BackgroundThe use of augmented reality (AR) is growing in medical education, in particular, in radiology and surgery. AR has the potential to become a strategic component of neurosurgical training courses. In fact, over the years, there has been a progressive increase in the application of AR in the various fields of neurosurgery. In this study, the authors aim to define the diffusion of these augmented reality systems in recent years. This study describes future trends in augmented reality for neurosurgeons.MethodsA systematic review of the literature was conducted to identify research published from December 1st, 2011 to November 30th, 2021. Electronic databases (PubMed, PubMed Central, and Scopus) were screened. The methodological quality of studies and extracted data were assessed for “augmented reality” and “neurosurgery”. The data analysis focused on the geographical distribution, temporal evolution, and topic of augmented reality in neurosurgery.ResultsA total of 198 studies have been included. The number of augmented reality applications in the neurosurgical field has increased during the last 10 years. The main topics on which it is mostly applied are spine surgery, neuronavigation, and education. The geographical distribution shows extensive use of augmented reality in the USA, Germany, China, and Canada. North America is the continent that uses augmented reality the most in the training and education of medical students, residents, and surgeons, besides giving the greatest research contribution in spine surgery, brain oncology, and surgical planning. AR is also extensively used in Asia for intraoperative navigation. Nevertheless, augmented reality is still far from reaching Africa and other countries with limited facilities, as no publications could be retrieved from our search.ConclusionsThe use of AR is significantly increased in the last 10 years. Nowadays it is mainly used in spine surgery and for neurosurgical education, especially in North America, Europe and China. A continuous growth, also in other aspects of the specialty, is expected in the next future.

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Italy was initially one of the worse affected countries by the novel coronavirus . Medical students frequenting hospitals are more susceptible to be infected by the virus but also able to see the effects of the pandemic from the frontline. The aim of this study was to assess the COVID-19 related knowledge, behavioral changes, and perceptions of Italian medical students within the first 90 days after the onset of the outbreak in Italy. A national crosssectional study was conducted from 23rd April to 31st April 2020. Participants were Italian medical students whose knowledge, behavioral changes, and perceptions of the COVID-19 pandemic were assessed. The survey consisted of: demographics, COVID-19 related general knowledge, behavioral changes, and perceptions of the pandemic. A total of 520 students answered the survey. The majority of the students' ages ranged from 21 to 25 years old (345, 66.3%). Only 48.6% stated that they had received a formal education about COVID-19 from their medical institutions. However, all the students declared that they tried to inform themselves, mostly through WHO, CDC, UpToDate (56%), but also (21.6%) through national guidelines, social networks (Facebook, Instagram, and YouTube) (11.5%), and other sources (10.9%). Italian medical students demonstrated a high level of COVID-19-related general knowledge as well as self-reported preventative behavioral changes but only had a moderate risk perception regarding the pandemic. They improved their health habits but questioned the reliability of information and handling of the pandemic by health authorities.