International Guest Speakers include


                                  Aviva Abosch (USA)


                                 Basant K Misra (India)

                                 Dr. Misra qualified from his medical university in Odisha as the Best Graduate with 3 gold medals. Subsequently he                                  did his postgraduate training in General surgery from Delhi University and completed his Neurosurgery Residency                                    and Board from All India Institute of Medical Sciences, New Delhi in 1983. He was the Professor (Additional) of                                            Neurosurgery at Sree Chitra Institute Trivandrum before moving to his current position in Mumbai. Presently he is                                    the Chairman of the Department of Neurosurgery and Head of Gamma Knife Surgery at P.D. Hinduja National                                           Hospital and Medical Research Centre, Mumbai, India and was Clinical Professor, Dept. of Neurosurgery, Macquarie                                 University, NSW, Australia. Dr. Misra is also Head, Dept. of Neurosurgery, Hinduja Health Care Surgical, Mumbai. He was a Commonwealth Scholar to Edinburgh, UK from 1984-1987 and Registrar, NHS, UK from 1985-1987. He has attended as Visiting Faculty at Centres across the USA, Germany, Japan, Taiwan, Turkey and India, and examines in neurosurgery at prestigious centres across India.
Dr. Misra is currently the Chairman of Education Committee and Treasurer of Asian Australasian Society of Neurological Surgeons; Secretary, WFNS and President Elect, World Federation of Skull Base Societies. He has also served as the President of the Neurological Society of India, President of the Asian Congress of Neurological Surgery, Skull Base Surgery Society of India, Indian Society of Cerebrovascular Surgery and Bombay Neurosciences Association. He is an active member of many national and international neurosurgical societies. Dr. Misra's fields of interest include skull base and cerebrovascular neurosurgery. He has authored more than 200 scientific papers and presented at, and convened, many national and international meetings.    

                                 Ian Harris (Australia)

                                 James T Rutka (Canada) 

                                 Born in Toronto, and educated at Princeton University and Queen's University Medical School, Dr. Rutka did an                                          internship at McGill University before entering the University of Toronto Neurosurgery Training Program in 1982.                                      His training included a research fellowship at the Brain Tumour Research Centre, the University of California San                                        Francisco where he obtained his PhD in Experimental Pathology. Upon conclusion of his neurosurgical residency,                                      Dr. Rutka did a clinical fellowship in microvascular neurosurgery with Dr Kenichiro Sugita at the University of                                              Nagoya, and a post-doctoral research fellowship in molecular immunology at Juntendo University, Tokyo.

Dr. Rutka assumed his appointment in the Department of Surgery, Division of Neurosurgery in 1990, and has been on the surgical staff at the Hospital for Sick Children in the Division of Pediatric Neurosurgery since that time. Dr. Rutka's primary research and clinical interests relate to the science and surgery of human brain tumours. His laboratory interests lie in the molecular biology of human brain tumours - specifically in the determination of the mechanisms by which brain tumours grow and invade. His recent clinical interests have centred on the surgical treatment of epilepsy in children. He has over 400 peer reviewed publications.

In 1999, Dr. Rutka was promoted to Professor in the Department of Surgery, the University of Toronto, and was appointed to the Dan Family Chair in the Division of Neurosurgery -- a position he held until 2011.  In 2009, he was the Honored Guest at the Congress of Neurological Surgeons’ Annual Meeting.  In 2010 - 11, Dr Rutka served as President of the American Association of Neurological Surgeons.  In 2011, he became President of the World Academy of Neurological Surgery, President of the American Academy of Neurological Surgery, and Fellow of the Royal Society of Canada.  That same year, he was appointed as the RS McLaughlin Professor and Chair of the Department of Surgery at the University of Toronto.  In 2013, he became the first Canadian to be appointed as Editor-in-Chief of the Journal of Neurosurgery, and was inducted as a Member of the Order of Ontario.  In 2015, he received the Margolese National Brain Disorders Prize from the University of British Columbia, the Robert L. Noble Award from the Canadian Cancer Society, and was made an Officer of the Order of Canada.  In 2017, he received an honorary degree, Doctor of Science, from his Medical School Alma Mater, Queen’s University.  Dr. Rutka is married to Mari Rutka. Together they have three children:  Daniel, Hana and Maris            

Following his immigration to Israel in 1991, Dr Spektor completed a second neurosurgical residency at the Hadassah-Hebrew University Medical Center in Jerusalem under the guidance of Professor Felix Umansky (1991-1997), and then traveled to the Oregon Health Sciences University in Portland for a joint clinical and research fellowship in neurosurgery and otolaryngology under Professor Johnny Delashaw (1998-1999). In Oregon, Dr Spektor conducted research in neuroanatomy and surgical approaches to the skull base. Since his return to Hadassah, he focused his clinical and research work around skull base, neurovascular, and neuroendoscopic surgery.

Since beginning his professional work in neurosurgery in 1981, Dr. Spektor has performed thousands of surgical procedures for the treatment of a wide range of tumors and vascular lesions at the base of the brain, notably meningiomas in all locations, gliomas, pituitary adenomas, acoustic neuromas, epidermoid tumors, craniopharyngiomas, tumors in difficult locations such as para-brainstem lesions, cerebral aneurysms, vascular malformations, and microvascular bypass surgery for Moyamoya disease.

Dr. Spektor is an Associate Professor at the Hebrew University, with over 70 articles published in peer-reviewed journals. In 2010 he was appointed Director of the Center for Skull Base Surgery at Hadassah. Dr Spektor is an Israeli representative in the Training Committee of the European Association for Neurosurgical Societies (EANS).

He currently is the holder of 2 academic Hospital and University Chairs, The Crean Hotson Chair in Skull Base Surgery, the first and only Academic Chair in Skull Base Surgery in Canada.  He also holds The Alan and Susan Hudson Chair in Neuro-Oncology. Dr. Gentili has been a dedicated teacher and Educator having received numerous teaching awards. He is a member of local, national and international Committees on education. He is currently the Director of under-graduate Surgical Education at University Health Network. Dr. Gentili is a member of numerous Neurosurgical Societies and is on the Editorial Board of several International Journals.  Dr. Gentili has authored more than 100 publications and over 25 book chapters.

He has received numerous honors/awards during his career including the Gold Medal from the University of Messina and the College of Physicians and Surgeons of Ontario Council Award recognizing clinical excellence in patient care. He has been the honored guest at many international meetings and has been Visiting Professor at multiple institutions in both North America and abroad. He was the Special invited Guest on two occasions of the North American Skull Base Society. He is an honorary member of both the Italian Neurosurgical Society and Spanish Neurosurgical Society.

Dr. Gentili’s main interests are in Skull Base Surgery using both open and minimally invasive endoscopic techniques, Pituitary surgery and Radiosurgery.


Ian Harris is Professor of Orthopaedic Surgery at UNSW and is a clinician and researcher based at Liverpool Hospital in Sydney’s southwest. His research interests centre on the effectiveness of surgery and how this can be measured. He also has interests in outcome registries and randomised trials, including placebo surgical trials. He is author of the book Surgery, the Ultimate Placebo and is a frequent national and international invited speaker, often challenging the status quo and demanding medicine to be held to a higher scientific standard.

Sergey Spektor (Israel)

Dr Sergey Spektor received his medical and neurosurgical training in Yekaterinburg, Russia. He served as an attending neurosurgeon in Yekaterinburg from 1983-1991, simultaneously completing a PhD in Medical Sciences at the Burdenko Neurosurgical Institute in Moscow in 1989. For his doctoral research he studied the physiological and pathophysiological responses of the brain following microvascular extra-intracranial bypass (EC/IC) for the treatment of occlusive cerebrovascular disease and aneurysms.

Fred Gentili (Canada)

Dr. Gentili joined the Neurosurgical staff at the Toronto General Hospital in 1982 and is currently Full Professor in the Division of Neurosurgery at the Toronto Western Hospital, University Health Network and University of Toronto. Dr. Gentili is a founding member of the North American Skull Base Society and a member of the Skull Base Surgery Committee of the World Federation of Neurosurgical Societies (WFNS) as well as a member of the WFNS Neuro-Endoscopy Committee.  He helped establish the first interdisciplinary Skull Base Surgery Center in Canada at the University of Toronto and has promoted in collaboration with his ENT colleagues innovations in skull base surgery including endonasal endoscopic skull base techniques.

2016 International Guests with Tanya Yuen, Andrew Kaye and Kate Drummond. 

Aviva Abosch, MD, PhD is Professor of Neurosurgery, Department of Neurosurgery Vice Chair for Research, and Director of the Stereotactic and Epilepsy Surgery Program at the University of Colorado.  Her clinical subspecialties include surgery for movement, and neuropsychiatric disorders, and for epilepsy.  Nationally, Dr. Abosch serves as Past President of the American Society of Stereotactic and Functional Neurosurgery (ASSFN), and is a member of the Scientific Program Committee of the American Association of Neurological Surgeons.  Her current research is focused on the role of the basal ganglia function in neurological diseases, and she translates neurophysiological findings from the operating room to advancing patient care. 

Controversies in Neurosurgery 2018