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French guidelines on stereoelectroencephalography (SEEG)

Jean Isnard 1, * Delphine Taussig 2 Fabrice Bartolomei 3 Pierre Bourdillon 4 Hélène Catenoix 1 Francine Chassoux 5 Mathilde Chipaux 6 Stéphane Clemenceau 7 Sophie Colnat-Coulbois 8 Marie Denuelle 9 Stéphane Derrey 10, 11, 12, 13 Bertrand Devaux 14 Georg Dorfmüller Vianney Gilard 15 Marc Guenot Anne-Sophie Job-Chapron 16 Elisabeth Landré 5 Axel Lebas 17 Louis Maillard 18 Aileen Mcgonigal 3 Lorella Minotti 16 Alexandra Montavont 1 Vincent Navarro 4 Anca Nica 19 Nicolas Reyns 20 Julia Scholly 21 Jean-Christophe Sol 9 William Szurhaj 22 Agnès Trébuchon 3 Louise Tyvaert 18 Maria Paola Valenti-Hirsch 21 Luc Valton 23 Jean-Pierre Vignal 18 Paul Sauleau 24
Abstract : Stereoelectroencephalography (SEEG) was designed and developed in the 1960s in France by J. Talairach and J. Bancaud. It is an invasive method of exploration for drug-resistant focal epilepsies, offering the advantage of a tridimensional and temporally precise study of the epileptic discharge. It allows anatomo-electrical correlations and tailored surgeries. Whereas this method has been used for decades by experts in a limited number of European centers, the last ten years have seen increasing worldwide spread of its use. Moreover in current practice, SEEG is not only a diagnostic tool but also offers a therapeutic option, i.e., thermocoagulation. In order to propose formal guidelines for best clinical practice in SEEG, a working party was formed, composed of experts from every French centre with a large SEEG experience (those performing more than 10 SEEG per year over at least a 5 year period). This group formulated recommendations, which were graded by all participants according to established methodology. The first part of this article summarizes these within the following topics: indications and limits of SEEG; planning and management of SEEG; surgical technique; electrophysiological technical procedures; interpretation of SEEG recordings; and SEEG-guided radio frequency thermocoagulation. In the second part, those different aspects are discussed in more detail by subgroups of experts, based on existing literature and their own experience. The aim of this work is to present a consensual French approach to SEEG, which could be used as a basic document for centers using this method, particularly those who are beginning SEEG practice. These guidelines are supported by the French Clinical Neurophysiology Society and the French chapter of the International League Against Epilepsy.
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Jean Isnard, Delphine Taussig, Fabrice Bartolomei, Pierre Bourdillon, Hélène Catenoix, et al.. French guidelines on stereoelectroencephalography (SEEG). Neurophysiologie Clinique/Clinical Neurophysiology, Elsevier Masson, 2018, 48 (1), pp.5-13. ⟨10.1016/j.neucli.2017.11.005⟩. ⟨hal-01744390v2⟩



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