(redirected from migrainous)
Also found in: Dictionary, Thesaurus, Medical.


(mī`grān), headache characterized by recurrent attacks of severe pain, usually on one side of the head. It may be preceded by flashes or spots before the eyes or a ringing in the ears, and accompanied by double vision, nausea, vomiting, or dizziness. The attacks vary in frequency from daily occurrences to one every few years.

Migraine affects women three times as often as men and is frequently inherited. Many disturbances, such as allergy, temporary swelling of the brain, and endocrine disturbances, have been suspected of causing some varieties of the disorder. Although the exact cause is unknown, evidence suggests a genetically transmitted functional disturbance of cranial circulation. The pain is believed to be associated with constriction followed by dilation of blood vessels leading to and within the brain.

Untreated attacks may last for many hours. Mild attacks are often relieved by common sedatives such as aspirin or codeine. Severe attacks may be treated with any of a variety of drugs, including a group called triptans, by injection or in the form of pills or nasal sprays. Certain beta-blockers, antiepileptic drugs, or tricyclic antidepressants may reduce the recurrence of migraines in some patients. Biofeedback is used in training people to recognize the warning symptoms and to practice control over the vascular dilation that initiates attacks.



(also hemicrania), a condition characterized by periodic headaches, usually localized in one half of the head. Women are most often affected by migraines, and in the majority of cases there is a hereditary tendency. The condition usually begins to manifest itself during puberty.

Migraines originate with changes in the tonus of intracranial and extracranial vessels. It is conjectured that first there is a spasm in the vessels and then a decrease in their tonus. As a result, the vessels dilatate abnormally. The headache attacks are accompanied by nausea, vomiting, and photophobia. Other symptoms include pallor or flushing, chilled hands and feet, weakness, shivering, and yawning. Patients usually complain of seeing bright flashes and zigzag lines; sometimes there is reduction or dimness of vision (ophthalmic migraine). Other symptoms are numbness of or tingling sensations in the extremities and, sometimes, the face and tongue. The symptomatic migraine is an indication of organic brain disease—for example, tumor, or vascular aneurysm.

Treatment entails normalization of vascular tonus, sedatives, and physical therapy.


Davidenkov, S. N., and A. M. Godinova. “K voprosu o nozologicheskikh granitsakh migrenei.” In Ocherki klinicheskoi nevrologii, fasc. 2. [Leningrad] 1964. [Collection of works.]



Recurrent paroxysmal vascular headache, commonly having unilateral onset and often associated with nausea and vomiting.


a throbbing headache usually affecting only one side of the head and commonly accompanied by nausea and visual disturbances
References in periodicals archive ?
Migrainous vertigo: Prevalence and impact on quality of life.
The "flashing lights" associated with migrainous disorders differ from those of vitreo-retinal traction in a number of respects, as described in Table 1.
LOS ANGELES -- Visual disturbances reported by patients after foam sclerotherapy are migrainous aura and should not be confused with cerebrovascular events, a small, prospective, multicenter study suggests.
There are several factors that may aid in the diagnosis of migrainous hemiplegia.
Although total average headache severity was not significantly improved by topiramate, peak severity decreased substantially, suggesting that topiramate reduces the migrainous component of headaches, Dr.
A "fixed-site" injection approach was used for those with migraine or migrainous features, a "follow-the-pain" approach was used for those with tension features, and a combination of both was used for patients with both headache features.
Migrainous aura may be confused with TIA or stroke, especially when it is prolonged and, on rare occasions, ischemic stroke can complicate migraine.
Patients with NCC present with a variety of seizure types from focal to generalized, and headaches may be migrainous.
Don't forget that the branch in The Almanac Branch is both the ailanthus branch where Grace Brush's migrainous "light people" dance, but also the nefarious branch of her father's corporation.
About 75% of patients have a history of frank migraine or migrainous disorder, including 60% who have experienced severe migraine attacks, according to International Headache Society criteria.
Use of International Headache Society criteria showed that 80% of the 3,038 patients had migraine with or without aura, 8% had migrainous headaches, 8% had tension-type headache, and 4% had other headache types.
7) It would thus not be surprising if school-age children who saw the program, even if they did not see the segment in question, recalled "minor symptoms" of migrainous origin, such as nausea, headache, blurred vision, or vomiting if specifically asked by authority figures; with an estimated 4% of children having migraine, (8) it is similarly not surprising that many would do so.