Seizures have a variety of aetiologies and may have various manifestat
ions. Some are recurrent and represent the different types of epilepsy
, whereas others are isolated events. Descriptions of various epilepti
c seizures, as well as their corresponding electroencephalograms (EEGs
), have recently led to a unifying international classification of epi
leptic seizures and epilepsy syndromes. These classifications are extr
emely important for the practitioner working with the paediatric patie
nt, as they allow for optimal evaluation and treatment. This article r
eviews the epilepsies and epilepsy syndromes with special attention to
age of onset and prognosis. Special circumstances such as status epil
epticus, which represents a true medical emergency, are reviewed. The
first step in the pharmacological management of seizures is to establi
sh the diagnosis of epilepsy. The recurrence of seizures (or the risk)
, seizure type and specific syndrome help guide initial treatment choi
ces. There is no drug of choice, but some drugs have proven more effec
tive for certain types of seizure. Monotherapy is preferable, and comb
ination therapy should only be used if monotherapy with first-line dru
gs fails. Candidates for the newer antiepileptic drugs (e.g. felbamate
, gabapentin, lamotrigine and vigabatrin) include patients resistant t
o older agents or who are unable to tolerate them. The exact place in
therapy of these newer agents is uncertain, but in many patients they
provide better seizure control and are better tolerated.