Pengarang: Daniel Hänggi

Hans Jakob Steiger graduated from Medical School at the Universities of Zurich and Geneva and subsequently completed his doctoral thesis in Zurich. He then trained in neurosurgery, completing a clinical fellowship at the University of London, Ontario. In 1985 he was appointed Oberarzt (senior physician) at University Hospital, Berne and he completed his Habilitation on the pathophysiology of cerebral aneurysms in 1992. In the same year he became Vice Director of the Neurosurgical University Clinic, Berne and in 1994 was appointed C3 professor at the Ludwig-Maximilians University, Munich, a position associated with the directorship of neurovascular surgery. In 2002 Dr. Steiger was appointed C4 Professor for Neurosurgery of the Heinrich-Heine University, Düsseldorf, and Director and Chairman of the Neurosurgical Department. Since 1994 he has been co-editor of Acta Neurochirurgica/Supplementa and since 2002, assistant chief editor of Acta Neurochirurgica (European Journal of Neurosurgery). Dr. Steiger has published 192 original articles in indexed journals and is the author of various books on neurovascular topics, resident training, and management. Nima Etminan trained at the Schools of Medicine of Heinrich Heine University, Düsseldorf and the Technical University, Munich and successfully submitted his doctoral thesis (magna cum laude) in 2004. He performed his residency at the Department of Neurosurgery, Heinrich Heine University, Düsseldorf and his fellowship in cerebrovascular surgery at the Division of Neurosurgery, St. Michael’s Hospital, Toronto, Canada. He is currently Attending Neurosurgeon at the Department of Neurosurgery, Heinrich Heine University. Dr. Eminan has received several research grants and his research interests include intracranial aneurysms, cerebral vasospasm after subarachnoid hemorrhage, and photodynamic immunotherapy of glioblastomas. He is a regular publisher in peer-reviewed journals. Text for Professor Hänggi willfollow.