Short course of oral prednisolone on disappearance of lesion and seizure recurrence in patients of solitary cysticercal granuloma with single small enhancing CT lesion: an open label randomized prospective study

Abstract

Objective: To evaluate the effect of a short course of oral prednisolone on disappearance of lesion and seizure recurrence in newly diagnosed patients with single small enhancing CT lesion.

Methods: In this open-label, randomized, prospective follow-up study, 100 patients of new-onset seizures and a cysticercus granuloma presenting as single enhancing computed tomography detected lesion were randomly divided in two groups to receive either antiepileptic monotherapy (Group A) or antiepileptic drugs with oral prednisolone in a dose of 1 mg/kg body weight for 7 days and tapering off dose in next 3 days (Group B). Repeat CT scan was performed on 8th-12th week to know radiological state of lesion. The patients were followed up for 1 year for seizure recurrence.

Results: The majority of patients were in second decade. Male: female ratio 1.56:1. Mean number of seizure episodes was 4.33 +/- 3.50 in group A and 4.23 +/- 3.97 in group B. Partial seizure were the most common presentation (85%). 72% patients presented with single seizure or seizure in cluster. Solitary ring lesion was the commonest (69%) CT finding, most of them were located in parietal lobe (52%). Follow up CT scan showed complete resolution of lesion in 60.86% of total [group A (n = 47), 32 patients, 68.08%; group B (n = 45), 24 patients, 53.33%]. Significant difference in group A and B regarding lesion resolution was observed (chi2 = 5.926, d.f. = 1) p < 0.05. Clinical follow up showed seizure recurrence in group A - 5 patients (10.63%), in group B - 12 patients (26.66%). Statistically significant higher number of seizure recurrences were noted in group B as compared to group A (chi2 = 3.93, d.f. = 1) p < 0.05.

Conclusions: Short-term oral prednisolone along with antiepileptic drugs helps in rapid resolution of single small enhancing lesions in patient with newly diagnosed seizure disorder with good clinical outcome.