especially with Topiramate and Levetiracetam,
although the extent that the medication plays in pro-ducing these symptoms remains uncertain.
33
It is rec-ommended that baseline mood and cognitive ability
is taken into account when deciding which AED to
prescribe in refractory patients, in order to minimize
any impact that prescribing may have on mood and
cognition. This will improve AED tolerability and
ensure the minimum detrimental impact on QOL.
In addition to the above evidence, clinical stud-ies on polytherapy are informative when considering
using a combination of AEDs. One study on 47 patients
with cognitive impairment showed that seizures were
controlled more effectively by a combination of Phe-nobarbital and Phenytoin or Phenobarbital and Car-bamazepine, than by Phenytoin and Carbamazepine
combination.
34
This suggested that a combination of
two sodium-channel blocking AEDs does not improve
seizure control significantly. Other studies indicate
that a combination of Carbamazepine and Valproate
or Carbamazepine and Vigabatrin is more effective in
seizure control than a combination of Carbamazepine
and Phenytoin, although these studies were not con-trolled for drug concentration.
35,36
The AED combina-tion for which there is the most convincing evidence
is Lamotrigine and Valproate. A large study aiming to
assess the efficacy of Lamotrigine monotherapy also
evaluated the effect on seizure control whilst taking
Lamotrigine as add-on to the first AED (Carbam-azepine, Phenytoin or Valproate). This study showed
that patients who were taking Lamotrigine and Val-proate experienced an 83% reduction in seizures,
whilst those taking the Lamotrigine and Carbam-azepine or Lamotrigine and Phenytoin combinations
experienced only a 43% and 34% reduction in sei-zures, respectively.
37
These findings should be inter-preted with some caution, however, as different doses
of Lamotrigine were used in each combination.
especially with Topiramate and Levetiracetam, although the extent that the medication plays in pro-ducing these symptoms remains uncertain.33It is rec-ommended that baseline mood and cognitive ability is taken into account when deciding which AED to prescribe in refractory patients, in order to minimize any impact that prescribing may have on mood and cognition. This will improve AED tolerability and ensure the minimum detrimental impact on QOL.In addition to the above evidence, clinical stud-ies on polytherapy are informative when considering using a combination of AEDs. One study on 47 patients with cognitive impairment showed that seizures were controlled more effectively by a combination of Phe-nobarbital and Phenytoin or Phenobarbital and Car-bamazepine, than by Phenytoin and Carbamazepine combination.34This suggested that a combination of two sodium-channel blocking AEDs does not improve seizure control significantly. Other studies indicate that a combination of Carbamazepine and Valproate or Carbamazepine and Vigabatrin is more effective in seizure control than a combination of Carbamazepine and Phenytoin, although these studies were not con-trolled for drug concentration.35,36The AED combina-tion for which there is the most convincing evidence is Lamotrigine and Valproate. A large study aiming to assess the efficacy of Lamotrigine monotherapy also evaluated the effect on seizure control whilst taking Lamotrigine as add-on to the first AED (Carbam-azepine, Phenytoin or Valproate). This study showed
that patients who were taking Lamotrigine and Val-proate experienced an 83% reduction in seizures,
whilst those taking the Lamotrigine and Carbam-azepine or Lamotrigine and Phenytoin combinations
experienced only a 43% and 34% reduction in sei-zures, respectively.
37
These findings should be inter-preted with some caution, however, as different doses
of Lamotrigine were used in each combination.
การแปล กรุณารอสักครู่..
