Update

Thanks for all the kind emails and comments. Your concern is so awesome, and I appreciate you taking the time to let us know you are thinking about us. Note that Gillian's reaction to fever is not typical (3-5% of kids react this way to sharp increases in body temperature). She is better today, and her fever broke twice last night (she woke up crying and and soaking wet with sweat). No serious temps today, just a good old fashioned runny nose and some clinginess (which is a welcome change from yesterday and the night before). For your questions about febrile seizures, here is an excerpt (from Medline):

Definition
A febrile seizure is a convulsion in a child triggered by a fever. Such convulsions occur without any underlying brain or spinal cord infection or other neurologic cause.

Causes
About 3-5% of otherwise healthy children between the ages of 9 months and 5 years will have a seizure caused by a fever. Toddlers are most commonly affected. There is a tendency for febrile seizures to run in families. Most occur well within the first 24 hours of an illness, not necessarily when the fever is highest (although hers happened at ~105, so it was high). The seizure is often the first sign of a fever.

The first febrile seizure is one of life's most frightening moments for parents. Most parents are afraid that their child will die or have brain damage. Thankfully, simple febrile seizures are harmless. There is no evidence that simple febrile seizures cause death, brain damage, epilepsy, mental retardation, a decrease in IQ, or learning difficulties.

Most febrile seizures are triggered by fevers from viral upper respiratory infections, ear infections, or roseola. Meningitis causes less than 0.1% of febrile seizures but should ALWAYS be considered, especially in children less than one year old or those who still look ill when the fever comes down.

A simple febrile seizure stops by itself within a few seconds to 10 minutes, usually followed by a brief period of drowsiness or confusion. Anticonvulsant medicines are generally not needed.

A complex febrile seizure is one that lasts longer than 15 minutes, occurs in an isolated part of the body, or recurs during the same illness.

About a third of children who have had a febrile seizure will have another one with a subsequent fever. Of those who do, about half will have a third seizure. Few children have more than three febrile seizures in their lifetime. (hopefully we'll be done at 2 of them-could we be so lucky?)

If there is a family history, if the first seizure happened before 12 months of age, or if the seizure happened with a fever below 102, a child is more likely to fall in the group that has more than one febrile seizure.

Symptoms

A febrile seizure may be as mild as the child's eyes rolling or limbs stiffening. Quite often a fever triggers a full-blown convulsion that involves the whole body.

Febrile seizures may begin with the sudden sustained contraction of muscles on both sides of a child's body -- usually the muscles of the face, trunk, arms, and legs. A haunting, involuntary cry or moan often emerges from the child, from the force of the muscle contraction (I had never heard Gillian make a sound like that, hence running, not walking to her room). The contraction continues for seemingly endless seconds, or tens of seconds. The child will fall, if standing, and may pass urine.

He may vomit. He may bite his tongue. The child may not be breathing, and may begin to turn blue.

Finally, the sustained contraction is broken by repeated brief moments of relaxation -- the child's body begins to jerk rhythmically. The child is unresponsive to the parent's voice.

Febrile seizures are different than tremors or disorientation also seen with fevers. The movements are the same as in a grand mal seizure.

Exams and Tests

A febrile seizure may be diagnosed by the health care provider when a grand mal seizure occurs in a child with a fever and no prior history of seizure disorders (epilepsy). In infants and young children, it is important to rule out other causes for a first-time seizure, especially meningitis.

In a typical febrile seizure, the examination usually shows no abnormalities other than the illness causing the fever. Typically, a full seizure workup including an EEG, head CT, and lumbar puncture (spinal tap) is not warranted.

However, the child's condition must meet strict medical criteria if these tests are to be avoided:

The child must be developmentally normal.
The seizure must be generalized (not focal), meaning more than one part of the body is involved.
The seizure may not last longer than 15 minutes.
The child cannot have had more than one febrile seizure in 24 hours.
The child's neurologic exam performed by a health care provider must be normal to be called a simple febrile seizure.
If all of these criteria are met, no further studies are likely to be required.

Treatment

During the seizure, leave your child on the floor. You may want to slide a blanket under him if the floor is hard. Move him only if he is in a dangerous location. Remove objects that may injure him. Loosen any tight clothing, especially around the neck. If possible, open or remove clothes from the waist up. If he vomits, or if saliva and mucus build up in the mouth, turn him on his side or stomach. This is also important if it looks like the tongue is getting in the way of breathing.

DO NOT try to force anything into his mouth to prevent him from biting the tongue, as this increases the risk of injury. DO NOT try to restrain your child or try to stop the seizure movements.

Focus your attention on bringing the fever down. Inserting an acetaminophen suppository into the child's rectum is a great first step, if you have some. DO NOT try to give anything by mouth. Apply cool washcloths to the forehead and neck. Sponge the rest of the body with lukewarm (not cold) water. Cold water or alcohol may make the fever worse. After the seizure is over and your child is awake, give the normal dose of ibuprofen or acetaminophen.

After the seizure, the most important step is to identify the cause of the fever.

Outlook (Prognosis)

Most children outgrow febrile seizures by age 5.

A small number of children who have had a febrile seizure go on to develop epilepsy, but not because of the febrile seizures. Children who would develop epilepsy anyway will sometimes have their first seizures during fevers. These are usually prolonged, complex seizures.

Previous neurologic problems and a family history of epilepsy also make future epilepsy more common. The number of febrile seizures is not related to future epilepsy.

Anyway, if there is a next time, I am now seasoned at this, and I won't be frantically calling 911. I know what it looks like, I know I have to let it take its course, and I know that even though it looks like it is really hurting her, it won't and she won't remember it. If any of you are unfortunate to experience this, maybe being aware of what is happening through our experience will help keep you calm.