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Pilioneta M, Chen HH, Losito E, Bourgeois M, Chémaly N, Eiserman M, Guida L, Dangouloff-Ros V, Fumagalli L, Kaminska A, Boddaert N, Auvin S, Nabbout R, Sainte-Rose C, Blauwblomme T. Interhemispheric Vertical Hemispherotomy: Technique, Outcome, and Pitfalls-A Bicentric Retrospective Case Series of 39 Cases. Oper Neurosurg (Hagerstown) 2024; 26:413-422. [PMID: 37994857 DOI: 10.1227/ons.0000000000000992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Accepted: 08/23/2023] [Indexed: 11/24/2023] Open
Abstract
BACKGROUND AND OBJECTIVES When seizure onset affects a whole hemisphere, hemispheric disconnections are efficient and safe procedures. However, both lateral peri-insular hemispherotomy and vertical paramedian hemispherotomy approaches report a failure rate around 20%, which can be explained by residual connections giving rise to persistent seizures. In this study, we present the interhemispheric vertical hemispherotomy (IVH), a technical variation of the vertical paramedian hemispherotomy approach, that aims to increase seizure control avoiding residual connections while exposing the corpus callosum. METHODS This is a retrospective study of IVH in two centers, with analysis of clinical and MRI data and outcomes. A detailed description of the technique is provided with a video. RESULTS IVH was performed in 39 children. The mean age at surgery was 7.2 years, and etiologies were as follows: malformations of cortical development (n = 14), Rasmussen's encephalitis (n = 10), stroke (n = 10), post-traumatic (3), and Sturge-Weber Syndrome (2). Hemispheric disconnection was complete on postoperative MRI in 34 cases. There was no mortality, hydrocephalus occurred in one case, and subdural collection occurred in four cases. A second surgery was performed in four cases because of seizure relapse (n = 3) and/or incomplete disconnection on MRI (n = 4). With a mean follow-up of 3.2 years, International League Against Epilepsy class I epilepsy outcome was obtained for 37/39 patients. CONCLUSION IVH is a safe and effective variation of the vertical approaches for hemispheric disconnection. It allows a good exposure and anatomic control of the corpus callosum, which is a frequent site of incomplete disconnection. IVH may be limited by the thalamic volume and the ventricular size, notably in hemimegalencephaly cases.
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Affiliation(s)
- Martin Pilioneta
- Hôpital Necker, Assistance Publique Hôpitaux de Paris, Paris , France
| | | | - Emma Losito
- Hôpital Necker, Assistance Publique Hôpitaux de Paris, Paris , France
| | - Marie Bourgeois
- Hôpital Necker, Assistance Publique Hôpitaux de Paris, Paris , France
| | - Nicole Chémaly
- Hôpital Necker, Assistance Publique Hôpitaux de Paris, Paris , France
| | - Monika Eiserman
- Hôpital Necker, Assistance Publique Hôpitaux de Paris, Paris , France
| | - Lelio Guida
- Hôpital Necker, Assistance Publique Hôpitaux de Paris, Paris , France
- Université de Paris Cité, Paris , France
| | - Volodia Dangouloff-Ros
- Hôpital Necker, Assistance Publique Hôpitaux de Paris, Paris , France
- Université de Paris Cité, Paris , France
| | - Luca Fumagalli
- Hôpital Necker, Assistance Publique Hôpitaux de Paris, Paris , France
| | - Anna Kaminska
- Hôpital Necker, Assistance Publique Hôpitaux de Paris, Paris , France
| | - Nathalie Boddaert
- Hôpital Necker, Assistance Publique Hôpitaux de Paris, Paris , France
- Université de Paris Cité, Paris , France
| | - Stéphane Auvin
- Université de Paris Cité, Paris , France
- Hôpital Robert Debré, Assistance Publique Hôpitaux de Paris, Paris , France
| | - Rima Nabbout
- Hôpital Necker, Assistance Publique Hôpitaux de Paris, Paris , France
- Université de Paris Cité, Paris , France
| | | | - Thomas Blauwblomme
- Hôpital Necker, Assistance Publique Hôpitaux de Paris, Paris , France
- Université de Paris Cité, Paris , France
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De Benedictis A, Marasi A, Rossi-Espagnet MC, Napolitano A, Parrillo C, Fracassi D, Baldassari G, Borro L, Bua A, de Palma L, Luisi C, Pepi C, Savioli A, Luglietto D, Marras CE. Vertical Hemispherotomy: Contribution of Advanced Three-Dimensional Modeling for Presurgical Planning and Training. J Clin Med 2023; 12:jcm12113779. [PMID: 37297974 DOI: 10.3390/jcm12113779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Revised: 04/22/2023] [Accepted: 04/22/2023] [Indexed: 06/12/2023] Open
Abstract
Vertical hemispherotomy is an effective treatment for many drug-resistant encephalopathies with unilateral involvement. One of the main factors influencing positive surgical results and long-term seizure freedom is the quality of disconnection. For this reason, perfect anatomical awareness is mandatory during each step of the procedure. Although previous groups attempted to reproduce the surgical anatomy through schematic representations, cadaveric dissections, and intraoperative photographs and videos, a comprehensive understanding of the approach may still be difficult, especially for less experienced neurosurgeons. In this work, we reported the application of advanced technology for three-dimensional (3D) modeling and visualization of the main neurova-scular structures during vertical hemispherotomy procedures. In the first part of the study, we built a detailed 3D model of the main structures and landmarks involved during each disconnection phase. In the second part, we discussed the adjunctive value of augmented reality systems for the management of the most challenging etiologies, such as hemimegalencephaly and post-ischemic encephalopathy. We demonstrated the contribution of advanced 3D modeling and visualization to enhance the quality of anatomical representation and interaction between the operator and model according to a surgical perspective, optimizing the quality of presurgical planning, intraoperative orientation, and educational training.
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Affiliation(s)
- Alessandro De Benedictis
- Neurosurgery Unit, Bambino Gesù Children's Hospital, IRCCS, 4, Piazza S. Onofrio, 00165 Rome, Italy
| | - Alessandra Marasi
- Neurosurgery Unit, Bambino Gesù Children's Hospital, IRCCS, 4, Piazza S. Onofrio, 00165 Rome, Italy
| | | | - Antonio Napolitano
- Medical Physics Unit, Bambino Gesù Children's Hospital, IRCCS, 4, Piazza S. Onofrio, 00165 Rome, Italy
| | - Chiara Parrillo
- Medical Physics Unit, Bambino Gesù Children's Hospital, IRCCS, 4, Piazza S. Onofrio, 00165 Rome, Italy
| | - Donatella Fracassi
- Medical Physics Unit, Bambino Gesù Children's Hospital, IRCCS, 4, Piazza S. Onofrio, 00165 Rome, Italy
| | - Giulia Baldassari
- Medical Physics Unit, Bambino Gesù Children's Hospital, IRCCS, 4, Piazza S. Onofrio, 00165 Rome, Italy
| | - Luca Borro
- Multimodal Imaging Unit, Bambino Gesù Children's Hospital, IRCCS, 4, Piazza S. Onofrio, 00165 Rome, Italy
| | - Antonella Bua
- Neurosurgery Unit, Bambino Gesù Children's Hospital, IRCCS, 4, Piazza S. Onofrio, 00165 Rome, Italy
| | - Luca de Palma
- Clinical and Experimental Neurology, Bambino Gesù Children's Hospital, IRCCS, 4, Piazza S. Onofrio, 00165 Rome, Italy
| | - Concetta Luisi
- Clinical and Experimental Neurology, Bambino Gesù Children's Hospital, IRCCS, 4, Piazza S. Onofrio, 00165 Rome, Italy
| | - Chiara Pepi
- Clinical and Experimental Neurology, Bambino Gesù Children's Hospital, IRCCS, 4, Piazza S. Onofrio, 00165 Rome, Italy
| | - Alessandra Savioli
- Intensive Care Unit, Bambino Gesù Children's Hospital, IRCCS, 4, Piazza S. Onofrio, 00165 Rome, Italy
| | - Davide Luglietto
- Neurosurgery Unit, Bambino Gesù Children's Hospital, IRCCS, 4, Piazza S. Onofrio, 00165 Rome, Italy
| | - Carlo E Marras
- Neurosurgery Unit, Bambino Gesù Children's Hospital, IRCCS, 4, Piazza S. Onofrio, 00165 Rome, Italy
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Fallah A, Lewis E, Ibrahim GM, Kola O, Tseng CH, Harris WB, Chen JS, Lin KM, Cai LX, Liu QZ, Lin JL, Zhou WJ, Mathern GW, Smyth MD, O'Neill BR, Dudley RWR, Ragheb J, Bhatia S, Delev D, Ramantani G, Zentner J, Wang AC, Dorfer C, Feucht M, Czech T, Bollo RJ, Issabekov G, Zhu H, Connolly M, Steinbok P, Zhang JG, Zhang K, Hidalgo ET, Weiner HL, Wong-Kisiel L, Lapalme-Remis S, Tripathi M, Sarat Chandra P, Hader W, Wang FP, Yao Y, Champagne PO, Brunette-Clément T, Guo Q, Li SC, Budke M, Pérez-Jiménez MA, Raftopoulos C, Finet P, Michel P, Schaller K, Stienen MN, Baro V, Cantillano Malone C, Pociecha J, Chamorro N, Muro VL, von Lehe M, Vieker S, Oluigbo C, Gaillard WD, Al-Khateeb M, Al Otaibi F, Krayenbühl N, Bolton J, Pearl PL, Weil AG. Comparison of the real-world effectiveness of vertical versus lateral functional hemispherotomy techniques for pediatric drug-resistant epilepsy: A post hoc analysis of the HOPS study. Epilepsia 2021; 62:2707-2718. [PMID: 34510448 PMCID: PMC9290517 DOI: 10.1111/epi.17021] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 06/24/2021] [Accepted: 07/15/2021] [Indexed: 11/26/2022]
Abstract
Objective This study was undertaken to determine whether the vertical parasagittal approach or the lateral peri‐insular/peri‐Sylvian approach to hemispheric surgery is the superior technique in achieving long‐term seizure freedom. Methods We conducted a post hoc subgroup analysis of the HOPS (Hemispheric Surgery Outcome Prediction Scale) study, an international, multicenter, retrospective cohort study that identified predictors of seizure freedom through logistic regression modeling. Only patients undergoing vertical parasagittal, lateral peri‐insular/peri‐Sylvian, or lateral trans‐Sylvian hemispherotomy were included in this post hoc analysis. Differences in seizure freedom rates were assessed using a time‐to‐event method and calculated using the Kaplan–Meier survival method. Results Data for 672 participants across 23 centers were collected on the specific hemispherotomy approach. Of these, 72 (10.7%) underwent vertical parasagittal hemispherotomy and 600 (89.3%) underwent lateral peri‐insular/peri‐Sylvian or trans‐Sylvian hemispherotomy. Seizure freedom was obtained in 62.4% (95% confidence interval [CI] = 53.5%–70.2%) of the entire cohort at 10‐year follow‐up. Seizure freedom was 88.8% (95% CI = 78.9%–94.3%) at 1‐year follow‐up and persisted at 85.5% (95% CI = 74.7%–92.0%) across 5‐ and 10‐year follow‐up in the vertical subgroup. In contrast, seizure freedom decreased from 89.2% (95% CI = 86.3%–91.5%) at 1‐year to 72.1% (95% CI = 66.9%–76.7%) at 5‐year to 57.2% (95% CI = 46.6%–66.4%) at 10‐year follow‐up for the lateral subgroup. Log‐rank test found that vertical hemispherotomy was associated with durable seizure‐free progression compared to the lateral approach (p = .01). Patients undergoing the lateral hemispherotomy technique had a shorter time‐to‐seizure recurrence (hazard ratio = 2.56, 95% CI = 1.08–6.04, p = .03) and increased seizure recurrence odds (odds ratio = 3.67, 95% CI = 1.05–12.86, p = .04) compared to those undergoing the vertical hemispherotomy technique. Significance This pilot study demonstrated more durable seizure freedom of the vertical technique compared to lateral hemispherotomy techniques. Further studies, such as prospective expertise‐based observational studies or a randomized clinical trial, are required to determine whether a vertical approach to hemispheric surgery provides superior long‐term seizure outcomes.
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Affiliation(s)
- Aria Fallah
- Department of Neurosurgery, David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, California, USA
| | - Evan Lewis
- Neurology Center of Toronto, Toronto, Ontario, Canada
| | - George M Ibrahim
- Division of Neurosurgery, The Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
| | - Olivia Kola
- Department of Neurosurgery, David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, California, USA
| | - Chi-Hong Tseng
- Department of Medicine, David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, California, USA
| | - William B Harris
- Department of Medicine, John A. Burns School of Medicine at University of Hawaii, Honolulu, Hawaii, USA
| | - Jia-Shu Chen
- Department of Medicine, Warren Alpert Medical School of Brown University, Providence, Rhode Island, USA
| | - Kao-Min Lin
- Department of Functional Neurosurgery, Xiamen Humanity Hospital, Xiamen, China
| | - Li-Xin Cai
- Department of Pediatric Epilepsy Center, Peking University First Hospital, Beijing, China
| | - Qing-Zhu Liu
- Department of Pediatric Epilepsy Center, Peking University First Hospital, Beijing, China
| | - Jiu-Luan Lin
- Department of Epilepsy Center, Yuquan Hospital, Tsinghua University, Beijing, China
| | - Wen-Jing Zhou
- Department of Epilepsy Center, Yuquan Hospital, Tsinghua University, Beijing, China
| | - Gary W Mathern
- Department of Neurosurgery, David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, California, USA
| | - Matthew D Smyth
- Department of Neurological Surgery, St. Louis Children's Hospital, St. Louis, Missouri, USA
| | - Brent R O'Neill
- Department of Neurosurgery, Children's Hospital Colorado, Aurora, Colorado, USA
| | - Roy W R Dudley
- Division of Neurosurgery, Department of Pediatric Surgery, Montreal Children's Hospital, McGill University Health Centre, Montreal, Quebec, Canada
| | - John Ragheb
- Department of Neurosurgery, Nicklaus Children's Hospital, Miami, Florida, USA
| | - Sanjiv Bhatia
- Department of Neurosurgery, Nicklaus Children's Hospital, Miami, Florida, USA
| | - Daniel Delev
- Department of Neurosurgery, University Medical Center Freiburg and Medical Faculty, University of Freiburg, Freiburg, Germany
| | - Georgia Ramantani
- Department of Neurosurgery, University Medical Center Freiburg and Medical Faculty, University of Freiburg, Freiburg, Germany.,Department of Neuropediatrics, University Children's Hospital Zurich, Zurich, Switzerland
| | - Josef Zentner
- Department of Neurosurgery, University Medical Center Freiburg and Medical Faculty, University of Freiburg, Freiburg, Germany
| | - Anthony C Wang
- Department of Neurosurgery, David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, California, USA
| | - Christian Dorfer
- Department of Neurosurgery, Medical University Vienna, Vienna, Austria
| | - Martha Feucht
- Department of Pediatrics, Medical University Vienna, Vienna, Austria
| | - Thomas Czech
- Department of Neurosurgery, Medical University Vienna, Vienna, Austria
| | - Robert J Bollo
- Division of Pediatric Neurosurgery, Department of Neurosurgery, Primary Children's Hospital, Salt Lake City, Utah, USA
| | - Galymzhan Issabekov
- Department of Functional Neurosurgery, Beijing Institute of Functional Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Hongwei Zhu
- Department of Functional Neurosurgery, Beijing Institute of Functional Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Mary Connolly
- Division of Neurosurgery, Department of Surgery, BC Children's Hospital and University of British Columbia, Vancouver, British Columbia, Canada
| | - Paul Steinbok
- Division of Neurosurgery, Department of Surgery, BC Children's Hospital and University of British Columbia, Vancouver, British Columbia, Canada
| | - Jian-Guo Zhang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Kai Zhang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Eveline Teresa Hidalgo
- Division of Pediatric Neurosurgery, Department of Surgery, Hassenfeld Children's Hospital, NYU Langone Health, New York, New York, USA
| | - Howard L Weiner
- Baylor College of Medicine, Texas Children's Hospital, Houston, Texas, USA
| | - Lily Wong-Kisiel
- Division of Child Neurology and Epilepsy, Mayo Clinic College of Medicine, Rochester, Minnesota, USA
| | - Samuel Lapalme-Remis
- Division of Neurology, Department of Medicine, University of Montreal Hospital Centre, Montreal, Quebec, Canada
| | - Manjari Tripathi
- Department of Neurosurgery, All India Institute of Medical Sciences, New Delhi, India
| | - Poodipedi Sarat Chandra
- Department of Neurosurgery (Center of Excellence for Epilepsy & Magnetoencephalography), All India Institute of Medical Sciences and National Brain Research Center, New Delhi, India
| | - Walter Hader
- Division of Neurosurgery, Department of Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada
| | - Feng-Peng Wang
- Department of Functional Neurosurgery, Xiamen Humanity Hospital, Xiamen, China
| | - Yi Yao
- Department of Neurosurgery, Guangdong Shenzhen Children Hospital, Shenzhen, China
| | | | | | - Qiang Guo
- Department of Neurosurgery, Guangdong Sanjiu Brain Hospital, Guangzhou Shi, China
| | - Shao-Chun Li
- Department of Neurosurgery, Guangdong Sanjiu Brain Hospital, Guangzhou Shi, China
| | - Marcelo Budke
- Department of Neurosurgery, Niño Jesus University Children's Hospital, Madrid, Spain
| | | | - Christian Raftopoulos
- Department of Neurosurgery, Brussels Saint-Luc University Hospital, Brussels, Belgium
| | - Patrice Finet
- Department of Neurosurgery, Brussels Saint-Luc University Hospital, Brussels, Belgium
| | - Pauline Michel
- Department of Neurosurgery, Brussels Saint-Luc University Hospital, Brussels, Belgium
| | - Karl Schaller
- Division of Neurosurgery, Department of Clinical Neurosciences, Geneva University Hospitals, Geneva, Switzerland
| | - Martin N Stienen
- Department of Neurosurgery, University Hospital Zurich and Clinical Neuroscience Center, University of Zurich, Zurich, Switzerland
| | - Valentina Baro
- Academic Neurosurgery, Department of Neuroscience, University of Padova, Padova, Italy
| | - Christian Cantillano Malone
- Department of Neurosurgery, Pontifical Catholic University of Chile, Sotero del Rio Hospital, Santiago, Chile
| | - Juan Pociecha
- Epilepsy Department, Neurology Neurophysiology Epilepsy Service Foundation Against Childhood Neurological Diseases, Buenos Aires, Argentina
| | - Noelia Chamorro
- Epilepsy Department, Neurology Neurophysiology Epilepsy Service Foundation Against Childhood Neurological Diseases, Buenos Aires, Argentina
| | - Valeria L Muro
- Epilepsy Department, Neurology Neurophysiology Epilepsy Service Foundation Against Childhood Neurological Diseases, Buenos Aires, Argentina
| | - Marec von Lehe
- Department of Neurosurgery, Brandenburg Medical School, Neuruppin, Germany
| | - Silvia Vieker
- Department of Neurosurgery, Brandenburg Medical School, Neuruppin, Germany
| | - Chima Oluigbo
- Department of Neurosurgery, Children's National Medical Center, Washington, District of Columbia, USA
| | - William D Gaillard
- Divisions of Child Neurology and Epilepsy and Neurophysiology, Children's National Medical Center, Washington, District of Columbia, USA
| | - Mashael Al-Khateeb
- Department of Neurosciences, King Faisal Specialist Hospital and Research Center, Alfaisal University, Riyadh, Saudi Arabia
| | - Faisal Al Otaibi
- Department of Neurosciences, King Faisal Specialist Hospital and Research Center, Alfaisal University, Riyadh, Saudi Arabia
| | - Niklaus Krayenbühl
- Department of Neurosurgery, University Hospital Zurich and Clinical Neuroscience Center, University of Zurich, Zurich, Switzerland
| | - Jeffrey Bolton
- Department of Neurology, Boston Children's Hospital, Boston, Massachusetts, USA
| | - Phillip L Pearl
- Department of Neurology, Boston Children's Hospital, Boston, Massachusetts, USA
| | - Alexander G Weil
- Department of Neurosurgery, Saint Justine University Hospital Centre, Montreal, Quebec, Canada
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