ABSTRACT
Introduction: Bibliometric works aim to collect and to do a quantitative analysis of the scientific production. In Chile there are no studies that characterize neurosurgical scientific production. The objective of this study is to describe the free submission presented at the last four National Congress of the Society of Neurosurgery of Chile. Materials and Methods: The abstracts books of each year National Congress of Chilean Society of Neurosurgery were reviewed between the year 2010 and 2013. Results: A total of 251 free submissions were presented, and were filiated 354 participations of 51 different institutions. The 73,1 percent of the institutions named in the different submissions came from the Metropolitan Region. The most - named hospital group was the Institute of Neurosurgery Dr. Alfonso Asenjo with a 19,2 percent(68), while the most - named University was Pontificia Universidad Católica de Chile with a 6,5 percent(23). The most common topic was tumor and vascular neuropathology with a 29,4 percent(74) and 21,1 percent(53) respectively. Discussion and Conclusions: We noticed that the majority of submissions involves one institution, with an average of 1,4 institutions per free submission, this might be explained because uncompleted filiations of authors. We can see a clear centralization of the origin of the different submissions. The two more representative areas of investigation in these congresses were tumor and vascular neuropathology. We think that is necessary to create a common protocol for registration and filiations of free submissions in the different congresses to create a National database.