This work is the result of a recently held International Epilepsy Colloquium on the mesial temporal lobe epilepsies (MTLE) which covered all aspects of this specific group of syndromes (or constellations), from animal model to treatment strategies. Written by international experts from different fields, it aims to provide professionals from neuroscientists to clinical neurologists, neurosurgeons and neuropaedia-tricians dealing with mesial temporal lobe epilepsy, with a concise overview on the current body of knowledge and on emerging concepts and findings.

This new edition of the book series dedicated to "Progress in Epileptic Disorders" is the result of a recently held unique gathering of international experts that debated on the prognostic and therapeutic issues raised by the new management of first unprovoked seizures and of newly diagnosed epilepsy. Current knowledge on natural evolution of a first seizure, the role of co-morbid conditions, the impact of immediate versus delayed treatment and recent guidelines are thoroughly addressed. The new ideas and suggestions that emerge from this book offer challenging perspectives for both patient care and clinical as well as fundamental research.

Drug-resistant epilepsy with negative MRI is frequently seen in patients considered for epilepsy surgery; however, clinical evaluation and surgical treatment is very complex and challenging. Advanced imaging techniques are needed to detect the location of the epileptogenic zone. In most cases, intracranial EEG recording is required to delineate the region of seizure onset - this carries some risks of major complications. Moreover, the borders between the recorded seizure onset and the location of important brain functions are often indistinct in MRI-negative epilepsy. Overall, the outcome of MRI-negative surgery is less favorable than that of MRI-positive surgery, but it can significantly improve with optimal management. Each chapter critically appraises the role and value of specific diagnostic and treatment techniques to address the challenges of MRI-negative epilepsy surgery. Authors critique evidence and share their expertise on the diagnostic options and surgical approaches that make epilepsy surgery possible and worthwhile in patients with this condition.