Migraine history and symptoms: Difference between revisions

Jump to navigation Jump to search
m (Bot: Removing from Primary care)
 
(13 intermediate revisions by 2 users not shown)
Line 2: Line 2:
{{Migraine}}
{{Migraine}}
{{CMG}}
{{CMG}}
==Overview==
The signs and symptoms of migraine vary among patients. Therefore, what a patient experiences before, during and after an attack cannot be defined exactly. The four phases of a migraine attack listed below are common but not necessarily experienced by all migraine sufferers. Additionally, the phases experienced and the symptoms experienced during them can vary from one migraine attack to another in the same patient: (1) the [[prodrome]], which occurs hours or days before the headache, (2) the [[aura (symptom)|aura]], which immediately precedes the headache, (3) the [[pain and nociception|pain]] phase, also known as headache phase and (4) the postdrome phase.
==History and Symptoms==
==History and Symptoms==
The signs and symptoms of migraine vary among patients. Therefore, what a patient experiences before, during and after an attack cannot be defined exactly. The four phases of a migraine attack listed below are common but not necessarily experienced by all migraine sufferers. Additionally, the phases experienced and the symptoms experienced during them can vary from one migraine attack to another in the same migraineur:<br>
1. The [[prodrome]], which occurs hours or days before the headache.<br>
2. The [[Aura (symptom)|aura]], which immediately precedes the headache.<br>
3. The [[Pain and nociception|pain]] phase, also known as headache phase.<br>
4. The postdrome.
===Prodrome Phase===
===Prodrome Phase===


Prodromal symptoms occur in 40 to 60% of migraineurs.  This phase consists of vegetative or affective symptoms as much as 24 to 48 hours prior the beginnings of the migraine attacks. The typical symptoms may consist of altered mood, [[irritability]], [[clinical depression|depression]] or [[Euphoria (emotion)|euphoria]], [[fatigue (physical)|fatigue]], [[yawning]], excessive sleepiness, craving for certain food (e.g., [[chocolate]]), stiff muscles (especially in the neck), [[constipation]] or [[diarrhea]], [[polyuria|increased urination]], and other vegetative symptomsThis experience teaches the patient or observant family how to detect that a migraine attack is near. <ref name="pmid15447695">{{cite journal| author=Kelman L| title=The premonitory symptoms (prodrome): a tertiary care study of 893 migraineurs. | journal=Headache | year= 2004 | volume= 44 | issue= 9 | pages= 865-72 | pmid=15447695 | doi=10.1111/j.1526-4610.2004.04168.x | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=15447695  }} </ref>
Prodromal symptoms occur in 40 to 60% of migraineurs.  This phase is characterized by the occurrence of vegetative or affective symptoms as early as 24 to 48 hours prior the beginning of the migraine attacks. The typical symptoms include altered mood, [[irritability]], [[clinical depression|depression]] or [[Euphoria (emotion)|euphoria]], [[fatigue (physical)|fatigue]], [[yawning]], excessive sleepiness, craving for certain food (e.g., [[chocolate]]), muscle stiffness (especially in the neck), [[constipation]], [[diarrhea]] or [[polyuria|increased urination]].  The prodrome phase helps the patient or observant family to predict the occurrence of a new migraine episode.<ref name="pmid15447695">{{cite journal| author=Kelman L| title=The premonitory symptoms (prodrome): a tertiary care study of 893 migraineurs. | journal=Headache | year= 2004 | volume= 44 | issue= 9 | pages= 865-72 | pmid=15447695 | doi=10.1111/j.1526-4610.2004.04168.x | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=15447695  }} </ref>


===Aura Phase===
===Aura Phase===


For the 20-30%<ref>Young, William B. and Silberstein, Stephen D., ''Migraine and Other Headaches''. St. Paul, Minn: AAN Press, 2004.</ref><ref>Evans, Randolph W., MD, and Matthew, Ninan T., MD. ''Handbook of Headache'', Second Edition. Philadelphia: Lippincott Williams & Wilkins. 2005.</ref>  of migraineurs who suffer migraine with [[aura]], this aura comprises [[Focal neurologic signs|focal neurological phenomena]] that precede or accompany the attack.  They appear gradually over 5 to 20 minutes and generally last fewer than 60 minutes.  The [[pain]] phase of the migraine attack usually begins within 60 minutes of the end of the [[aura]] phase, but it is sometimes delayed up to several hours, and it can be missing entirely.  The [[Aura|auras]] are most often [[visual]], but can also be [[sensory]], [[Developmental dyspraxia|verbal]] or [[Motor skills disorder|motor disturbances]] <ref> name="pmid17495755">{{cite journal| author=Cutrer FM, Huerter K| title=Migraine aura. | journal=Neurologist | year= 2007 | volume= 13 | issue= 3 | pages= 118-25 | pmid=17495755 | doi=10.1097/01.nrl.0000252943.82792.38 | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=17495755  }} </ref>. [[Visual]] [[aura (symptom)|aura]] is the most common of the neurological events. There is a disturbance of [[vision]] consisting usually of unformed flashes of white and/or black or rarely of multicolored lights ([[photopsia]]) or formations of dazzling zigzag lines ([[scintillating scotoma]]; often arranged like the battlements of a castle, hence the alternative terms "fortification spectra" or "teichopsia"). Some patients complain of [[Blurred vision|blurred]] or shimmering or cloudy [[Visual system|vision]], as though they were looking through thick or smoked glass, or, in some cases, [[tunnel vision]] and [[hemianopsia]].The [[Somatosensory system|somatosensory]] [[aura]] of migraine consists of digitolingual or [[List of medical roots, suffixes and prefixes|cheiro]]-oral [[paresthesia]]s, a feeling of pins-and-needles experienced in the hand and arm as well as in the ipsilateral nose-mouth area. [[Paresthesia]] migrate up the arm and then extend to involve the face, lips and tongue.  Other symptoms of the [[aura]] phase can include [[auditory]] or [[olfactory]] [[hallucinations]], temporary [[dysphasia]], [[vertigo]], [[Paresthesia|tingling]] or [[Paresthesia|numbness]] of the [[face]] and [[extremities]], and [[hypersensitivity]] to [[Somatosensory system|touch]]. Migraine [[aura]] usually precedes the [[headache]], although,  prospective data suggest that most of patients  [[Headache|headache’s]] are present during the aura phase of the migraine attack.  <ref> name="pmid23115208">{{cite journal| author=Hansen JM, Lipton RB, Dodick DW, Silberstein SD, Saper JR, Aurora SK et al.| title=Migraine headache is present in the aura phase: a prospective study. | journal=Neurology | year= 2012 | volume= 79 | issue= 20 | pages= 2044-9 | pmid=23115208 | doi=10.1212/WNL.0b013e3182749eed | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=23115208  }} </ref>
For the 20-30%<ref>Young, William B. and Silberstein, Stephen D., ''Migraine and Other Headaches''. St. Paul, Minn: AAN Press, 2004.</ref><ref>Evans, Randolph W., MD, and Matthew, Ninan T., MD. ''Handbook of Headache'', Second Edition. Philadelphia: Lippincott Williams & Wilkins. 2005.</ref>  of migraineurs who suffer migraine with [[aura]], this aura comprises [[Focal neurologic signs|focal neurological phenomena]] that precede or accompany the attack.  They appear gradually over 5 to 20 minutes and generally last fewer than 60 minutes. Some prospective data suggest that some of patients  [[Headache|headache’s]] are present during the aura phase of the migraine attack.<ref> name="pmid23115208">{{cite journal| author=Hansen JM, Lipton RB, Dodick DW, Silberstein SD, Saper JR, Aurora SK et al.| title=Migraine headache is present in the aura phase: a prospective study. | journal=Neurology | year= 2012 | volume= 79 | issue= 20 | pages= 2044-9 | pmid=23115208 | doi=10.1212/WNL.0b013e3182749eed | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=23115208  }} </ref> The [[pain]] phase of the migraine attack usually begins within 60 minutes of the end of the [[aura]] phase, but it is sometimes delayed up to several hours, and it can be missing entirely.  The [[Aura|auras]] are most often [[visual]], but can also be [[sensory]], [[Developmental dyspraxia|verbal]] or [[Motor skills disorder|motor disturbances]].<ref> name="pmid17495755">{{cite journal| author=Cutrer FM, Huerter K| title=Migraine aura. | journal=Neurologist | year= 2007 | volume= 13 | issue= 3 | pages= 118-25 | pmid=17495755 | doi=10.1097/01.nrl.0000252943.82792.38 | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=17495755  }} </ref>  [[Visual]] [[aura (symptom)|aura]] is the most common of the neurological events. There is a disturbance of [[vision]] consisting usually of unformed flashes of white and/or black or rarely of multicolored lights ([[photopsia]]) or formations of dazzling zigzag lines ([[scintillating scotoma]]; often arranged like the battlements of a castle, hence the alternative terms "fortification spectra" or "teichopsia"). Some patients complain of [[Blurred vision|blurred]] or shimmering or cloudy [[Visual system|vision]], as though they were looking through thick or smoked glass, or, in some cases, [[tunnel vision]] and [[hemianopsia]].The [[Somatosensory system|somatosensory]] [[aura]] of migraine consists of digitolingual or [[List of medical roots, suffixes and prefixes|cheiro]]-oral [[paresthesia]]s, a feeling of pins-and-needles experienced in the hand and arm as well as in the ipsilateral nose-mouth area. [[Paresthesia]] migrate up the arm and then extend to involve the face, lips and tongue.  Other symptoms of the [[aura]] phase can include [[auditory]] or [[olfactory]] [[hallucinations]], temporary [[dysphasia]], [[vertigo]], [[Paresthesia|tingling]] or [[Paresthesia|numbness]] of the [[face]] and [[extremities]], and [[hypersensitivity]] to [[Somatosensory system|touch]].
 
Shown below are images depicting some visual abnormalities that may occur as part of the aura.
 
[[File:Migraine 1.jpg|200px|Zigzag structure]][[File:Migraine 2.jpg|200px|Loss of awareness of local structures]]<br>
[[File:Migraine 3.jpg|200px|Local perception of additional structures]][[File:Migraine 4.jpg|200px|Mostly one-sided loss of perception]]


===Pain Phase===
===Pain Phase===


The [[headache]] of migraine is often but not always unilateral and tends to have a throbbing or pulsatile quality, especially as the [[intensity]] increases.  Not all of these features are necessary. The [[pain]] may be bilateral at the onset or start on one side and become generalized, and usually alternates sides from one attack to the next.  The onset is usually gradual.  The [[pain]] peaks and then subsides, and usually lasts between 4 and 72 hours in adults and 1 and 48 hours in children.  The frequency of attacks is extremely variable, from a few in a lifetime to several times a week, and the average migraineur experiences from one to three [[headache]]s a month.  The head pain varies greatly in intensity.  The pain of migraine is invariably accompanied by other features. [[Nausea and Vomiting|Nausea]] occurs in almost 90 percent of patients, while [[Nausea and vomiting|vomiting]] occurs in about one third of patients.  Many patients experience sensory hyperexcitability manifested by [[photophobia]], [[phonophobia]], [[osmophobia]] and seek a dark and quiet room.  [[Blurred vision]], nasal stuffiness, [[diarrhea]], [[polyuria]], [[pallor]] or [[Perspiration|sweating]] may be noted during the headache phase.  There may be localized [[edema]] of the [[scalp]] or [[face]], scalp [[tenderness]], prominence of a [[vein]] or [[artery]] in the [[temple]], or stiffness and [[tenderness]] of the [[neck]].  Impairment of [[concentration]] and [[mood]] are common.  [[Lightheadedness]], rather than true [[vertigo]] and a feeling of [[Presyncope|faintness]] may occur. The [[extremities]] tend to be cold and moist.
The [[headache]] of migraine is often but not always unilateral and tends to have a throbbing or pulsatile quality, especially as the [[intensity]] increases.  Not all of these features are necessary. The [[pain]] may be bilateral at the onset or may start on one side then becomes generalized.  The [[headache]] usually alternates sides from one attack to the next.  The onset is usually gradual.  The [[pain]] peaks and then subsides, and usually lasts between 4 and 72 hours in adults and 1 and 48 hours in children.  The frequency of attacks is extremely variable, from a few in a lifetime to several times a week, and the average migraineur experiences from one to three [[headache]]s a month.  The head pain varies greatly in intensity.  The pain of migraine is invariably accompanied by other features. [[Nausea and Vomiting|Nausea]] occurs in almost 90 percent of patients, while [[Nausea and vomiting|vomiting]] occurs in about one third of patients.  Many patients experience sensory hyperexcitability manifested by [[photophobia]], [[phonophobia]], [[osmophobia]] and seek a dark and quiet room.  [[Blurred vision]], nasal stuffiness, [[diarrhea]], [[polyuria]], [[pallor]] or [[Perspiration|sweating]] may be noted during the headache phase.  There may be localized [[edema]] of the [[scalp]] or [[face]], scalp [[tenderness]], prominence of a [[vein]] or [[artery]] in the [[temple]], or stiffness and [[tenderness]] of the [[neck]].  Impairment of [[concentration]] and [[mood]] are common.  [[Lightheadedness]], rather than true [[vertigo]] and a feeling of [[Presyncope|faintness]] may occur. The [[extremities]] tend to be cold and moist.


===Postdrome Phase===
===Postdrome Phase===


The patient may feel tired, "washed out", irritable, or listless and may have impaired concentration, scalp tenderness or mood changes. Some people feel unusually refreshed or euphoric after an attack, whereas others note depression and [[malaise]]. Often, some of the minor headache phase symptoms may continue, such as loss of appetite, photophobia, and lightheadedness.
The effects of migraine may persist for some days after the main headache has ended; this is called the migraine [[postdrome]]. Many report a sore feeling in the area where the migraine was, and some report impaired thinking for a few days after the headache has passed. The patient may feel tired or "hung over" and have head pain, cognitive difficulties, gastrointestinal symptoms, mood changes, and weakness.<ref name="pmid16426278">{{Cite journal|author=Kelman L |title=The postdrome of the acute migraine attack |journal=Cephalalgia |volume=26 |issue=2 |pages=214–20 |date=February 2006 |pmid=16426278 |doi=10.1111/j.1468-2982.2005.01026.x}}</ref> According to one summary, "Some people feel unusually refreshed or euphoric after an attack, whereas others note depression and [[malaise]]."<ref>{{cite book |author=Halpern, Audrey L.; Silberstein, Stephen D. |chapter=Ch. 9: The Migraine Attack—A Clinical Description |chapterurl=http://www.ncbi.nlm.nih.gov/books/NBK7326/ |editor=Kaplan PW, Fisher RS |title=Imitators of Epilepsy |publisher=Demos Medical |location=New York |year=2005 |isbn=1-888799-83-8 |pages= |url=http://www.ncbi.nlm.nih.gov/books/NBK7321/ |edition=2 |id=NBK7326}}</ref>
 
==Severity of Pain==
The [[International Headache Society]] defines intensity of [[pain]] according to the following:<ref name="pmid14979299p150">{{cite journal |author=Headache Classification Subcommittee of the International Headache Society |title=The International Classification of Headache Disorders: 2nd edition |journal=Cephalalgia : an international journal of headache |volume=24 Suppl 1 |issue= |pages=150 |year=2004 |pmid=14979299 |doi=10.1111/j.1468-2982.2004.00653.x|}} [http://www.i-h-s.org/upload/ct_clas/ihc_II_main_no_print.pdf Complete supplement online] (see page 150)</ref>
 
* '''0 no pain'''
* '''1 mild pain''' 'does not interfere with usual activities'
* '''2 moderate pain''' 'inhibits, but does not wholly prevent usual activities'
* '''3 severe pain''' 'prevents all activities'


==References==
==References==
Line 30: Line 41:
{{WH}}
{{WH}}
{{WS}}
{{WS}}
[[Category:Needs overview]]
[[Category:Needs overview]]
[[Category:Migraine]]
[[Category:Migraine]]
[[Category:Primary care]]
[[Category:Neurology]]
[[Category:Neurology]]
[[Category:Signs and symptoms]]
[[Category:Emergency medicine]]
[[Category:Emergency medicine]]
[[Category:Disease]]
[[Category:Disease]]
[[Category:Headaches]]
[[Category:Headaches]]
[[Category:Head and neck]]
[[Category:Head and neck]]

Latest revision as of 22:44, 29 July 2020

Migraine Microchapters

Home

Patient Information

Overview

Historical Perspective

Classification

Pathophysiology

Triggers

Differentiating Migraine from other Diseases

Epidemiology and Demographics

Risk Factors

Natural History, Complications and Prognosis

Diagnosis

History and Symptoms

Physical Examination

Laboratory Findings

CT

MRI

Treatment

Medical Therapy

Secondary Prevention

Cost-Effectiveness of Therapy

Future or Investigational Therapies

Case Studies

Case #1

Migraine history and symptoms On the Web

Most recent articles

Most cited articles

Review articles

CME Programs

Powerpoint slides

Images

American Roentgen Ray Society Images of Migraine history and symptoms

All Images
X-rays
Echo & Ultrasound
CT Images
MRI

Ongoing Trials at Clinical Trials.gov

US National Guidelines Clearinghouse

NICE Guidance

FDA on Migraine history and symptoms

CDC on Migraine history and symptoms

Migraine history and symptoms in the news

Blogs on Migraine history and symptoms

Directions to Hospitals Treating Migraine

Risk calculators and risk factors for Migraine history and symptoms

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Overview

The signs and symptoms of migraine vary among patients. Therefore, what a patient experiences before, during and after an attack cannot be defined exactly. The four phases of a migraine attack listed below are common but not necessarily experienced by all migraine sufferers. Additionally, the phases experienced and the symptoms experienced during them can vary from one migraine attack to another in the same patient: (1) the prodrome, which occurs hours or days before the headache, (2) the aura, which immediately precedes the headache, (3) the pain phase, also known as headache phase and (4) the postdrome phase.

History and Symptoms

Prodrome Phase

Prodromal symptoms occur in 40 to 60% of migraineurs. This phase is characterized by the occurrence of vegetative or affective symptoms as early as 24 to 48 hours prior the beginning of the migraine attacks. The typical symptoms include altered mood, irritability, depression or euphoria, fatigue, yawning, excessive sleepiness, craving for certain food (e.g., chocolate), muscle stiffness (especially in the neck), constipation, diarrhea or increased urination. The prodrome phase helps the patient or observant family to predict the occurrence of a new migraine episode.[1]

Aura Phase

For the 20-30%[2][3] of migraineurs who suffer migraine with aura, this aura comprises focal neurological phenomena that precede or accompany the attack. They appear gradually over 5 to 20 minutes and generally last fewer than 60 minutes. Some prospective data suggest that some of patients headache’s are present during the aura phase of the migraine attack.[4] The pain phase of the migraine attack usually begins within 60 minutes of the end of the aura phase, but it is sometimes delayed up to several hours, and it can be missing entirely. The auras are most often visual, but can also be sensory, verbal or motor disturbances.[5] Visual aura is the most common of the neurological events. There is a disturbance of vision consisting usually of unformed flashes of white and/or black or rarely of multicolored lights (photopsia) or formations of dazzling zigzag lines (scintillating scotoma; often arranged like the battlements of a castle, hence the alternative terms "fortification spectra" or "teichopsia"). Some patients complain of blurred or shimmering or cloudy vision, as though they were looking through thick or smoked glass, or, in some cases, tunnel vision and hemianopsia.The somatosensory aura of migraine consists of digitolingual or cheiro-oral paresthesias, a feeling of pins-and-needles experienced in the hand and arm as well as in the ipsilateral nose-mouth area. Paresthesia migrate up the arm and then extend to involve the face, lips and tongue. Other symptoms of the aura phase can include auditory or olfactory hallucinations, temporary dysphasia, vertigo, tingling or numbness of the face and extremities, and hypersensitivity to touch.

Shown below are images depicting some visual abnormalities that may occur as part of the aura.

Zigzag structureLoss of awareness of local structures
Local perception of additional structuresMostly one-sided loss of perception

Pain Phase

The headache of migraine is often but not always unilateral and tends to have a throbbing or pulsatile quality, especially as the intensity increases. Not all of these features are necessary. The pain may be bilateral at the onset or may start on one side then becomes generalized. The headache usually alternates sides from one attack to the next. The onset is usually gradual. The pain peaks and then subsides, and usually lasts between 4 and 72 hours in adults and 1 and 48 hours in children. The frequency of attacks is extremely variable, from a few in a lifetime to several times a week, and the average migraineur experiences from one to three headaches a month. The head pain varies greatly in intensity. The pain of migraine is invariably accompanied by other features. Nausea occurs in almost 90 percent of patients, while vomiting occurs in about one third of patients. Many patients experience sensory hyperexcitability manifested by photophobia, phonophobia, osmophobia and seek a dark and quiet room. Blurred vision, nasal stuffiness, diarrhea, polyuria, pallor or sweating may be noted during the headache phase. There may be localized edema of the scalp or face, scalp tenderness, prominence of a vein or artery in the temple, or stiffness and tenderness of the neck. Impairment of concentration and mood are common. Lightheadedness, rather than true vertigo and a feeling of faintness may occur. The extremities tend to be cold and moist.

Postdrome Phase

The effects of migraine may persist for some days after the main headache has ended; this is called the migraine postdrome. Many report a sore feeling in the area where the migraine was, and some report impaired thinking for a few days after the headache has passed. The patient may feel tired or "hung over" and have head pain, cognitive difficulties, gastrointestinal symptoms, mood changes, and weakness.[6] According to one summary, "Some people feel unusually refreshed or euphoric after an attack, whereas others note depression and malaise."[7]

Severity of Pain

The International Headache Society defines intensity of pain according to the following:[8]

  • 0 no pain
  • 1 mild pain 'does not interfere with usual activities'
  • 2 moderate pain 'inhibits, but does not wholly prevent usual activities'
  • 3 severe pain 'prevents all activities'

References

  1. Kelman L (2004). "The premonitory symptoms (prodrome): a tertiary care study of 893 migraineurs". Headache. 44 (9): 865–72. doi:10.1111/j.1526-4610.2004.04168.x. PMID 15447695.
  2. Young, William B. and Silberstein, Stephen D., Migraine and Other Headaches. St. Paul, Minn: AAN Press, 2004.
  3. Evans, Randolph W., MD, and Matthew, Ninan T., MD. Handbook of Headache, Second Edition. Philadelphia: Lippincott Williams & Wilkins. 2005.
  4. name="pmid23115208">Hansen JM, Lipton RB, Dodick DW, Silberstein SD, Saper JR, Aurora SK; et al. (2012). "Migraine headache is present in the aura phase: a prospective study". Neurology. 79 (20): 2044–9. doi:10.1212/WNL.0b013e3182749eed. PMID 23115208.
  5. name="pmid17495755">Cutrer FM, Huerter K (2007). dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=17495755 "Migraine aura" Check |url= value (help). Neurologist. 13 (3): 118–25. doi:10.1097/01.nrl.0000252943.82792.38. PMID 17495755.
  6. Kelman L (February 2006). "The postdrome of the acute migraine attack". Cephalalgia. 26 (2): 214–20. doi:10.1111/j.1468-2982.2005.01026.x. PMID 16426278.
  7. Halpern, Audrey L.; Silberstein, Stephen D. (2005). "Ch. 9: The Migraine Attack—A Clinical Description". In Kaplan PW, Fisher RS. Imitators of Epilepsy (2 ed.). New York: Demos Medical. ISBN 1-888799-83-8. NBK7326.
  8. Headache Classification Subcommittee of the International Headache Society (2004). "The International Classification of Headache Disorders: 2nd edition". Cephalalgia : an international journal of headache. 24 Suppl 1: 150. doi:10.1111/j.1468-2982.2004.00653.x. PMID 14979299. Complete supplement online (see page 150)

Template:WH Template:WS