Increasing awareness about sudden unexplained death in epilepsy--a review

Area of Science:

• Neurology
• Epileptology
• Public Health

Background:

• Sudden unexplained death in epilepsy (SUDEP) is the leading cause of epilepsy-related mortality.
• Many SUDEP risk factors are potentially avoidable, yet under-addressed, particularly in regions like Nigeria where deaths often occur unreported at home.
• Lack of autopsies hinders accurate cause-of-death determination in epilepsy patients.

Purpose of the Study:

• To systematically review literature on SUDEP, highlighting its significance and potential for prevention.
• To re-engage clinicians on SUDEP, addressing challenges in its recognition and management.
• To discuss case definitions, diagnostic criteria, risk factors, pathophysiology, and strategies for reducing SUDEP incidence.

Main Methods:

• Systematic review of literature and research publications on SUDEP.
• Analysis of case definitions, diagnostic criteria, and risk factors.
• Discussion of pathophysiology and treatment/prevention strategies.

Main Results:

• SUDEP incidence correlates with seizure severity, early onset, poor seizure control, generalized tonic-clonic seizures, polypharmacy, and frequent antiepileptic drug adjustments.
• Pathophysiology involves impaired cardiorespiratory reflexes, leading to central apnea, hypoxia, edema, and cardiac arrhythmias.
• Patient and caregiver education is crucial for SUDEP risk reduction.

Conclusions:

• Optimal seizure management, preferably with monotherapy, is key.
• Vagal nerve stimulation and early consideration of neurosurgery are options for intractable epilepsy.
• Proactive management and education are essential to decrease SUDEP rates.