Epileptiform activity predicts epileptogenesis in cerebral hemorrhage

Area of Science:

• Neurology
• Clinical Neuroscience
• Epileptology

Background:

• Nontraumatic intracranial hemorrhages, including intraparenchymal hemorrhage (IPH) and subarachnoid hemorrhage (SAH), can lead to long-term neurological complications.
• Epilepsy is a significant consequence that can arise after these cerebrovascular events.
• Identifying early risk factors is crucial for predicting post-hemorrhage epilepsy (PHE).

Purpose of the Study:

• To investigate the predictive value of epileptiform activity, suspected clinical seizures, and the 2HELPS2B/S score in the acute phase for the development of epilepsy after nontraumatic IPH or SAH.
• To determine the statistical significance and odds ratios associated with these potential risk factors.

Main Methods:

• A retrospective case-controlled study design was employed.
• One hundred thirty-two patients were included: 29 diagnosed with epilepsy and 103 in the control group.
• Statistical analysis, including matching and calculation of p-values and odds ratios, was performed to assess risk factors.

Main Results:

• All three evaluated factors demonstrated a significant association with epilepsy development.
• Epileptiform activity showed a significant effect (p = 0.012, OR = 3.14).
• Suspected clinical seizures were also significant (p = 0.021, OR = 3.78).
• The 2HELPS2B/S score exhibited the strongest predictive power (p < 0.001, OR = 4.94).

Conclusions:

• Epileptiform activity, suspected seizures, and the 2HELPS2B/S score in the acute phase are validated risk factors for epilepsy after nontraumatic IPH and SAH.
• The 2HELPS2B/S score is a particularly strong predictor.
• These findings highlight the importance of monitoring these indicators for early epilepsy risk assessment in patients with intracranial hemorrhage.