Search Results

You are looking at 1 - 10 of 102 items for :

Clear All
Full access

Suraj Suresh, Jennifer Sweet, Philip S. Fastenau, Hans Lüders, Patrick Landazuri and Jonathan Miller

video electroencephalography (EEG) results are typical of TLE. The purpose of this study is to examine stereoelectroencephalography (SEEG) localization of ictal activity and surgical outcome after temporal lobe surgery among a homogeneous group of patients with normal MRI, normal memory and semiology, and EEG typical for TLE. Methods Patient Population Consecutive patients undergoing implantation of SEEG electrodes into the temporal lobe for evaluation of medically intractable epilepsy were identified from a prospectively maintained clinical database. Each

Restricted access

Hannah E. Goldstein, Brett E. Youngerman, Belinda Shao, Cigdem I. Akman, Arthur M. Mandel, Danielle K. McBrian, James J. Riviello, Sameer A. Sheth, Guy M. McKhann and Neil A. Feldstein

pediatric invasive seizure monitoring to stereoelectroencephalography (SEEG). SEEG is not a new technique; it has been used in Europe, primarily in France and Italy, since the 1960s. 3 , 4 , 7 , 9 , 15 , 17 , 18 , 25 , 27 , 29 , 34 However, this approach has only recently been incorporated into epilepsy surgery practice in North America. Gonzalez-Martinez and colleagues at the Cleveland Clinic have published a robust series of both adult and a subset of pediatric epilepsy surgery patients who underwent SEEG rather than subdural grid and strip invasive seizure monitoring

Restricted access

Roman Rodionov, Aidan O’Keeffe, Mark Nowell, Michele Rizzi, Vejay N. Vakharia, Victoria Wykes, Sofia H. Eriksson, Anna Miserocchi, Andrew W. McEvoy, Sebastien Ourselin and John S. Duncan

A pproximately 25% of individuals with refractory focal epilepsy who may benefit from epilepsy surgery require intracranial electrodes to localize and delineate the epileptogenic zone. The electrode implantation follows the formulation of a strategy devised by the multidisciplinary team. The safety of stereoelectroencephalography (SEEG) depends on the planned trajectories and the accuracy of implementation of the plan. With a highly accurate implantation technique, plans that may be considered too risky if implantation is not accurate may still be performed. The

Restricted access

Allen L. Ho, Yagmur Muftuoglu, Arjun V. Pendharkar, Eric S. Sussman, Brenda E. Porter, Casey H. Halpern and Gerald A. Grant

S tereoelectroencephalography (SEEG) allows for direct electrical recording from cerebral structures to provide high-resolution localization of epileptogenic zones. Its use in drug-resistant epilepsy evaluation and treatment has increased because safety, accuracy, and efficacy have been well established in both adult 5 and pediatric populations. 7 , 8 , 11 Development of robot-guidance technology has greatly enhanced the efficiency of this procedure, allowing for placement of a greater number of depth electrodes in a shorter amount of time, without sacrificing

Restricted access

Pierre Bourdillon, Claude-Edouard Châtillon, Alexis Moles, Sylvain Rheims, Hélène Catenoix, Alexandra Montavont, Karine Ostrowsky-Coste, Sebastien Boulogne, Jean Isnard and Marc Guénot

developed a strong interest in the mapping of brain networks through his primary interest in psychiatry. 3 Therefore, when Talairach got involved in epilepsy research, he imagined a stereotactic methodology allowing prolonged intracranial electroencephalography (EEG) for recording epileptic networks, namely stereoelectroencephalography (SEEG). He developed this procedure with Gabor Szikla, and the use of angiography to maximize vascular safety by preventing damage to blood vessels was an obsession. 27 Indeed, after 300 procedures, their methodology appeared to be one of

Restricted access

Michael C. Dewan, Robert Shults, Andrew T. Hale, Vishad Sukul, Dario J. Englot, Peter Konrad, Hong Yu, Joseph S. Neimat, William Rodriguez, Benoit M. Dawant, Srivatsan Pallavaram and Robert P. Naftel

superficial onset, subdural electrodes may provide inadequate localization to permit a safe and effective resection. Stereotactic electroencephalography (SEEG) allows for interrogation of deeper structures and epileptic networks. SEEG electrodes were originally inserted using a Talairach frame. Techniques have evolved to using stereotactic frames, frameless stereotaxy, and robotic insertion; each of these techniques carries its own set of limitations, including prolonged operative time, accuracy shortcomings, and prohibitive device costs, respectively. In this report we

Full access

Francesco Cardinale and Massimo Cossu

same search query reported by the authors, and all studies listed in Table 1 were included in our query results. TABLE 1 Some studies fulfilling the eligibility criteria but not included in the authors' results * Authors & Year No. of Procedures No. of Electrodes & Type Direct Morbidity (major, minor) † No. of Deaths SEEG  Munari et al, 1994 70 714 SEEG electrodes 1.4%, 1.4%  Cossu et al., 2005 215 2666 SEEG electrodes 2.8%, 2.8%  Cossu et al., 2012 ‡ 16 192 SEEG electrodes 1

Free access

Francesco Cardinale, Michele Rizzi, Piergiorgio d’Orio, Giuseppe Casaceli, Gabriele Arnulfo, Massimo Narizzano, Davide Scorza, Elena De Momi, Michele Nichelatti, Daniela Redaelli, Maurizio Sberna, Alessio Moscato and Laura Castana

S urgery is an effective option for the treatment of drug-resistant epilepsy 28 for patients in whom the epileptogenic zone, defined as “the site of the beginning and of primary organization of the epileptic seizures,” 21 can be safely removed. Despite advancements in the presurgical noninvasive workup, a number of patients still undergo intracranial electroencephalography. 13 , 16 , 17 , 19 , 21 , 22 Stereoelectroencephalography (SEEG) is one of the most prominent methods for direct recording of brain electrical activity and has recently spread beyond the

Restricted access

Didier Scavarda, Tiago Cavalcante, Agnès Trébuchon, Anne Lépine, Nathalie Villeneuve, Nadine Girard, Aileen McGonigal, Mathieu Milh and Fabrice Bartolomei

but does not improve the cognitive prognosis. 34 More conservative disconnection procedures have been proposed in cases of large lesions involving the posterior quadrant of the hemisphere, such as temporo-parietal-occipital disconnection. 11 , 30 Here, we describe a new partial disconnection technique that includes the perimotor cortex (suprainsular disconnection) and is guided by stereoelectroencephalography (SEEG) results in 6 patients who presented with stroke in early life and severe drug-resistant epilepsy. We have termed this technique “tailored suprainsular

Restricted access

Taylor J. Abel, René Varela Osorio, Ricardo Amorim-Leite, Francois Mathieu, Philippe Kahane, Lorella Minotti, Dominique Hoffmann and Stephan Chabardes

I n patients with focal pharmacoresistant epilepsy, the epileptogenic zone (EZ) is defined as that region of brain tissue that when removed results in seizure freedom. Thus, safe and accurate identification of the EZ is the crux of effective epilepsy surgery. When the EZ cannot be identified by noninvasive means (e.g., video electroencephalography and MRI), implantation of intracranial electrodes to record directly from the brain is sometimes necessary to delineate the EZ. Stereoelectroencephalography (SEEG) is the method of planning and implanting percutaneous