Drug-resistant Partial Epilepsy Clinical Trial
Official title:
National Network for the Study of Predictors and Prevention of Sudden Unexpected Death in Drug-resistant Partial Epilepsies
Sudden unexpected death in epilepsy (SUDEP) is the main concern of professionals and patient
associations involved in epilepsy. These represent a priority for the Ligue Française Contre
l'Epilepsie (LFCE). The SUDEP affect primarily young adults, between 18 and 40 years,
suffering from epilepsy uncontrolled by medication. In this population of close to 100,000
people in France, the incidence of SUDEP is estimated at 0.5%, or nearly 500 deaths per
year. It is clear that the majority of these deaths occur in the immediate consequences of a
crisis..
Investigators suppose that a causal link exists between the occurrence of a SUDEP and a per
/ post-critic decline of SpO2 below 80 % (75 % of cases, 20 % of controls).The constitution
of a cohort of 1500 patients clinically well described and a national database will allow
other ambitious projects in a speciality where French centres benefit from a unique
knowledge, recognized by their foreign colleagues, but underexploited to date. The LFCE
(Ligue Française Contre l'Epilepsie) is developing structuring actions to facilitate such
exploratory studies for the next two years.
The high death rate which characterizes the drug-resistant partial epilepsies and, in
particular, Sudden Unexpected Deaths in Epilepsy (SUDEP) represents the main axis of
research for the Ligue Française Contre l'Epilepsie (LFCE) as well as for associations of
epileptic patients and the European representatives of the international league against
epilepsy ( ILAE). Today, SUDEP occurrences cannot be anticipated. Patients can't be warned
against SUDEP.
Although the SUDEP physiopathology remains uncertain, many elements plead for the essential
role of a per-and post-critic apnea (central or obstructive). Investigators observe that
about 20 % of the patients admitted in a EEG-video monitoring - EEG unit for recording their
crisis are going to present experience an per / post-critic severe apnea, severe per /
post-critic enough to have induce a SpO2 < 80 % decrease.
However, today, no study has estimated the link relation between the arisen occurrence of
such apneas and the later risk of SUDEP.
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