often, subsequently presents with persistent milder intensity and loses original paroxysmal character and classic concomittant symptoms Risk factors for transformation • Excessive use of analgesic, especially of those with central effect • Neurotic personality (tendency to anxiety and depression) • Enviromental stress factors (work, family) • Menopause Preventive therapy • Severe course of migraine • Inefficacy or contraindication of acute therapy • Side effects of acute therapy • It is necessary to use it at least 3 months • Reduces intensity and frequency of attacks by 50% Preventive treatment of migraine • Antiepileptic drugs (valproate, gabapentin, topiramate) • Antidepressants (amitriptyline, SSRI) • Beta-blockers • Antagonists of 5-HT2 receptors • Antagonists of Ca - IV. type Cluster headache • Intensive, unilateral, periorbital or temporal • Duration: 15-180 min • Frequency of attacks: 1-8x per day • Especially men Cluster headache – accompanying symptoms • • • • • • • • Hyperemia of conjuctiva Lacrimation (excessive tears) Rhinorhoea Sweating of face or forehead Miosis Ptosis Oedema of eyelids Congestion of nasal mucosa Cluster headache Cluster headache – acute treatment • Inhalation of oxygen • Sumatriptan s. c. or nasal spray • Methylprednisolone or dexamethasone i. v. • Lidocain nasal drops Cluster headache - prophylaxis • • • • Prednisone or dexamethasone Verapamil, nimodipine Lithium Antiepileptic drugs (valproate, gabapentin, topiramate) Chronic paroxysmal hemicrania • • • • Occurs mostly in women Frequency: more than 5 attacks per day Duration: 2-45 min Rensponsive to indomethacin Neuralgia • Headache, mostly paroxysmal, in distribution territory of peripheral nerve Sensitive innervation of n. V Neuralgia of trigeminal n. • Primary (essencial, in 80-90% with neurovascular problem – a. cerebelli superior or PICA) • Secondary: irritation of n. V by pathological processes anywhere along the nerve (tumors in posterior fossa, multiple sclerosis, affected teeth, paranasal sinuses or eyes, postherpetic, damage to n. V in parasellar localization) Primary neuralgia of trigeminal n. • Unilateral, very intensive, whipping pain, more often 2nd and 3rd branch of trigeminal n. • Duration: several seconds - minutes • Accompanied by painful contraction of mimic muscles (tic douloureux) • Trigger point • Normal neurological finding Secondary neuralgia of trigeminal nerve • Localized also in the territory of the 1st branch • Dull pain, sometimes paresthesias, fluctuating intensity • Neurological examination: painful exit sites of n. V, sensory disturbances, ev. motor disturbances in innervation territory of n. V + other symptoms according to the character of lesion (PC angle, MS,..) Treatment of neuralgia • Carbamazepine, phenytoin, gabapentin, pregabalin, valproate, lamotrigine, clonazepam, amitriptyline, baclofen • Microvascular decompression of n. V • Stereotactic neurosurgery – GAMA knife (effect with latency of 1 month) • Percutaneously through foramen ovale (radiofrequency gangliolysis, retrogasserian glycerol radiculolysis or retrogasserian thermolesion by electrocoagulation) Neuralgia of n. IX • Paroxysmal pain in the location of the tongue root, tonsils, ear or mandibular angle • Provoked by speech, swalllowing, cough Neuralgia of genicular ganglion Neuralgia of genicular ganglion • Often h. zoster etiology, eruption in external auditory canal • Pains are localized in ear (sensory innervation of intermedial n.) and may irradiate into maxilla and mandible • Peripheral paresis of the facial n., sometimes vestibulocochlear n. is affected as well (hypacusis, tinnitus, vestibular symptoms) Occipital neuralgia • In the area of n. occipitalis major (root C2) • Diff. dg.- CC syndrome and processes in posterior fossa • Therapy: targeted injection of the nerve N. occipitalis major Neuralgia of superior laryngeal nerve • Localization: outer side of larynx, submandibular area and under the ear • Pain is triggered by: pressure to the larynx, by swallowing, speech or rotation of head • Duration: minutes to hours Vertebrogenic disease Spine Diagram of the vertebra Longitudinal section of the spine Vertebrogenic disease - Extraordinarily frequent, with marked socioeconomic impact - 1% of population suffers from transient, 1% from permanent vertebrogenic disease - 1/3 of all sick leaves - most often in the age of 45-60 years - LS:C:Th 4:2:1 Muscle corset - paravertebral muscles - trunk muscles - abdominal muscles Posture disorders Predisposing conditions • Injuries • Exposure to cold • Exertion during work, sports - remaining in one position for long time - lifting heavy objects - rotations - vibrations Sources of „vertebrogenic pains“ • • • • Paravertebral muscles Ligaments and fasciae Bone structures Spinal nerve roots Mechanisms of vertebrogenic pains • Muscle contractures • Blocks and hypermobility of intervertebral joints • Compression of spinal nerve root by prolapse of a disc, by a sequestrum, osteophyts or in spondylolisthesis • Destruction of bone - traumas, tumors, rarely also inflammatory process Severity grade of vertebrogenic pains • Simple back pine without radicular symptoms • Irritative radicular syndrome • Destructive radikular syndrome • Conus and cauda syndrome • Oppression of spinal cord Cervicocranial syndrome • Medical history similar to expansive process or SAH v posterior fossa • Irradiation of pain with maximum into occipital area • Clinical examination • CT, MRI Dermatomes on upper limbs Cervicobrachial syndrome • Pains from Cp to the shoulders and upper limbs, with unclear borders, without objective signs of radicular lesion • The most common cause: facet syndrome – affliction of intervertebral joints Radicular syndrome C6 • Autodermography and hypesthesia in C6 area • Strength deficit and hypotrophy in biceps brachii muscle • Obj.: lower biceps reflex • Diff. dg.: carpal tunnel syndrome • EMG Radicular syndrome C7 • Autodermography and hypesthesia in C7 • Deficit of strength and hypotrophy in triceps brachii muscle • Lower triceps reflex • EMG Radicular syndrome C8 • Autodermography and hypesthesia in C8 • Deficit of strength and hypotrophy of interosseal muscles • Lower reflex of flexors of digits • Diff. dg.: syndrom kubitálního kanálu • EMG Algic syndrome of thoracic spine • Pseudoradicular: they mimic other diseases (angina pectoris, myocardial infarction) – provoked by physical exertion, + reaction to nitroglycerin), medical internal examination necessary • Radicular: classic radicular syndromes • RTG a MRI Spondylogenic cervical myelopathy I • Disturbed function of C spine due to compression by osteoproductive or destructive alterations of spine • Slowly progressing course • Pain of C spine only in 70% patients Spondylogenic cervical myelopathy II • Clinically: affliction of upper motor neuron for lower limb and of lower/upper motor neuron for upper limb • Spastic gait + disorder of fine motor skills on upper limb (clumsy hand syndrom) Low back pain (lumbago) • The most common disease of lumbar spine • Blockage of joints, affliction of soft tissues (fasciae, ligaments, paravertebral muscles) Dermatomes on lower limbs Motor innervation on lower limbs Radicular syndromes of lumbar spine • Pseudoradicular syndrome: mimic other diseases. It is necessary to examine hip, knee, SI joint and potential urological or gynecological causes • Radicular syndromes (compression of the root, most often by the prolapse of intervertebral disc) Prolapse of intervertebral disc Prolapse of intervertebral disc Vertebrogenic diseases Factors that accelerate degeneration: - overloading the spine - deficit of physical activity For the function and morphology of the spine, it is optimal: - adequate physical load (various forms of exercise) Radicular syndromes on lower limbs • Clinically important: L5 and S1 • Medical history, clinical examination • CT (if examination of only 3 segments is sufficient) • MRI Radicular syndrome L5 • Frequent • weakened extensor hallucis longus muscle and tibialis anterior • weakened patellar reflex, patient not capable of standing on the heel Radicular syndrome S1 • Frequent • Weakness and atrophy of triceps surae muscle (smaller circumference of the shin) • Objectively diminished pattelar reflex, patient is not capable of standing on the tip Cauda syndrome Cauda syndrome • Compression of cauda by herniation or sequestrum • Pains irradiating to both lower limbs, diminished reflexes in affected segments • Perianogenital hypesthesia and lower anal reflex • Retention → urinary incontinence • If suspected c.s., acute MRI must be done • Cauda shall not remain without proper care „overnight“! Examination methods in vertebrogenic diseases • Medical history, clinical examination • Native RTG • MRI, CT, ev. PMG • Scintigraphy of bones • EMG, SSEP, MEP Treatment of vertebrogenic diseases • NSAID, analgesic drug of II. type • Relax in the bed • Muscle relaxants • Rehabilitation • Surgery Treatment • Acute pains • Chronic pains - Total rest in the bed - Adequate motor activity, individual RHB - Exposure to cold or heat - Test of the effect of heat (less than 3 months) - Analgesic drugs + muscle relaxants (more than 3 měsíce) - Analgesic drugs + coanalgesics (muscle relaxants only in acute exacerbation) Treatment II • Analgesics and non-steroid antiinflammatory drugs - only short-term use • Opiod analgesics - in case of little effect or intolerance to the I. type • Muscle relaxants - short-term use (max. 2 weeks) Treatment III • Root injections: - Administration of local into anesthetics to intervertebral foramen of corresponding root (transient relief for several hours) - Epidural administration of steroids + anesthetics (little effect in radiculopathy) Surgery • 1 – 3% of patients • Most often because of prolapse of intervertebral disc • Probability of failure is 10-30% (failed back surgery syndrome), in 5-18%: new surgery is performed Thanks for your attention.