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S EIZURE RECOGNITION , SEIZURE

TYPES , F IRST A ID AND S AFETY

Charuta Joshi MBBS, FRCPC

Director of pediatric epilepsy

UIHC

Objectives

At the end of this lecture the participants will be able to:

Define a seizure

Recognize different types of seizures

Define epilepsy

Know basic steps involved in seizure first aid

Name 2 different medications used on the site to treat seizures in the prehospital setting

Be familiar with ketogenic diet as therapy for seizures

What is a seizure

Seizure recognition

• A clinical manifestation of :

• Abnormal

• Excessive

• Paroxysmal

• Electrical discharge in neurons

Seizure recognition

• Stereotyped

• Repetitive

• If unsure video tape events

• Ask pediatrician to see

Seizure recognition

• Spectrum of findings

Complex partial seizures

Generalized seizures

Simple partial seizures

Seizure recognition simple partial seizures

• Localization

Seizure recognition

Generalized

• Absence

• Myoclonic

• Tonic

• Generalized tonic clonic

How important is it to be sure about a seizure

First seizure clinic results

• 127 children

• 94 were given diagnosis of epilepsy in first seizure clinic

• 36 had suffered at least one previous seizure

( 15 unrecognized by family as a seizure)

• 31 – non epileptic events

• Unclassified in 2

Differential diagnosis

Investigations after a first unprovoked seizure

Investigations

Yield of neuroimaging

(Shinnar et al 2001)

What is epilepsy

• Tendency to have recurrent, unprovoked seizures

• 2 or more unprovoked seizures separated by

24 hours

Questions parents have after seizures

• Will it happen again ?

• How long do I have to wait for a recurrence ?

• Could my child die during a recurrence?

• Could there be brain damage due to recurrence

• If medication treatment is delayed will there be change in long-term chance of permanent remission?

Recurrence risks

• Recurrence rate at 2 years 40-50%

• Half the recurrences are within 6 months of initial seizure

• 80% of 5 year recurrence risk stabilizes by 2 years out

Risk factors for recurrence

• Remote symptomatic etiology

• Abnormal EEG ( any spikes, generalized spike wave, focal or generalized slowing)

• Occurrence of seizure during sleep state (increases chance of recurrence)= lower morbidity than during daytime seizure

• Risk of recurrence after 2 seizures is 80%

Do you treat a first seizure

• Treatment reduces the risk of a second seizure by 50% at 2 years

• Immediate treatment DOES NOT reduce risk of long term seizures

• Treated and untreated groups have a 64% chance of 5 year remission at 10 years (MESS study)

• Risk of toxicity, allergic reaction, cognitive side effects

Risks of morbidity/ mortality due to seizures- could my child die??

• 692 children in Nova Scotia ( Camfield 2002)

• Followed =20 years

• 26 deaths

• 1 from status

• 1 from SUDEP as an adult at age 22 years

Could my child die

• Dutch study of childhood epilepsy ( Callenbach 2001)

• 472 children followed for 5 years

• 9 deaths

• None from epilepsy

• Connecticut study ( Berg 2004)

• 613 children followed for 7.8 years

• 13 deaths

• 1=status

• 1=SUDEP

When does immediate treatment matter

• When risks of recurrent seizures outweigh benefits of withholding treatment ( adults)

• Cyanotic congenital heart disease in a child

Seizure first aid

• ABCs

• Stay calm

• Don’t leave patient alone

• Lateral position if possible

• Don’t restrain

• Nothing in mouth

• Call 911

Seizure safety

• Maximize quality of life

• Water safety

• Safety on roads

• High structures

• Medic alert, seizure beds, seizure dogs, baby monitors

Seizure precautions

• Regular sleep

• Alcohol

• Infections

• Photic stimulation

• Substances of abuse

Sports participation has not been shown to increase risk of seizures

Prehospital treatment of seizures

Operational definition of status

0

Most seizures stop

5

Optimum time to start therapy

15

Time definition of convulsive status epilepticus

30

Medications used for prehospital treatment

• Diazepam

• Midazolam

• Lorazepam

Prehospital treatment

midazolam

Lorazepam

• 2mg/ml Intensol

• Indicated for anxiety

Faves…

Moving on to a different discussion now…

Ketogenic diet

• UIHC= The only center in the state

• 30-40 active patients

• Dedicated dietician

Karla Mracek

• Dedicated ARNP

Tiffany Rickertsen

Historical anecdotes

History

• Mac Fadden 1899- magazine

Physical Culture

• Medical profession= Organized fraud

• People who follow MacFadden’s rules would live to 120 years

• Since much of the body’s energy is wasted in digesting food, if no food is provided, more energy can be applied to recovering health

• Dr Conklin-osteopath in

Battlecreek , Mi

• Used diet in epilepsy

Mr MacFadden

• Physical culture

Historical anecdotes

• Conklin’s work( intestinal epilepsy- toxin release from glands= seizures)

• Conklin’s fast 18-21 days ( or as long as they could stand it)

Historical anecdotes

• Dr Geyelin worked at Johns Hopkins= confirmed Conklin's findings

• Dr BJ Wilder= fat can be used to break fast= no seizures

Charlie foundation

Charlie Foundation

• Mr Jim Abrahams

• Sought help from Johns

Hopkins for his son Charlie

• Seizure free today after several medications and neurologists

Movie

Since then…

Indications

Mechanisms of action

Not exactly known

• Ketone bodies= antiepilepsy properties

• PUFAs= membrane stabilization

• Antioxidative/ antiinflammatory

• Uncoupling of oxidative phosphorylation( better energy utilization)

Types of ketogenic diet

• Classic ketogenic diet= 4:1 ratio

• MCT oil diet ( less restrictive)

• Modified Atkins diet=15-20 gm carbs/day

• Low Glycemic index diet=60 gm carbs/day

Ketogenic diet

Most kids not fat… Results

• 50-60% improve

• Almost 100% improve –

Doose , GLUT1

Contraindicated

Fatty acid oxidation defect

Thank You !!

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