Clinical and Etiological Characteristics of Epilepsy in the Elderly: A Hospital-Based Study from a Tertiary Care Referral Center of Niamey, Niger.

The aim of this study is to evaluate the management of epilepsy in the elderly at a tertiary referral center in Niger to obtain a comprehensive understanding to determine the intrahospital deficiencies to improve and to make recommendations in terms to improve the management of epilepsy in the elderly in Niger. We conducted a retrospective study at the Neurology Outpatient Clinic of the National Hospital of Niamey (Niger) over a period of 5 years from May 2013 to May 2018, collecting all cases of patients aged 60 years or over diagnosed with epilepsy by neurologists. From the registers of consultation, we collected and analyzed for each patient the demographic, clinical, etiological, and therapeutic data, as well as the outcomes during follow-up visits. Of the 4,576 patients of all ages seen during the period of our study, we included 62 patients aged 60 years or over diagnosed with epilepsy with a hospital frequency of 1.35%. The mean age of patients was 65.82 ± 5.72 years (range: 60 and 83 years) with a predominance of the male sex (sex ratio at 1.6). Patients aged 60 to 64 years were the most represented (43.5%). Generalized tonic-clonic seizures were the most frequent (41.9%), followed by focal to bilateral tonic-clonic seizures (25.8%). All patients underwent electroencephalogram. Only 30 patients (48.4%) underwent brain imaging, and mainly brain computed tomography scan. The etiologies included poststroke epilepsy (25.8%), brain tumors (3.2%), cerebral toxoplasmosis (3.2%), and cerebral meningioma (1.6%). We found 41 cases (66.1%) of epilepsy without definite etiology and with an incomplete workup. Carbamazepine and phenobarbital were the only two antiepileptic drugs (AEDs) used. The present study shows limited access to newer generation AEDs and diagnostic tests of epilepsy in Niger. Considerable efforts should be made to facilitate for people living with epilepsy the accessibility to diagnostic tests and the newer generation AEDs to improve the quality of epilepsy management in Niger.