Reinvestigation and reduction of polytherapy in children with chronic seizures.
From October 2001 to October 2003, the authors reviewed all patients with chronic seizures taking antiepileptic drugs for more than 2 years with follow-up at the pediatric neurological clinic. They identified 31 patients who were using 3 or more drugs. Twenty-nine patients agreed to undergo a drug reduction and readjustment. The authors spent a mean period of 14.1 months to either purely reduce the numbers of drugs or introduce a new drug (rational polytherapy) plus removal of some drugs to achieve the end goal of a maximum of 2 or 3 drugs (if necessary). Seizure control in 96.6% of patients (28 of 29 patients) did not worsen after the readjustment and reduction of the antiepileptic drugs. Instead, 65.5% (19 of 29 patients) got better, and 37.9% (11 of 29) were seizure free. The number of antiepileptic drugs before and after adjusting was 3.6 (range, 3-6) to 1.9 (4 monotherapy, 22 duotheray, and 2 triple drugs). The most common combined therapies were sodium valproate/lamotrigine (n = 10) and carbamazepine/ topiramate (n = 5). Although the results could be possibly attributed to the spontaneous remission of the seizures, it was still shown that those patients were overtreated. Serial addition to 3 or more antiepileptic drugs is less likely to lead to seizure freedom for patients with difficult-to-treat epilepsy. On the contrary, polytherapy and some antiepileptic drugs could aggravate seizures. Certain combinations of antiepileptic drugs (rational polytherapy) offer better efficacy to control seizures.
Chen
Chu-Chin
CC
Department of Pediatrics, Veterans General Hospital-Kaohsiung, National Yang-Ming University, Taiwan. childdoctor@hotmail.com
Chiu
Pao-Chin
PC
Chen
Mei-Tsen
MT
D000293:Adolescent; D000328:Adult; D000927:Anticonvulsants / Q000627:therapeutic use*; D016009:Chi-Square Distribution; D002648:Child; D002675:Child, Preschool; D002908:Chronic Disease; D004359:Drug Therapy, Combination; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D012189:Retrospective Studies; D012640:Seizures / Q000453:epidemiology / Q000628:therapy*; D016896:Treatment Outcome
D000927:Anticonvulsants