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Migraine patient handoutMigraine – More than a Headache
Migraine is a common clinical problem characterized by episodic attacks of head pain and associated symptoms such as nausea, sensitivity to light,
sound, or head movement. It is general y thought of as a headache problem, but
it has become apparent in recent years that many patients suffer symptoms from
migraine who do not have severe headaches as a dominant symptom. These
patients may have a primary complaint of dizziness, of ear pain, of ear or head
ful ness, "sinus" pressure, and even fluctuating hearing loss. Fortunately,
treatment regimens long established for the treatment of "classic" migraine
headaches are general y effective against these "atypical" symptoms of migraine.
How Common is Migraine?
There are currently 28 mil ion Americans with "classic" migraine headaches. In a room with 100 people, 13 are likely to have migraine. This is as common as diabetes and asthma combined. The number of people suffering with atypical forms of migraine is unknown. Females are 3 times more likely to have migraine than males. Although any person can have migraine at any age, migraine is most common between ages 30 and 50. The peak incidence of migraine in females occurs at 35 years of age—at this age, 28% of al females have migraine headaches. The peak incidence of migraine in men occurs at 30 years of age—at this age, about 10% of al males have migraine headaches. Migraine is a lifelong problem. It may start in childhood and disappear and reappear in new forms throughout an individual's life. In general, there is a decrease in headache intensity and an increase in the incidence of atypical symptoms of migraine (vertigo, ear pain, bowel symptoms, etc) as patients mature. Surveys show that only 48% of people with migraine headaches have had a diagnosis and are being treated for their headaches. Unfortunately, only 29% of
US migraine sufferers are very satisfied with their treatment. This is usual y a
reflection of a lack of understanding of the nature of migraine and its treatment,
or lack of commitment to effective treatments. We hope this material wil help you
to achieve better control of your migraine symptoms, whatever they are, and
improve your quality of life.
How are People with Migraine Different?
Migraine is an inherited problem of ion channels in the brain. This may result in what is best described as a "sensitive brain". Most individuals exposed to loud noise, bright light, or excessive motion can adapt to these strong stimuli within minutes, but in the brain of a migraineur, the strength of the stimulus continues to grow until a migraine crisis occurs. This lack of ability to adapt to strong sensory stimulation helps us understand why so many patients have migraine headache or other migraine symptoms that can be provoked by bright light, excessive noise, strong smel s, excessive motion, and painful stimuli.
What Happens During a Migraine Attack?
Abnormal activity may occur in, on, and around the brain during a migraine attack. Hyperactivity deep in the brainstem and other brain centers that control pain and other sensations in the head has been found on brain imaging studies in patients having migraine attacks. This means a person having a migraine who senses pain, motion, or sound wil tend to have an exaggerated, distorted experience of the pain, motion, or sound that may be so intense that it is difficult to tolerate. The patient may become so sensitive that he has no choice but to withdrawal to a quiet, dark place and sleep until the episode has passed. Patients also have altered electrical activity at the surface of the brain during a migraine episode. This most commonly occurs over the vision areas of the brain and may result in unusual visual phenomena such as the appearance of spark-like bursts, wavy lines, blind spots, or even complete visual loss in rare cases. Abnormal cortical brain activity over other regions of the cortex can result in temporary confusion, inability to speak, numbness, or even paralysis of any part of the body. These symptoms which occur at the surface of the brain typical y are brief, lasting no longer than 20 minutes. Painful throbbing headache may be associated with sensitization of the blood vessels around the brain by abnormal chemicals which themselves irritate
and cause the blood vessels to hurt.
What is a Migraine Trigger?
A migraine trigger is any environmental, dietary, or physiologic factor that can provoke migraine activity in the brain.
Examples of environmental triggers include odors, bright lights, noise, and
other excessive sensory stimuli. Painful stimuli that trigger migraine usual y occur in the head and neck. The most common of these are neck injury and spasm, temporomandibular joint pain, and sinus pain. 40% of migraineurs are affected by weather changes. The mechanism of this trigger is not currently understood.
There are hundreds of potential food triggers for migraine. Comprehensive lists of foods which may contribute to triggering migraine can easily be found on the Web. In general, these foods fal into two main categories: 1) byproducts of food aging and 2) foods with chemicals similar to neurotransmitters our brains use. Byproducts of food aging are found in fermented products like red wine, aged cheeses, and yeast in fresh bread and yogurt. Foods with chemicals similar to our own neurotransmitters which may aggravate migraine are coffee, chocolate, MSG, and the nitrates used as preservatives in many of our prepackaged foods. Food triggers are not the result of al ergy, but are direct chemical sensitivities. There is a common misconception that if a person is sensitive to a food item, they wil know it, because they wil have migraine symptoms within an hour of eating the particular food item. In fact, some effects may come immediately or sometimes days later. Added to this confusion is the reality that many real food triggers may not cause migraine alone, but only in combination with other partial triggers, which together may provoke an attack of migraine headache or symptoms. For example, some migraineurs can eat chocolate or red wine alone with no problem, but wil suffer a migraine attack if chocolate and red wine are taken together. We general y recommend an initial dietary trial which avoids only the most common migraine triggers. If good results are not achieved within a few weeks, a comprehensive diet which eliminates al potential migraine triggers is recommended. It may take 6-10 weeks for a patient suffering from severe and debilitating migraine symptoms to respond, but most do. After an improvement in symptoms is achieved, suspect foods can be added to the diet one at a time to see whether they are an important trigger for that patient. Despite the difficulty of this kind of a trial, we have found that even the most severely affected migraineurs tend to respond and are generously rewarded for their efforts.
Perhaps the most common trigger of migraine is stress. Patients
commonly report increased symptoms when they are stressed, fatigued, and suffer lack of sleep. Many other physiologic stresses can also trigger migraine, such as hunger, exercise, and pain. Some patients suffer migraine from sleeping too much, and cannot understand why most of their weekends are ruined by headaches or dizziness. Migraines are commonly triggered by hormone changes, like the drop in estrogen levels before the menstrual period or after menopause. Subtle physiologic stresses, like eye strain, can trigger migraine. It is not uncommon for someone with new-onset headaches to find their eyeglass prescription has changed. Updating the prescription can have dramatic positive results. You wil be asked to consider an eye examination if other obvious triggers are not identified. Other common physiologic triggers include pain from temporomandibular joint dysfunction, neck problems, and sinusitis. Treatment of these underlying
problems can result in dramatic reduction in typical and atypical migraine
Treatment of Migraine
It seems easy to take pain medications or abortive medications such as narcotics or triptans to suppress symptoms, but when taken frequently, these can worsen the problem by causing rebound symptoms more intense than the original attack. It is typical for patients to get themselves into a vicious cycle, resulting in decreased functioning at work and at home with the expected emotional consequences before treatment is sought. The best treatment results wil be obtained by those patients who work to understand what migraine is and how migraine is affecting their lives. This al ows a teamwork approach with the physician and better outcomes. The mainstay of treatment for migraine headache and atypical migraine symptoms is trigger identification and avoidance. This requires education
about migraine triggers and the use of a migraine diary in which the patient is
asked to record their symptoms and the probable trigger for that particular
episode. Unlike many environmental and physiologic triggers, dietary triggers can
be avoided. In general, an attempt to improve lifestyle by reducing stress,
improving sleep habits, and adding regular exercise are beneficial. When done
maximal y, many patients wil obtain near complete freedom from their migraines
with this treatment alone.
At times, symptoms may be so constant that individual events and their triggers cannot be easily identified. In these cases, it may be helpful to give
medications to elevate the threshold above which migraine triggering in the
brain occurs. These may be medications original y used for blood pressure
control, depression, or seizures which have been found to be easily tolerated and
very good at preventing frequent migraine attacks. When this is successful, the
breakthrough attacks which do occur are usual y easily attributed to some
particular trigger or aggravating factor, which can then be avoided. It may take 6-
8 weeks to respond to a medication, and it is not uncommon for a patient to have
to try more than one medication. Patients requiring medications to elevate
migraine threshold can realistical y expect a 50-80% reduction in symptom
intensity and frequency.
If after maximizing the benefits of trigger identification and avoidance and medications to elevate the threshold of migraine, breakthrough headaches are
stil occurring, medications to abort acute attacks may be prescribed. There
are now excel ent medications which can help improve migraine symptoms both
deep in the brain and those painful symptoms associated with sensitized blood
vessels around the brain. These new medications are cal ed triptans. Because
they can cause rebound, they should not be used more than 6-8 times a month.
Doctors' opinions may vary on this.
Some patients wil have occasional severe headaches which can be aborted effectively with triptans without the risk of rebound. These patients
should always be on the lookout for an increase in headache frequency and
intensity that are the first signs of rebound. Long term treatment of acute
headaches with narcotics general y leads to increasing medication needs and
must be considered very cautiously, especial y in patients with histories of
How to Keep a Migraine Diary
Keeping a simple diary may be one of the most important tools you and your physician have for making treatment decisions. It is not necessary to keep extensive notes. In fact, the simpler the record keeping, the better. Use a monthly calendar, preferably a smal one, like a checkbook calendar which you can keep with you. Use two pencils or pens of different color. With one color, mark the days you have headaches. With the other color, mark the days you have dizziness or symptoms other than headache (e.g. lethargy, head ful ness, ear pain). Make a note of any possible physiologic, dietary, or environmental triggers that have been present in the 24 hours prior to your symptoms. Remember to bring your diary with you to your appointments. It wil al ow you and your physician to see your progress at a glance. Unusual Forms of Migraine
As you understand by now migraine is more than a headache. It is a constel ation of symptoms and headache is not necessarily an essential part. It
is extremely important to acknowledge this because although these atypical
symptoms of migraine general y do not respond to abortive medication like the
pain of a migraine headache does, the atypical symptoms can be managed by
careful identification and avoidance of triggers or by taking medication for
prophylaxis of migraine. These migraine symptoms which are not headaches but
which are aggravated by typical migraine triggers are sometimes referred to as
migraine equivalents. Some more common forms are mentioned here.
Cyclical vomiting is general y seen in childhood but may continue into
adult life in some cases. The attacks are characterized by recurrent episodes of
vomiting every 10-15 minutes and which typical y continues for hours after the
episode is triggered. There is no headache. Other patient's may experience
abdominal migraine which presents as a pain in the upper central abdomen.
The common stomachache of childhood is more likely to be caused by migraine
than ingestion of foods which directly irritate the stomach. Periodic diarrhea,
like cyclical vomiting, has symptoms most manifested as recurrent noninfectious
diarrhea. These patient's often undergo extensive abdominal and intestinal
workups for infection or other intrinsic diseases of the bowel which are negative.
It is not unusual for our successful y treated migraine patient's to have such an
improvement in their abdominal symptoms that they are able to discontinue
medications they have been taking chronical y for a diagnosis of irritable bowel
syndrome. Migraine can also be the cause of spontaneous high fevers. This is
especial y common in children who may have no sign of infection that can be
identified by their pediatrician. Many cardiologists and Emergency Room
personnel have encountered patient's with chest pain who have no changes on
the EKG and whose pain does not respond to antacid medication. These
patients's with precordial migraine become wel known to their physicians
because their atypical episodes disappear when they begin taking medications
for prophylaxis of migraine. Migraine equivalents may also manifest as dramatic
mood changes particularly in the form of hyperactivity or irritability or an
overwhelming tendency to very deep sleep that is often diagnosed as
narcolepsy. It is not uncommon for women to experience some of these
migraine equivalent symptoms as a portion of their premenstrual syndrome.
Other migraine equivalents such as vertigo, Meniere's disease, recurrent
BPPV, otalgia "ear pain" and sinus pressure are seen with particular frequency
by otolaryngologists and are described separately below.
Migraine and Meniere's Disease
There is increasing interest among ENT physicians in the connection between migraine and Meniere's disease. Meniere's disease is a disorder of the inner ear characterized by episodic ful ness, tinnitus (ringing), hearing loss, and vertigo whose cause is poorly understood. While the prevalence of migraine in the US population is 13%, the prevalence of migraine in patients with Meniere's disease is 56%, and the prevalence of migraine in patients with bilateral Meniere's disease is 85%. We have recently discovered that the tiny blood vessels in the inner ear are innervated by branches of the same nerve that innervates the intracranial blood vessels severely affected in migraine attacks. Electrical stimulation of this trigeminal nerve has caused fluid changes in the inner ear which could affect it severely enough to cause a problem like Meniere's disease. Many patients with migraine and Meniere's disease who are treated effectively for migraine have experienced an improvement in their Meniere's symptoms. For more information about Meniere's disease, go to http://www.dbi.udel.edu/MichaelTeixidoMD/patientInfo/endolymphatic.html.
Migraine and Vertigo
25% of migraineurs experience vertigo along with their other migraine symptoms. In many patients seen at our balance center, vertigo is the predominant feature of their migraine. We typical y find that they have had more classic migraine headaches at some time in the past, or have a family history of migraine. Migraine symptoms of new onset in a patient with no personal or family history of migraine can also occur. This is particularly common after head injury or whiplash with chronic neck symptoms. Neck symptoms and spasm tend to increase weeks to months after an initial whiplash injury, causing headache and associated episodes of vertigo. These symptoms are general y not associated with pressure in the ear or hearing changes and may originate in the brainstem from faulty central processing of balance information from the inner ears. This may explain why many patients with migraine associated vertigo do not respond to vestibular suppressant medications such as meclizine or diazepam, which work only in the inner ear and vestibular nerves, but not in the brainstem. These patients are often best treated with physical therapy to decrease neck muscle stiffness and pain, medications to decrease neck muscle stiffness and pain, as wel as traditional migraine therapy. Most migraineurs have a lifelong history of motion sickness and can relate a history of motion intolerance that includes car-sickness, sea-sickness, or an
inability to tolerate amusement park rides. A new onset of motion intolerance in
an adult is more commonly associated with migraine activity than any other
Migraine and Otalgia (Ear pain)
Up to 40% of migraineurs report sharp ear pains which last only seconds. These may occur infrequenly and spontaneously between migraine headaches. Ear pain has many causes, including infection and Eustachian tube problems in the ear, TMJ, and referred pain from the extensive lining of the throat. Migraineurs who present to the doctor with ear pains frequently complain that
their ears are hypersensitive to touch, to wind, and to cold. When an
otolaryngologist has ruled out al of these other causes of ear pain in a patient
with a history of migraine, migraine treatment is often effective in eliminating the
Where can I Learn More about Migraine?
Beyond these brief pages, I typical y recommend that my patients read the book, Heal your Headache the 1-2-3 Program by David Buchholz, MD. This book provides a comprehensive diet plan composed completely of foods that do not trigger migraine. It is much easier to fol ow this diet than to be suspicious of every food you have in your cabinet at home or that you see in the supermarket. It also teaches and emphasizes the concepts of rebound and the additive character of migraine triggers. Patients who have severe migraine-related vertigo may not be able to read a whole book because of their condition. They wil benefit greatly from reading the book together with a family member who can help them to stay on track and to understand al the concepts in the book. Those patients who do love to read and who have very atypical manifestations of migraine often find great comfort in the experiences of Oliver
Sacks, MD, in his book, Migraine. Dr. Sacks is an extremely insightful neurologist
with a gift for writing and who himself had migraine at age 2. He has col ected an
astonishing series of patient stories with both common and extremely unusual
symptoms, al attributable to migraine mechanisms.
Treatment Guidelines for Physicians
For treatment we first encourage a strict migraine control diet, eliminating common migraine culprits including chocolate, wines, caffeine, certain cheeses, monosodium glutamate (MSG) as wel as less frequently recognized problem foods containing yeast (yoghurt, sourdough, freshly made bread), nuts, and nut products. We also encourage a regular sleep schedule and aerobic exercise program. Patients are also counseled to avoid vasoconstrictive medications such as psuedoephedrine, and to minimize the use of triptans, which may cause rebound symptoms. When patients fol ow these guidelines and stil have migraine-associated symptoms, we emphasize prophylactic medications in preference to the "quick
fix" agents such as fiorinal, triptans, narcotics, or steroids. Effective prophylactic
medications are chosen based on the patient's other medical problems and
tolerance of side effects. Some suggested regimens fol ow:
Calcium channel blockers: Diltiazem CD 120 mg/day increasing as tolerated
to 240-480 mg total/day, often in two divided doses. Constipation and
hypotension are the most common side effects, but this is often the best-
Antidepressants: Nortriptyline starting at LOW doses (10 mg/day) and slowly
increasing to 50-100 mg at night. Many patients respond to this medication at low
doses (20 mg/day). Higher doses (100-200 mg) may occasional y be needed.
Levels can help guide therapy. Dry mouth and sedation are the most common
side effects. Sedation is usual y not a problem if the medication is taken before
bed. If morning drowsiness is a problem, the medication can be taken earlier in
the evening. An occasional patient wil respond wel to nortriptyline, but
experience increased energy that prevents sleep. In this case, the medication
should be taken in the morning. SSRI agents have less proven benefit in
Beta-blockers: Propranolol LA 60 mg/day increasing as needed up to 160
mg/day. Reactive airway disease and diabetes are the usual contraindications.
Depression may be worsened by beta-blockers. Nadolol has fewer such CNS
side effects; it is started at 20 mg/day and increased as needed up to 120
Anticonvulsants: Sodium valproate 250-500 mg BID (twice daily) is usual y wel
tolerated, but liver function tests and platelets should be monitored. Gabapentin
at a low dose of 300 mg a day, with weekly escalating doses to a first target dose
of 300 mg three times a day (900 mg total). Then it can be increased gradual y
to another target dose of 1800 mg total a day (in 3 divided doses), or until side
effects (usual y sedation) appear. It has the inconvenience of frequent dosing,
but with a low adverse effect profile. Dosing adjustments are necessary for renal
insufficiency, and the medication should not be used in children under 12 years
old. Topiramate (Topamax) has recently been shown to be a very effective
migraine prophylactic agent. It is started at 25 mg PD and increased weekly to a
goal of 100-200 mg BID. Monitoring for metabolic acidosis and nephrolithiasis is
Al patients are cautioned that migraine symptoms often do not respond quickly to these interventions. Great patience is required of the patient and physician as 6-8 weeks of diet changes or the ful dose of any new medication may be needed before benefits are seen. Anxiety, depression, and even panic attacks are frequent accompanying diagnoses in these patients. These diagnoses should be recognized and discussed. The choice of a prophylactic medication may also be influenced by these other conditions. One of the best resources for migraine therapeutics currently available is Lawrence Robbins' Management of Headache and Headache Medications. It very clearly outlines strategies for first line, second line, and combination therapy for migraine and other headache types in an easy-to-use handbook format. BIBLIOGRAPHY
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Instructions for Use Erythropoietin ELISA Enzyme immunoassay for the quantitative determination of Erythropoietin (EPO) in human serum. Flughafenstrasse 52a Phone: +49 (0)40-53 28 91-0 D-22335 Hamburg, Germany Fax: +49 (0)40-53 28 91-11 Erythropoietin ELISA (NM56011) INTENDED USE