Epilepsy Flashcards
Five types of epileptic seizures
1) Focal (partial) seizure with or without secondary generalisation
2) Tonic colonic seizures
3) Absence seizures
4) Myoclonic seizures.
5) Atonic seizures
Which antiepileptic can be given OD
Lamotrigine, perampanel, phenobarbital, and phenytoin,
Category one antiepileptic drugs
- Carbamazepine
- Phenytoin
- Phenobarbital
- Primidone
Category two antiepileptic drugs
- Valproate
- Lamotrigine
- Clonazepam
- Topiramate
Category two antiepileptic drugs
- Levetiracetam
- Gabapentin
- Pregabalin
What symptoms occur in Antiepileptic hypersensitivity syndrome
- fever, rash, and lymphadenopathy
Three things to consider when withdrawing antiepileptic drugs
- Gradually reduce the dose under specialist supervision
- Avoid abrupt withdrawal
- Withdraw one epileptic at time
Epileptic patients can drive if…
- Seizure free for one year
- Seizure pattern has no affect on person
- No history on unprovoked seizure
- Seizures are due to prescribed change or withdrawal
Which antiepileptic medication belong to each risk group of pregnancy
- Highest risk:
- Increased risk
- Cleft plate:
- Highest risk: Valproate
- Increased risk : Carbamazepine , Phenytoin , Phenobarbital , lamotrigine.
- Cleft plate: Topimerate
Which Antiepileptic drug needs to be dose adjusted due to plasma concentration changes
- Carbamazepine and Lamotrigine.
Which Antiepileptic drug needs you to monitor foetal growth
- Topimerate and Levetiracetam
Which Antiepileptic drugs need to be referred to specialist family planning
All
What do you need to give to women who are pregnant, planning to become pregnant or just after pregnancy who also take antiepileptic medication:
- Vitamin K
- Folic acid
Which medication causes withdrawal effects in newborn children
Benzodiazepines and phenobarbital.
What to monitor in antiepileptic drugs + breastfeeding
Monitor drowsiness , weight gain , feeding , adverse effects, development milestones
Which antiepileptic medication is present in high amounts in milk?
ZELP
Zosinammide, Ethosuximide , Lamotrigine , Primidone
Which antiepileptic accumulates due to slower metabolism in infants
Phenobarbital + lamotrigine
Which antiepileptic inhibits sucking reflex
Phenobarbital / Primidone
Which antiepileptic has an increased risk of drowsiness in babies
Benzo , Phenobarbital and Primidone
Which antiepileptic should you avoid abrupt withdrawal or breast feeding?
ALL special phenobarbital/ primidone.
What is the main side effect with antiepileptics?
1) Antiepileptics hypersensitivity syndrome.
o Rash , fever and systemic involvement
2) MHRA alert: Risk of suicidal behaviour and thoughts,
3) Skin rashes
a. SJS , toxic epidermal necrolysis
4) Blood dyscarasis
5) Eye problems
a. Espc . Vigabatrin
6) Encephalopathic symptoms
(loss of memory and concentration)
7) MHRA alert: risk of severe respiratory depression without opioid medication - Elderly renal impaired respiratory compromised are at higher risk
What is the MOA of interaction with antiepileptics
- Antiepileptics are enzyme inhibitors = Increased Cp
o E.g Sodium valproate - Anti-epileptics enzyme inducers = decreased Cp
o Carbamazepine / Phenytoin / Phenobarbital.
Uses of Phenytoin
Focal seizures and tonic clonic seizures
What does Phenytoin extubate
Absence and myoclonic seizures