Epilepsy in chronic subdural haematoma

Area of Science:

• Neurosurgery
• Neurology

Background:

• Chronic subdural hematoma (CSH) is a significant neurosurgical condition.
• Epilepsy is a known complication of CSH, both pre- and post-operatively.

Purpose of the Study:

• To investigate the incidence of epilepsy in patients undergoing surgery for CSH.
• To explore the relationship between preoperative and postoperative epilepsy.
• To assess the role of the hematoma capsule in the development of postoperative epilepsy.

Main Methods:

• Retrospective analysis of 130 patients operated for CSH.
• Documentation of preoperative seizures.
• Follow-up for at least 3 years to record postoperative epilepsy.
• Evaluation of potential factors, including the hematoma capsule.

Main Results:

• 9 out of 130 patients (approx. 7%) had preoperative epileptic fits (5 generalized, 4 partial).
• Early surgical results were good, with 7 patients seizure-free at 3-year follow-up.
• 7 patients developed epilepsy within the first year post-surgery, resulting in an overall postoperative epilepsy incidence of 7%.
• No preoperative epilepsy was observed in patients who developed postoperative epilepsy.

Conclusions:

• Surgery for CSH can lead to the development of postoperative epilepsy in a notable percentage of patients.
• The hematoma capsule is hypothesized to play a crucial role in the pathogenesis of post-CSH surgery epilepsy.