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EPILEPSY.ppt

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Epilepsy an overview
Epilepsy an overview
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EPILEPSY.ppt

  1. 1. EPILEPSY BY MRS VIJAYALAXMI. DASHRATH. PROFESSOR ALKAREEM COLLEGE OF NURSING KALABURGI
  2. 2. INTRODUCTION  Epilepsy has been prevalent since time immemorial. In those days, epilepsy was attributed to evil spirits. Hence, the treatment went along such lines like worshiping the Gods, using charms and amulets etc. Even today, in many parts of India these practices holds way and the price the patients have to pay is enormous.
  3. 3.  At the global levels nearly 40million people are estimated to be suffering from epilepsy. India contributes for nearly one third of global epilepsy problem (8-10 million). In our country. We have the Indian Epilepsy Association (IEA), which is committed to increase the awareness about epilepsy and also fight for the right of the epileptics. In many places, other voluntary agencies also contributes their mite to tackle the problem. Every year November 17 is celebrated as National Epilepsy Day.
  4. 4. MEANING  The word ‘epilepsy’ and ‘epileptic’ are of Greek origin, have the same meaning-to ‘seize’ or to ‘attack’. Epilepsy acquired its name because it attacked or seized both the senses and level of conscious/ orientation to self and environment.
  5. 5. DEFINITION  Epilepsy is the consequence of a paroxysmal uncontrolled discharge of electrical impulses/neurons within the central nervous systems.  konduru Reddemma in 2006
  6. 6.  Epilepsy as ‘occasional, sudden, excessive, rapid and local discharges of grey mater’.  Hughlings Jackson in 1873.
  7. 7.  Epilepsy is a disturbance of the normal rhythms of the brain. Lennox in 1960. Epilepsy as a group of disorders in which there are recurrent episodes of altered cerebral function associated with paroxysmal excessive and hyper synchronous discharge of cerebral neurons. Cull in 1992
  8. 8.  Epilepsy (from the Ancient Greek ἐπιληψία epilēpsía) is a common chronic neurological disorder characterized by recurrent unprovoked seizures.  These seizures are transient signs and/or symptoms of abnormal, excessive or synchronous neuronal activity in the brain. Wikipedia and Encyclopedia 2009.
  9. 9.  Epilepsy is a disorder of the brain. People with epilepsy have brain cells that create abnormal electricity, causing seizures. In some cases, a seizure may cause jerking, uncontrolled movements and loss of consciousness. In other cases, seizures cause only a period of confusion, a staring spell or muscle spasms. Medline 2009.
  10. 10. Etiology  The etiology is unknown in 70% cases.  Family history of epilepsy.  History of perinatal complications.  Asphyxia neonatorum  Prematurity  Trauma during birth  Intra cranial infection  Post traumatic epilepsy.  Intracranial space occupying lesion.  Vascular malformation, subarachnoid hemorrhage, stroke and vasospasm. Atherosclerosis  Biochemical disorders- Alcoholism, drug overdose, diabetes.
  11. 11. PRECIPITATING FACTORS  Physical illness-febrile fits  Nutritional deficiency, hypoglycemia.  Endocrine disorders  Unexpected loud noise, music, reading.  While watching TV.  Exposure to cold weather/rain.  Hot water bath.  Angry/Fearful situation.  Sleep deprivation  Looking down from a height.
  12. 12. CLASSIFICATION International classification of Epilepsy and Epileptic syndrome (commission, 1989) is used most frequently to classify epilepsy. 1. A. Localized (partial, focal) 2. B. Generalized form 3. A. Multiple seizure types- include partial seizures with or without becoming secondarily generalized.
  13. 13.  B. Generalized seizures with tonic, clonic, phases.  C. Myoclonic seizures.  D. Atonic seizures (drop attacks)  E. Atypical absence seizures.
  14. 14. 1. A. Localized (partial, focal): seizure types is between partial (focal) seizures in which paroxysmal neuronal activity is limited to one part of the cerebrum. So it is localized seizure.
  15. 15. B. Generalized form  Generalized seizures where the electro physiological abnormality involves large areas of both hemispheres simultaneously and synchronously.
  16. 16. 2. A. Idiopathic (unknown cause) Idiopathic seizures may occur without any identifiable cause. The basis of idiopathic seizure disorders may be a biochemical imbalance. B. Symptomatic with a demonstrable brain lesions (Brain abscess, tumors, hematomas), infections (encephalitis), vascular lesions embolus), hemorrhages).
  17. 17. Multiple seizure types  If partial seizures remain localized, the symtomatology is elementary and depends on the cortical area affected; awareness is preserved, and the attack is termed ‘simple’.
  18. 18.  Generalized seizures with tonic, clonic, phases:  A tonic-clonic seizure is the typical grandmal seizure of older classification. The seizure may have several phases.
  19. 19. Signs and symptomts  Aura, Tonus, Clonus  Convulsion/seizure/shaking limbs  A loud cry  Unconsciousness for few seconds  Behavioral disturbances/ alteration in appearance  Features of epileptic attack  Skin colour changes in to blue
  20. 20.  Passes urine/ motion during fit.  May sustain injury due to fall at the time of fits  May bring out froth in the mouth  May get confused soon after fit.
  21. 21. Diagnosing epilepsy  Take a detailed history from the patient  Interview an eye-witness who has observed the attacks  Explore the underlying cause  Structured history- Frequency, duration, timing, triggering factors and clinical manifestation of the attack.  Physical and Neurological examination.
  22. 22. Investigation in Epilepsy  Full blood count, ESR  Blood urea, electrolytes, calcium, glucose  Liver function tests  Serological tests for syphilis  HIV serology in high risk groups  Chest and skull radiographs  Electrocardiogram (ECG)  Electro encephalography  Computed tomography (CT)  Magnetic resonance imaging (MRI)
  23. 23. Management  1. Immediate care of seizures:  Move person away from danger (fire, water, machinery)  After convulsions cease, turn patient into semi-prone position, ensure their airway is patent.  If convulsions continue for more than 5 minutes or begin again, sum one medical help.
  24. 24.  To try to prevent tongue biting a padded gag or tightly rolled hand kerchief may be inserted between the teeth.  Metallic or plastic objects and helper’s fingers should not be used. It is often not possible to prevent tongue biting once a seizure has started.  To offset cerebral hypoxia, give oxygen at high concentration, if available.
  25. 25. Medical Management  Barbiturates- Phenobarbital 60-200mg  Hydantoins- dilantin 300-400mg  Carbamazepine – Tegretal 600 (200- 1200)mg  Valporic acid-Depekene 800-200mg  Diazepam-valium 5-10mg IV  Steroids to control cerebral edema.
  26. 26. SEIZURE INHIBITING DRUGS seizures can arise from removal of gaba induced inhibition when gaba levels drop vitamin b6 (pyridoxal phosphate) is important for gaba synthesis most gaba is eventually converted to succinate by gaba aminotransferase a gaba aminotransferase inhibitor, sodium dipropylacetate, is widely used as an anticonvulsant
  27. 27. most gaba is eventually converted to succinate by gaba aminotransferase a gaba aminotransferase inhibitor, sodium dipropylacetate, is widely used as an anticonvulsant gaba is most commonly found in local- circuit interneurons drugs that act as agonists or modulators for postsynaptic gaba receptors, such as barbiturates, are also used to treat epilepsy
  28. 28. Surgical Management  Only when no response to drugs  Has unilateral focus  Has a significant alteration in the quality of life.  Locate and excise as much of the epileptogenic areas possible.  Removal of the causative factor like a brain tumor, blood clot, pus collection in the brain etc.
  29. 29. Surgical removal of epileptogenic region Cutting corpus callosum to prevent spread of seizures between hemispheres

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