Objectives: To study the manifestations of the paroxysms, the variants of the course, and to
determine the significant predictive factors for post-traumatic epilepsy (PTE) in Ulaanbaatar,
Mongolia. Methods: We obtained the histories of 109 PTE patients who came to district health
associations and the Central First Clinic in Ulaanbaatar from 2011 to 2013. We conducted
a questionnaire and performed clinical examination to evaluate seizures in accordance with
semiologic and international classification of epileptic seizures. Clinical data was matched
with the results of electroencephalography (EEG), computed tomography (CT), and magnetic
resonance imaging (MRI). Results: Of the 109 patients, 93 (85%) presented with secondary
generalized partial seizure (SGPS), 16 (15%) with partial seizure and 66 (60.5%) with motor
phenomena. The seizure frequency was not correlated with the structural brain abnormalities,
but there was an inverse association (r=-0.32, p<0.001) between seizure frequency and the
duration of PTE. PTE was positively correlated with severe injury, contusion, early onset of
seizures (p<0.05), and operative brain injury (p<0.005). Conclusion: Clinical features of PTE
were presented as secondary generalized seizure and motor phenomena in the majority of
patients. PTE was characterized commonly by long durations of high seizure frequency and
significantly affected by factors such as severity of head injury and operative brain injury.