Epilepsy & its
Management
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1. Epilepsy
2. Epidemiology
3. Aetiology
4. Classification
Outline
5. 5. Pathophysiology
6. Signs and symptoms
7. Management
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Epilepsy
Epilepsy is a brain disorder in which
clusters of nerve cells, or neurons, in the
brain sometimes signal abnormally.
It produces changes
in a person's
movement,
behavior or
consciousness
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Epidemiology
About 1% of people worldwide
(65 million) have epilepsy, and nearly
80% of cases occur in developing
countries.
More than 2 million people in the
United States -- about 1 in 100 -- have
experienced an unprovoked seizure or
been diagnosed with epilepsy.
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Aetiology
The cause is unknown in 70% of cases
 Brain Trauma (e.g. injury, stroke)
 Brain Lesions (e.g. tumors)
 Poisoning (e.g. lead)
 Infections of the brain (e.g.
meningitis)
Chronic alcohol/ drug abuse
Genetic causes
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Classification
1. Common generalized seizure
 Tonic-clonic seizure– 1-2 min
 Absence seizure– 3-5 sec
 Myoclonic seizures– Several min
 Atonic seizure
 Intractable seizure
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Cont.…
2. Common partial seizures
 Simple partial seizure– 90 sec
 Complex partial– 1-2 min
 Secondary generalization--
 Status epilepticus– 30 min
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Nerve impulse propagates in the brain
in a synchronous manner and for that
the electrical potential reaches to zero.
Pathophysiology
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Blackout
Episodes of staring
Involuntary movement of arms and
legs
Odd sounds
Odd sensations
Visual hallucinations
Emotional changes
 Muscle spasms
Signs and symptoms
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1. Medications
Hydantoins: phenytoin
Barbiturates: phenobarbitone
Iminostilbene: carbamazepine
Succinimide: ethosuximide
GABA transaminase inhibitiors:
valproic acid
Benzodiazepines: diazepam
GABA analouges: vigabatrin
Management
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Mechanism of action
 Na+ , Ca++
Adverse effects
 Epigastric pain
 Ataxia
 Anorexia
Dose
20mg/kg
Phenytion
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Mechanism of action:
Na+
Adverse effects :
Vertigo
Blurring of vision
Dizziness
Dose :
200-400 mg
Carbamazepine
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Mechanism of action :
Ca++
Adverse effects:
Lethargy,
Euphoria,
Leukopenia,
Urticaria
Ethosuximide
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Valproic acid
Mechanism of action :
 GABA, Na+ , Ca++
Adverse effects:
Tremors
Rashes
Alopecia
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Diazepam & Vigabatrine
Diazepam is a drug of choice in
status epilepticus and febrile
convulsions
Vigabatrine is an GABA analouge
which acts by irreversibily inhibiting
the enzyme GABA transminase
thereby raising brain GABA levels
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2. Surgery
The goal of surgery is total control of
seizures and this may be achieved in
60–70% of cases.
3. Other
A ketogenic diet
Sensitive to light, wearing dark
glasses may be useful
Seizure response dogs
Cont.…
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 Brunton, Laurence L. et al., eds. Goodman and Gilman’s The Pharmacological
Basis of Therapeutics. 12th
ed. New York: Mc Graw Hill, 2011. Print.
 Katzung, Bertram G. et al., Basic and Clinical Pharmacology. 12th
ed. New York:
Mc Graw Hill, 2012. Print.
 Clark, Michelle A. et al., Lippincott’s Illustrated Reviews Pharmacology. 5th
ed.
New York: Lippincott Williams & Wilkins, 2012. Print.
 Rang, H P. et al., Rang and Dales Pharmacology. 7th
ed. New York: Churchill
Livingstone Elsevier, 2012. Print.
 Brody,Theodore M. et al., Human Pharmacology: Molecular to Clinical. 2th
ed.
United Stated of America: Mosby, 1994. Print.
 Golan, David E. et al., eds. Principles of Pharmacology: The Pathophysiologic
Basis of Drug Therapy. 1th
ed. New York: Lippincott Williams & Wilkins, 2005.
Print.
 Goth, Andres. et al., eds. Medical Pharmacology: Principles and Concept. 11th
ed. United Stated of America: Mosby, 1984. Print.
 Jacob, Leonard S. NMS Pharmacology. 4th
ed. London: Williams & Wilkins,
1996. Print.
 Berry, Tricia M. Clinical Pharmacology Made Incredibly Easy. 3th
ed. New York:
Lippincott Williams & Wilkins, 2009. Print.
 Craig, Charles R. et al., Modern Pharmacology with Clinical Applications. 6th
ed.
New York: Lippincott Williams & Wilkins, 2009. Print.
References
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Any ?

Epilepsy & its management

  • 1.
  • 2.
    YOUR SITE HERE LOGO 1.Epilepsy 2. Epidemiology 3. Aetiology 4. Classification Outline 5. 5. Pathophysiology 6. Signs and symptoms 7. Management
  • 3.
    YOUR SITE HERE LOGO Epilepsy Epilepsyis a brain disorder in which clusters of nerve cells, or neurons, in the brain sometimes signal abnormally. It produces changes in a person's movement, behavior or consciousness
  • 4.
    YOUR SITE HERE LOGO Epidemiology About1% of people worldwide (65 million) have epilepsy, and nearly 80% of cases occur in developing countries. More than 2 million people in the United States -- about 1 in 100 -- have experienced an unprovoked seizure or been diagnosed with epilepsy.
  • 5.
    YOUR SITE HERE LOGO Aetiology Thecause is unknown in 70% of cases  Brain Trauma (e.g. injury, stroke)  Brain Lesions (e.g. tumors)  Poisoning (e.g. lead)  Infections of the brain (e.g. meningitis) Chronic alcohol/ drug abuse Genetic causes
  • 6.
    YOUR SITE HERE LOGO Classification 1.Common generalized seizure  Tonic-clonic seizure– 1-2 min  Absence seizure– 3-5 sec  Myoclonic seizures– Several min  Atonic seizure  Intractable seizure
  • 7.
    YOUR SITE HERE LOGO Cont.… 2.Common partial seizures  Simple partial seizure– 90 sec  Complex partial– 1-2 min  Secondary generalization--  Status epilepticus– 30 min
  • 8.
    YOUR SITE HERE LOGO Nerveimpulse propagates in the brain in a synchronous manner and for that the electrical potential reaches to zero. Pathophysiology
  • 9.
    YOUR SITE HERE LOGO Blackout Episodesof staring Involuntary movement of arms and legs Odd sounds Odd sensations Visual hallucinations Emotional changes  Muscle spasms Signs and symptoms
  • 10.
    YOUR SITE HERE LOGO 1.Medications Hydantoins: phenytoin Barbiturates: phenobarbitone Iminostilbene: carbamazepine Succinimide: ethosuximide GABA transaminase inhibitiors: valproic acid Benzodiazepines: diazepam GABA analouges: vigabatrin Management
  • 11.
    YOUR SITE HERE LOGO Mechanismof action  Na+ , Ca++ Adverse effects  Epigastric pain  Ataxia  Anorexia Dose 20mg/kg Phenytion
  • 12.
    YOUR SITE HERE LOGO Mechanismof action: Na+ Adverse effects : Vertigo Blurring of vision Dizziness Dose : 200-400 mg Carbamazepine
  • 13.
    YOUR SITE HERE LOGO Mechanismof action : Ca++ Adverse effects: Lethargy, Euphoria, Leukopenia, Urticaria Ethosuximide
  • 14.
    YOUR SITE HERE LOGO Valproicacid Mechanism of action :  GABA, Na+ , Ca++ Adverse effects: Tremors Rashes Alopecia
  • 15.
    YOUR SITE HERE LOGO Diazepam& Vigabatrine Diazepam is a drug of choice in status epilepticus and febrile convulsions Vigabatrine is an GABA analouge which acts by irreversibily inhibiting the enzyme GABA transminase thereby raising brain GABA levels
  • 16.
    YOUR SITE HERE LOGO 2.Surgery The goal of surgery is total control of seizures and this may be achieved in 60–70% of cases. 3. Other A ketogenic diet Sensitive to light, wearing dark glasses may be useful Seizure response dogs Cont.…
  • 17.
    YOUR SITE HERE LOGO Brunton, Laurence L. et al., eds. Goodman and Gilman’s The Pharmacological Basis of Therapeutics. 12th ed. New York: Mc Graw Hill, 2011. Print.  Katzung, Bertram G. et al., Basic and Clinical Pharmacology. 12th ed. New York: Mc Graw Hill, 2012. Print.  Clark, Michelle A. et al., Lippincott’s Illustrated Reviews Pharmacology. 5th ed. New York: Lippincott Williams & Wilkins, 2012. Print.  Rang, H P. et al., Rang and Dales Pharmacology. 7th ed. New York: Churchill Livingstone Elsevier, 2012. Print.  Brody,Theodore M. et al., Human Pharmacology: Molecular to Clinical. 2th ed. United Stated of America: Mosby, 1994. Print.  Golan, David E. et al., eds. Principles of Pharmacology: The Pathophysiologic Basis of Drug Therapy. 1th ed. New York: Lippincott Williams & Wilkins, 2005. Print.  Goth, Andres. et al., eds. Medical Pharmacology: Principles and Concept. 11th ed. United Stated of America: Mosby, 1984. Print.  Jacob, Leonard S. NMS Pharmacology. 4th ed. London: Williams & Wilkins, 1996. Print.  Berry, Tricia M. Clinical Pharmacology Made Incredibly Easy. 3th ed. New York: Lippincott Williams & Wilkins, 2009. Print.  Craig, Charles R. et al., Modern Pharmacology with Clinical Applications. 6th ed. New York: Lippincott Williams & Wilkins, 2009. Print. References
  • 18.