Hemiplegic Migraine Defined
Hemiplegic Migraine (HM) is a rare, neurological disease. HM is classified as migraine with aura accompanied by motor weakness. When a hemiplegic migraine attack occurs, the person can experience a variety of symptoms ranging in severity and lasting in duration from a few minutes to months.
Symptoms can include visual disturbances, sensory loss, weakness to paralysis on one-side of the body, confusion, speech difficulty, impaired consciousness, coma, memory loss, as well as several other symptoms.
Familial Hemiplegic Migraine
Familial Hemiplegic Migraine (FHM) is a variation of Hemiplegic Migraine where at least one first-degree or second-dgree relative also has Hemiplegic Migraine.
Currently, there are three subtypes of FHM: FHM1-FM3. In FHM1 chromosome 19 has a mutation in the CACNA1A gene. In FHM2 chromosome 1 has a mutation on the ATP1A2 gene. In FM3 chromosome 2 has a mutation on SCN1A gene.
Sporadic Hemiplegic Migraine
Sporadic Hemiplegic Migraine (SHM) is a variation of Hemiplegic Migraine. Unlike Familial Hemiplegic Migraine (FHM), the patient does not have first-degree or second-degree relatives with Hemiplegic Migraine.
Symptoms
What are the symptoms of Hemiplegic Migraine?
Symptoms can include visual disturbances, sensory loss, weakness to paralysis on one-side of the body, confusion, speech difficulty, impaired consciousness, coma, memory loss, as well as several other symptoms.
Source: http://hemiplegicmigraine.org/
Here's an other article I've stumbled on today. Helpful and easy to understand if you want to know more about HM (Hemiplegic Migraine): http://www.livestrong.com/article/178017-what-is-a-hemiplegic-migraine/
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