Sudden unexpected death in epilepsy: terminology and definitions

Area of Science:

• Neurology
• Epidemiology
• Public Health

Background:

• Epilepsy mortality research is hampered by inconsistent death certification practices.
• Lack of standardized definitions and terminology complicates the interpretation of national epilepsy mortality statistics.
• Accurate classification of epilepsy-related deaths, including SUDEP, is crucial for research and public health.

Purpose of the Study:

• To address the challenges in epilepsy mortality research caused by inconsistent death certification.
• To propose guidelines for the classification of sudden unexpected death in epilepsy (SUDEP).
• To promote uniformity and comparability in studies investigating epilepsy-related mortality.

Main Methods:

• Review of existing challenges in death certification and classification of epilepsy-related deaths.
• Development of proposed guidelines for classifying SUDEP cases.
• Consideration of data limitations typically available in death investigations and epidemiological studies.

Main Results:

• Identification of key issues: inconsistent certification, undefined terms, and varied understanding of terminology.
• Proposal of specific guidelines to standardize SUDEP classification.
• Complementary guidelines for identified deaths in epidemiological studies with data gaps.

Conclusions:

• A consensus on death certification and classification of epilepsy-related deaths, particularly SUDEP, is urgently needed.
• The proposed guidelines aim to improve the uniformity and comparability of SUDEP research.
• Standardized approaches are essential for accurate interpretation of epilepsy mortality data and advancing research.