Head of Attending Neurosurgeons:

Prof. Dr. med. V. Gerganov
gerganov@ini-hannover.de

Attending Neurosurgeons:

Dr. med. M. Giordano
giordano@ini-hannover.de

Dott. V. Paternó
paterno@ini-hannover.de

Board Certified Neurosurgeons:

O. Almarzooq
almarzooq@ini-hannover.de

Dott. M. Gallieni
gallieni@ini-hannover.de

Dr. med. I. Petrakakis
petrakakis@ini-hannover.de

Neurosurgical Residents:

Dr. med. A. Hadid
hadid@ini-hannover.de

PD Dr. med G. Baltsavias is the Director of Endovascular Neurosurgery at the INI – International Neuroscience Institute® in Hannover .

He is a neurosurgeon specialized in neuroendovascular operations (embolizations).

Dr. Baltsavias completed his basic neurosurgical training in Greece at General hospital of Athens in 1997 and subsequently received his neuroendovascular training in several leading centers of Interventional Neuroradiology – Endovascular Neurosurgery, at

• the University Hospital of Vienna (AKH), Neurosurgical Dept, Vienna, Austria (1997-8) under Prof. W. Koos and Prof. B. Richling
• the Beth Israel Medical Center, Dept. of Neuroendovascular Surgery, NYC, USA (1998) under Prof. A. Berenstein
• the Radcliffe Infirmary, Oxford University, Neuroradiology Dept, Oxford, UK (1999) under Prof. J. Byrne and Dr. A. Molyneux
• the Christian Doppler Medical Center, Neurosurgical Dept. Salzburg, Austria (2000) under Prof. B. Richling

He founded and served as the Head of the Neuroendovascular Unit at the Interbalkan European Medical Center, Thessaloniki, Greece from 2001 to 2008.

During this period, he completed the distinguished PL Lasjaunias’s Master Course in Neurovascular Diseases (2005-7). In the same frame, he completed his Dissertation on endovascular treatment of giant basilar aneurysms at Service de Neuroradiologie, Hôpital Lariboisière, Paris, France (2007) under Prof. E. Houdart and he was granted the Diplome Inter Universitaire – International Diploma in Neurovascular Disease from Paris XI Sud University and Mahidol University in 2007.

In 2009, Dr. Baltsavias was appointed Oberarzt at the eminent Institute of Neuroradiology, University Hospital Zurich, under Prof. A. Valavanis. In this department, he completed his Medical Doctorate in 2011. In 2016, his Habilitation on Dural Arteriovenous Fistulae was approved by the Medical School of Zurich University and the “venia legendi” was bestowed. Since then and until October 2017, Dr. Baltsavias served as Leitender Arzt and the Head of Interventional Neuroradiology in the department of Neuroradiology, University Hospital of Zurich, Switzerland.

Since November 2017, he is the Director of Endovascular Neurosurgery at the INI – International Neuroscience Institute® in Hannover , Germany.

PD Dr. med G. Baltsavias is an expert with great experience in the whole spectrum of endovascular treatment of Neurovascular diseases and Head and Neck vascular pathologies and more specifically in:

• Cerebral aneurysms
• Cerebral Arteriovenous Malformations (AVM)
• Cranial Dural Arteriovenous Fistulae (CDAVF)
• Acute Ischemic Stroke Thrombectomies
• Arteriovenous Shunts and Malformations of the V. Galen in newborns and children
• Spinal Arteriovenous Malformations (SAVM) Spinal Dural Arteriovenous Fistulae (SDAVF)
• Stenosis of Neck and Intracranial Vessels
• Traumatic Arteriovenous Fistulae of the Head and Neck
• Hemangiomas and Vascular Malformations of the Head, Face and Neck
• Vascular Tumors of the Brain, Skull base and Neck, i.e. Meningiomas, Hemangioblastomas, Glomus Tumors, Neurinomas, Juvenile Angiofibromas etc.

Baltsavias has been invited in numerous international meetings, workshops and congresses as a speaker. He is a reviewer of several international medical journals as Neurology, AJNR – American Journal of Neuroradiology, Neurosurgical review, Clinical Neurology and Neurosurgery, Interventional Neuroradiology, European Journal of Neurology, BMJ Case reports etc.

He is a member of the World Federation of Interventional and Therapeutic Neuroradiology, European Association of Neurosurgical Societies, American Congress of Neurological Surgeons, Swiss Neuroradiological Society, Hellenic Neurosurgical Society.

Since May 2014, Prof. Concezio Di Rocco has moved to Hannover, Germany to become the Director of Pediatric Neurosurgery at the INI – International Neuroscience Institute®, Prof. Di Rocco is an internationally recognized pediatric neurosurgeon who has performed more that 12,000 neurosurgical operations on brain and spinal cord tumors, hydrocephalus, arachnoid cysts, congenital malformations, craniosynostosis, cerebral and spine malformations ( hemimegalencephaly, cortical dysplasia, lipomyelomeningocele, myelomeningocele, spinal lipoma, Chiari type I malformation), neurophacomatoses, and epileptic disorders.

Current position:
Director of Pediatric Neurosurgery at INI-Hannover, at Otto von Guericke University
World Federation of Neurosurgical Societies Education Committee Co-chairman
Main Editor of the journal Child’s Nervous System

Prof Di Rocco has been President of The International Society for Pediatric Neurosurgery (ISPN), President of The European Society for Pediatric Neurosurgery (ESPN), Vice-President of the European Association of Neurosurgical Society (EANS), Chairman of the Pediatric Committee of the World Federation of Neurosurgical Societies (WFNS). Director of the Department of Pediatrics and Pediatric Neurosciences and of the Department of Neurosciences of the Catholic University Medical School , Rome.

Director of the Institute of Neurosurgery and Speciality School in Neurosurgery, Catholic Unversity Medical School, Rome Winner of the first and only Chair in Pediatric Neurosurgery in Italy.

Prof Di Rocco is Specialist in Neurosurgery and Pediatrics His scientific and clinical activities are testified by more than 390 articles in international peer reviewed journals, books and chapters in books He is the main Editor of Childs’s Nervous System, the Official Journal of the International Society for Pediatric Neurosurgery, European Journal for Pediatric Neurosurgery, Japanese Society for Pediatric Neurosurgey, Korean Society for Pediatric Neurosurgery, Brasilian Society for Pediatric Neurosurgery.

Dr. Bertalanffy is Professor of Neurological Surgery and Director of the Center for Vascular Neurosurgery at the INI – International Neuroscience Institute®, Hannover, Germany. He received his neurosurgical training from the Albert-Ludwigs University of Freiburg im Breisgau, Germany, where he completed with honors a Medical Doctorate in 1986 and obtained the qualification as board certified neurosurgeon in 1990.

Dr. Bertalanffy spent more than 2 years from 1990 to 1992 at the Department of Neurosurgery of the Keio University, Tokyo, Japan, as a Scientific Fellow of the Alexander-von-Humboldt Foundation, Bonn, Germany, and the Japan Society for the Promotion of Science, Tokyo, Japan, working in the fields of cerebral and spinal microcirculation and skull base surgery.

He served as vice chairman of the Department of Neurosurgery of the Technical University of Aachen, Germany from 1992 to 1997. The Friedrich-Wilhelm Foundation of the Technical University of Aachen honoured Dr. Bertalanffy with the “Friedrich-Wilhelm” Prize in 1994 given annually for outstanding scientific work.

In 1997 Dr. Bertalanffy was appointed to Professor on a permanent basis by the State of Hessen, Germany, and served as Professor and Chairman of the Depart­ment of Neurosurgery of the Philipps University of Marburg for 10 years. In July 2007 he was appointed to Chairman of the Department of Neurosurgery of the University of Zurich, Switzerland, where he served three and a half years in that position. In November 2010 he accepted the new position of Director of the Center for Vascular Neurosurgery at the prestigious INI – International Neuroscience Institute® in Hannover, Germany.

Dr. Bertalanffy is frequently invited to meetings or congresses as guest speaker or to visiting professorships worldwide and has made significant contributions to developments in skull base surgery and microsurgery of vascular lesions of the brain and spinal cord.

Dr. Bertalanffy is a member of the German and Swiss Societies of Neurosurgery, the German Academy of Neurosurgery, the American Academy of Neurological Surgery (corresponding member), the World Academy of Neurosurgery, the Skull Base and the Nominating Committees of the World Federation of Neurological Surgeons (former Chairman of the Nominating Committee), the International Advisory Board of the American Association of Neurological Surgeons, the Academia Eurasiana, and an honorary member of the Romanian Society of Neurosurgery.

He is the Editor-in-Chief of the scientific journal Neurosurgical Review and lends his expertise to the Editorial Boards of Neurosurgery, Acta Neurochirurgica, Techniques in Neurosurgery, Neurologia Medico-chirurgica and Zentralblatt für Neurochirurgie.

Dr. Bertalanffy has published over 150 articles in peer reviewed journals, contributed over 50 book chapters or other articles to medical texts, and presented more than 300 lectures as visiting professor or at various congresses and symposia worldwide. He is married and has 2 daughters.