Neurorehabilitation together with functional neurosurgery are steadily growing fields. In order to encapsulate such concepts, the fourth official scientific meeting of the Neurorehabilitation and Reconstructive Neurosurgery Committee of the World Federation of Neurosurgical Societies (WFNS) was held in Seoul. This volume is the fourth in a new series of proceedings covering the most important advancements in this field.

The XIV International Symposium on Brain Edema and Brain Tissue Injury took place in Warsaw, Poland, on 11-14 June 2008. Two prominent members of the International Society for Brain Edema: Dr. Igor Klatzo and Dr. Julien Hoff have passed away after the last 2005 Symposium in Ann Arbor, USA. Dr. Igor Klatzo was actually the founder of the Society, and the Advisory Board decided to commemorate Dr. Igor Klatzo by introducing a lecture named after him to be given at the Symposium. Prof. Dr. Hans-Jurgen Reulen has been honored to give the frst Igor Klatzo lecture entitled "Bulk Flow and Diffusion revisited, and Clinical Applications". This volume contains 65 out of the 104 papers presented at the Symposium as lectures or posters. The topics of the Symposium were similar to those discussed at the previous ones. Many discussions focused on clinical work especially diagnosis, subarachnoid hemorrhage, hydrocephalus, and traumatic brain injury. Diagnosis and therapy, including surgical methods, have also been verifed. Much attention was drawn to the application of decompressive craniectomy in the treatment of posttr- matic intracranial hypertension. The pathomechanisms of brain edema and tissue injury studied in experimental models have been also presented.

88 short papers originating from the 12th International Symposium on Intracranial Pressure and Brain Monitoring held in August 2004 in Hong Kong present experimental as well as clinical research data on invasive and non-invasive intracranial pressure and brain biochemistry monitoring. The papers have undergone a peer-reviewing and are organized in nine sections: ICP management in head injury, neurochemical monitoring, intracranial hypertension, neuroimaging, hydrocephalus, clinical trails, experimental studies, brain compliance and biophysics.

More than 60 papers written by internationally recognized experts cover the broad spectrum of brain edema. The main topics treated are: ischemia & hemorrhage, trauma (experimental and clinical), cerebral hemorrhage, tumor, hydrocephlaus & intracranial pressure (ICP), neuromonitoring & neuroimaging, treatments, blood brain barrier, and miscellaneous.

These proceeding cover new trends presented at the IV Congress of the International Society of Reconstructive Neurosurgery (ISRN), 2015. ISRN is an "open" multidisciplinary society that deals with advances in spine and peripheral-nerve reconstructive surgery, central nervous system revascularization (surgical, radio interventional), neuromodulation, bioengineering and transplantation, which are the latest tools used to promote reconstruction, restoration and rehabilitation.

88 short papers originating from the 12th International Symposium on Intracranial Pressure and Brain Monitoring held in August 2004 in Hong Kong present experimental as well as clinical research data on invasive and non-invasive intracranial pressure and brain biochemistry monitoring. The papers have undergone a peer-reviewing and are organized in nine sections: ICP management in head injury, neurochemical monitoring, intracranial hypertension, neuroimaging, hydrocephalus, clinical trails, experimental studies, brain compliance and biophysics.

This volume is the second in a new series of pro The task carried out through the collaboration of ceedings covering the official scientific meetings of the neurosurgeons and specialists in neurorehabilitation Neurorehabilitation Committee of the World Federa cannot be viewed simply as a restoration of function or tion of Neurosurgical Societies (WFNS). The first reconstruction of structure. Recent advances in neu scientific meeting of the WFNS Neurorehabilitation roimaging techniques have begun to demonstrate that Committee was held successfully in Munster, Ger it involves extensive functional and structural reorga many, in 2000 under the auspices of Professor Klaus nization of neural networks within the brain and R. H. von Wild. The proceedings of that meeting probably the spinal cord. On this basis, we felt that it (Functional Rehabilitation in Neurosurgery and Neu might be more appropriate to refer to such activities as rotraumatology) were published as a supplement to re-engineering of the damaged brain and spinal cord. Acta Neurochirurgica (volume 79, 2001). This first In order to encapsulate such a concept, the second scientific meeting highlighted the important role scientific meeting was entitled the Second Interna played by neurosurgeons in neurorehabilitation be tional Symposium on Neurosurgical Re-engineering of at an early period after brain or spinal cord the Damaged Brain and Spinal Cord (NRDBS'02). ginning damage.