Page 141 - ILAE_Lectures_2015

Table 1. Head injury.

Risk of epilepsy

Number of 1 year 5 years Relative
patients (%) (%)risk vs

expected
risk

Severe injuries 195 7.1 11.5 29
(brain contusion, intra-
cranial haematoma or 92 0.7 1.6 4.0
PTA > 24 hours) 1640 0.1
0.6 1.5
Moderate injuries (95%CI
(skull fracture or 0.63.3)
PTA >30 mins)
0.4
Mild injuries
(no fractures
PTA <30 mins)

Expected rates

PTA = post-traumatic amnesia

Table 2. Factors influencing risk of epilepsy after missile injuries.

Frontal injury
Persistent hemiparesis
Surgical removal of metal
Complicating infection
- abscess
- fungal infection