Abstract
Single small enhancing computed tomographic (CT) lesions are common in children with focal seizures. There is a paucity of information regarding their long-term outcome and prognostic factors for seizure recurrence. The objective of this work was to study the frequency of seizure recurrence in children with single small enhancing computed tomographic lesions and to identify prognostic factors, if any, for seizure recurrence. A prospective long-term follow-up was conducted at the Advanced Pediatric Center, Postgraduate Institute of Medical Education and Research, an urban tertiary care teaching hospital. Sixty-three children between 2 and 12 years of age with focal seizures for less than 3 months and single small enhancing computed tomographic lesions were enrolled in a randomized, double-blind, placebo-controlled trial of albendazole therapy and followed up for 4 years. On long-term follow-up, the albendazole and placebo groups were left with 29 and 28 children, respectively. After several months of seizure-free period, antiepileptic drug was tapered off. Children with relapse underwent magnetic resonance imaging examination. All children were followed up for at least 18 months after stopping of the antiepileptic drug. Seizure recurrence was seen in three children each in both groups, after a mean interval of 6.4 weeks after stopping the antiepileptic drug. Magnetic resonance imaging revealed persistent chronic granuloma in 2 and calcified granuloma in 4 children. Residual lesions were significantly correlated with seizure recurrence. In children whose lesions completely disappeared, no seizure recurrence was seen even during shorter periods of antiepileptic drug treatment. Seizure recurrence was seen in a small number of children with focal seizures and single small enhancing computed tomographic lesions. It appears to be related to either a persistent or a calcified lesion.
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